TALKS ON MANURES A SERIES OF FAMILIAR AND PRACTICAL TALKS BETWEEN THE AUTHOR AND THE DEACON, THE DOCTOR, AND OTHER NEIGHBORS, ON THE WHOLE SUBJECT
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o the American Farmer.-- The growth of Wheat Year after Year on the same Land, unmanured, with Farm-yard Manure, and with various Organic and Inorganic Fertilizers.
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immediately active and available. It is unquestionably true, that the same amount of nitrogen in barn-yard manure, will not produce so great an effect as its theoretical value would in
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for twenty-seven years, there has been a great loss of nitrogen. The same remarks apply to this case. No one ever advocates summer-fallowing land every other year, and sowing nothing
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d grass, root, stem, and branch, all are composed or made up of these same dozen elements. If I ask you what bread is made of, you say it is composed of the dozen elements aforesaid. I
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refreshes the plants, and fills the leaves with sap, precisely in the same way. All these fertilizing effects, however, belong to climate. It is inaccurate to associate either mulching
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and on the other. This will give you some good, rich muck, and at the same time drain your swamp. Then cut some _under-drains_ from _y_ towards the higher land at _w_, _v_, and _h_, an
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om the soil. In this way the “condition” of the soil would remain the same. If we sell _less_ than we develop, the condition of the soil will improve. By “condition,” I mean the amoun
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ed at the breweries with the “grains,” and are sold to milkmen at the same price--from 12 to 15 cents per bushel. Where their value is not known, they can, doubtless, be sometimes obta
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enting in an exposed heap for six months, it still contains about the same _percentage_ of water. When kept in the heap until August, the percentage of water is much greater. Of four t
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gen, and 30¾ lbs. of soluble mineral matter. If they buy a ton of the same manure that has been kept under cover until February, they get, nitrogen, 15 lbs.; soluble minerals, 42½ lbs.
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, and the manure becomes rapidly deteriorated in value, whilst at the same time it is diminished in weight. “21. Well-rotten dung is more readily affected by the deteriorating influen
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garden, more than two loads of the straw and corn manure. To get the same amount of nitrogen, phosphoric acid, and potash, you have to spend more than twice the labor in cleaning out
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imes, when comparatively dry, we use the refuse sheep bedding for the same purpose. Where the sheep barn is contiguous to the pig-pens, and when the sheep bedding can be thrown at once
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iately available. It makes it more soluble. We ferment manure for the same reason that we decompose bone-dust or mineral phosphates with sulphuric acid, and convert them into superphos
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nd in the manure.” How to keep cows tied up in the barn, and at the same time save all the urine, is one of the most difficult problems I have to deal with in the management of manur
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nd supporting 20 cows, would give us a gross return of $1,204.50. The same farm so improved as to produce 2¼ tons of hay or its equivalent, per acre--fed to 20 cows _capable of eating,
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this, his land has been growing richer and richer. And, in fact, the same is true of Mr. Geddes’ farm. It is richer land to-day than when first plowed, while there is one field that f
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80.4 ” ” ” ” Fresh solid cow-dung contains, according to the same authority, 90 per cent of water. I have frequently seen manure drawn out in the spring, that had not been de
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arch, April, May, and June, than wheat; and, consequently, to get the same amount of food, it is not necessary that the clover should have as much nitrogen, phosphoric acid, potash, et
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es of wheat, and as much potash as the produce from five acres of the same crop. Clover thus unquestionably removes from the land very much more mineral matter than does wheat; wheat,
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s, containing 61 lbs. of nitrogen; that is, there was very nearly the same quantity of roots and nitrogen in them, as that furnished in the soil from the brow of the hill. “The roots,
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f nitrogen per acre, that is, considerably more than was found in the same section of the soil where the clover was mown twice for hay; showing plainly, that during the ripening of the
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cre, and contained 100 lbs. of nitrogen. A few yards distance, on the same soil, where the clover was bad, the acre of roots contained only 31 lbs. of nitrogen per acre. So far, so go
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ments at Rothamsted on the Growth of Wheat, Year After Year, on the Same Land. Table 1.--Manures And Produce; 1st Season, 1843-4. Manures and Seed (Old Red Lammas) Sown Autumn 1
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f manure again in 1845?” “Precisely that, Deacon,” said I, “and this same plot has received this amount of manure every year since, up to the present time--for these same experiments
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of corn and 789 lbs. of straw, which was the increase obtained by the same amount of ammoniacal salt on 10_a_, as compared with 10_b_. “It will be observed, however, that in the forme
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monia-salts alone on plot 10_a_, gave 19¼ bushels per acre, while the same quantity of ammonia, with superphosphate in addition, gave, on plot 9_b_, 25 bushels per acre. The addition
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--“What have you here?” --“Ammonia,” said I; and at 6_b_ he asked the same question, and I replied “ammonia.” At 7_a_, the same question and the same answer. Standing between 7_b_ and
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that the next year and the year after, the salt _was_ applied at the same time as the other manures. It gave an increase of 94 lbs. of grain and 61 lbs. of straw in 1851, but the foll
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uite 29 bushels per acre, and only weighed 55 lbs. per bushel. On the same plot, the year before, with precisely the same manure, the yield was nearly 37 bushels per acre, and the weig
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e consider that this is the twentieth wheat-crop in succession on the same land, these figures are certainly remarkable. “They are so,” said the Deacon, “and what to me is the most su
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king them together in a bottle, and allowing the soil to subside, the same result was obtained. The action, therefore, was in no way referable to any physical law brought into operatio
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s in the spring assumed a rich, dark green color. I have observed the same effect where coal-ashes were spread on grass-land; and I have thought that the apparent benefit was due large
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shes Experiments on the Growth of Barley, Year After Year, on the Same Land, Without Manure, and With Different Descriptions of Manure, Hoos Field, Rothamsted, England. Tabl
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rs.] Experiments on the Growth of Barley, Year After Year, on the Same Land, Without Manure, and With Different Descriptions of Manure, Hoos Field, Rothamsted, England. Tabl
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traw. “That will do,” said the Deacon, “but I see that in 1857, this same plot, with the same manure, produced 66½ bushels of dressed grain per acre, weighing 53½ lbs. to the bushel,
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nips does not enrich land for grain crops. Turnips were grown on the same land, year after year, for ten years. The land was then plowed and sown to barley for three years. The follow
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them. In 1857, I made the following experiments on potatoes, in the same field on which the preceding experiment was made in 1852. In this case, as before, the land was a two-year-o
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n autumn, has afforded a yield of about 70 bushels per acre, when the same amount applied in spring, gave only 50 bushels. A thin coating of manure applied to winter-wheat at the time
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And such facts and experiments as we have, seem to indicate that the same is also true of Indian corn. It is, at any rate, reasonable to suppose that, as Indian corn belongs to the sa
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Plot 10, with 400 lbs. of unleached wood-ashes per acre, produces the same quantity of _sound corn_, with an extra bushel of ‘nubbins’ per acre, as plot 1, without any manure at all; a
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gave an increase of 14½ tons per acre. And the following year, on the same land, it gave an increase of 13½ tons; and the next year, on the same land, over 9 tons.” “Yes,” said I, “th
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res did any good. Ellwanger & Barry also tried them, and reported the same negative result. This was several years ago, and I do not think any similar experiments have been made since.
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e land_, $1.06. “A ton of the fresh fæces,” said the Deacon, “at the same estimate, would be worth (20 lbs. nitrogen, at 20 cents, $4; 21¾ lbs. phosphoric acid, at 12½ cents, $2.70),
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ticle.” As to whether it is better, when you can buy nitrogen at the same price in nitrate of soda as you can in sulphate of ammonia, to use the one or the other will depend on circum
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crop of wheat. And the experience of farmers everywhere tends in the same direction. England is the greatest turnip-growing country in the world, and you will find that where one farm
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e, this was to be expected, and they had expected it much sooner. The same with wheat; he expected the end would come in a few years, but they had now gone on between 30 and 40 years.
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y giving to it the food necessary to grow good grasses, sowing at the same time a small quantity of the best seeds. I further suggested that a flock of sheep should be allowed to run o
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se in the fall for wheat, on land that has been cropped with oats the same year. The manure put on for potatoes is generally estimated to enrich the land sufficient for it to produce o
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ng for, 35-168 ” the 20th Crop on Same Land, 213 ” Top-dressing for, 270 ”
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value.” “Suppose, Deacon,” said he _quotation marks as in original (same speaker)_ carbonaceous matter and water, of little or no value?” _text has question mark after close quote_
manure one. Is this “high farming?” I think in my circumstances it is
good farming, but it is not high farming. It gives me large crops per
acre, but I have comparatively few acres in crops that are sold from the
farm.
“High farming,” if the term is to have any definite meaning at all
should only be used to express the idea of a farm so managed that the
soil is rich enough to produce maximum crops _every year_. If you adopt
the system of rotation quite general in this section--say, 1st year,
corn on sod; 2d, barley or oats; 3d, wheat; 4th, clover for hay and
afterwards for seed; 5th, timothy and clover for hay; and then the 6th
year plowed up for corn again--it would be necessary to make the land
rich enough to produce say 100 bushels shelled corn, 50 bushels of
barley, 40 bushels of wheat, 3 tons clover-hay, and 5 bushels of
clover-seed, and 3 tons clover and timothy-hay per acre. This would be
_moderate_ high farming. If we introduced lucern, Italian rye-grass,
corn-fodder, and mangel-wurzel into the rotation, we should need still
richer land to produce a maximum growth of these crops. In other words,
we should need more manure.
The point I am endeavoring to get at, is this: Where you want a farm to
be self-supporting--where you depend solely on the produce of the farm
to supply manure--it is a sheer impossibility to adopt high farming _on
the whole of your land_. I want to raise just as large crops per acre as
the high farmers, but there is no way of doing this, unless we go
outside the farm for manure, without raising a smaller area of such
crops as are sold from the farm.
I do not wish any one to suppose that I am opposed to high farming.
There is occasionally a farm where it may be practised with advantage,
but it seems perfectly clear to my mind that as long as there is such an
unlimited supply of _land_, and such a limited supply of fertilizers,
most of us will find it more profitable to develop the latent stores of
plant-food lying dormant in the soil rather than to buy manures. And it
is certain that you can not adopt high farming without either buying
manure directly, or buying food to feed to animals that shall make
manure on the farm.
And you must recollect that high farming requires an increased supply of
labor, and hired help is a luxury almost as costly as artificial
fertilizers.
We have heard superficial thinkers object to agricultural papers on the
ground that they were urging farmers to improve their land and produce
larger crops, “while,” say they, “we are producing so much already that
it will not sell for as much as it costs to produce it.” My plan of
improved agriculture does not necessarily imply the production of any
more wheat or of any more grain of any kind that we sell than we raise
at present. I would simply raise it on fewer acres, and thus lessen the
expense for seed, cultivation, harvesting, etc. I would raise 30 bushels
of wheat per acre every third year, instead of 10 bushels every year.
If we summer-fallowed and plowed under clover in order to produce the 30
bushels of wheat once in three years, instead of 10 bushels every year,
no more produce of any kind would be raised. But my plan does not
contemplate such a result. On my own farm I seldom summer-fallow, and
never plow under clover. I think I can enrich the farm nearly as much by
feeding the clover to animals and returning the manure to the land. The
animals do not take out more than from five to ten per cent of the more
valuable elements of plant-food from the clover. And so my plan, while
it produces as much and no more grain to sell, adds greatly to the
fertility of the land, and gives an increased production of beef,
mutton, wool, butter, cheese, and pork.
“But what is a man to do who is poor and has poor land?” If he has good
health, is industrious, economical, and is possessed of a fair share of
good common sense, he need have no doubt as to being able to renovate
his farm and improve his own fortune.
Faith in good farming is the first requisite. If this is weak, it will
be strengthened by exercise. If you have not faith, act as though you
had.
Work hard, but do not be a drudge. A few hours’ vigorous labor will
accomplish a great deal, and encourage you to continued effort. Be
prompt, systematic, cheerful, and enthusiastic. Go to bed early and get
up when you wake. But take sleep enough. A man had better be in bed than
at the tavern or grocery. Let not friends, even, keep you up late;
“manners is manners, but still your elth’s your elth.”
“But what has this to do with good farming?” More than chemistry and all
the science of the schools. Agriculture is an art and must be followed
as such. Science will help--help enormously--but it will never enable us
to dispense with industry. Chemistry throws great light on the art of
cooking, but a farmer’s wife will roast a turkey better than a Liebig.
When Mr. James O. Sheldon, of Geneva. N.Y., bought his farm, his entire
crop of hay the first year was 76 loads. He kept stock, and bought more
or less grain and bran, and in eleven years from that time his farm
produced 430 loads of hay, afforded pasture for his large herd of
Shorthorn cattle, and produced quite as much grain as when he first took
it.
Except in the neighborhood of large cities, “high farming” may not pay,
owing to the fact that we have so much land. But whether this is so or
not, there can be no doubt that the only profitable system of farming is
to raise large crops on such land as we cultivate. High farming gives us
large crops, and _many of them_. At present, while we have so much land
in proportion to population, we must, perhaps, be content with large
crops of grain, and few of them. We must adopt the slower but less
expensive means of enriching our land from natural sources, rather than
the quicker, more artificial, and costly means adopted by many farmers
in England, and by market gardeners, seed-growers, and nurserymen in
this country. Labor is so high that we can not afford to raise a small
crop. If we sow but half the number of acres, and double the yield, we
should quadruple our profits. I have made up my mind to let the land lie
in clover three years, instead of two. This will lessen the number of
acres under cultivation, and enable us to bestow more care in plowing
and cleaning it. And the land will be richer, and produce better crops.
The atmosphere is capable of supplying a certain quantity of ammonia to
the soil in rains and dews every year, and by giving the wheat crop a
three years supply instead of two years, we gain so much. Plaster the
clover, top-dress it in the fall, if you have the manure, and stimulate
its growth in every way possible, and consume all the clover on the
land, or in the barn-yard. Do not sell a single ton; let not a weed
grow, and the land will certainly improve.
The first object should be to destroy weeds. I do not know how it is in
other sections, but with us the majority of farms are completely overrun
with weeds. They are eating out the life of the land, and if something
is not done to destroy them, even exorbitantly high prices can not make
farming profitable. A farmer yesterday was contending that it did not
pay to summer-fallow. He has taken a run-down farm, and a year ago last
spring he plowed up ten acres of a field, and sowed it to barley and
oats. The remainder of the field he summer-fallowed, plowing it four
times, rolling and harrowing thoroughly after each plowing. After the
barley and oats were off, he plowed the land once, harrowed it and sowed
Mediterranean wheat. On the summer-fallow he drilled in Diehl wheat. He
has just threshed, and got 22 bushels per acre of Mediterranean wheat
after the spring crop, at one plowing, and 26 bushels per acre of Diehl
wheat on the summer-fallow. This, he said, would not pay, as it cost him
$20 per acre to summer-fallow, and he lost the use of the land for one
season. Now this may be all true, and yet it is no argument against
summer-fallowing. Wait a few years. Farming is slow work. Mr. George
Geddes remarked to me, when I told him I was trying to renovate a
run-down farm, “you will find it the work of your life.” We ought not to
expect a big crop on poor, run-down land, simply by plowing it three or
four times in as many months. Time is required for the chemical changes
to take place in the soil. But watch the effect on the clover for the
next two years, and when the land is plowed again, see if it is not in
far better condition than the part not summer-fallowed. I should expect
the clover on the summer-fallow to be fully one-third better in
quantity, and of better quality than on the other part, and this extra
quantity of clover will make an extra quantity of good manure, and thus
we have the means of going on with the work of improving the farm.
“Yes,” said the Doctor, “and there will also be more clover-roots in the
soil.”
“But I can not afford to wait for clover, and summer-fallowing,” writes
an intelligent New York gentleman, a dear lover of good stock, who has
bought an exhausted New England farm, “I must have a portion of it
producing good crops right off.” Very well. A farmer with plenty of
money can do wonders in a short time. Set a gang of ditchers to work,
and put in underdrains where most needed. Have teams and plows enough to
do the work rapidly. As soon as the land is drained and plowed, put on a
heavy roller. Then sow 500 lbs. of Peruvian guano per acre broadcast, or
its equivalent in some other fertilizer. Follow with a Shares’ harrow.
This will mellow the surface and cover the guano without disturbing the
sod. Follow with a forty-toothed harrow, and roll again, if needed,
working the land until there is three or four inches of fine, mellow
surface soil. Then mark off the land in rows as straight as an arrow,
and plant corn. Cultivate thoroughly, and kill every weed. If the
ditchers can not get through until it is too late to plant corn, drill
in beans on the last drained part of the field.
Another good crop to raise on a stock farm is corn-fodder. This can be
drilled in from time to time as the land can be got ready. Put on half a
ton of guano per acre and harrow in, and then mark off the rows three
feet apart, and drill in four bushels of corn per acre. Cultivate
thoroughly, and expect a great crop. By the last of July, the Ayrshire
cows will take kindly to the succulent corn-fodder, and with three or
four quarts of meal a day, it will enable each of them to make 10 lbs.
of butter a week.
For the pigs, sow a few acres of peas. These will do well on sod-land,
sown early or late, or a part early and a part late, as most convenient.
Sow broadcast and harrow in, 500 lbs. of Peruvian guano per acre and 200
lbs. of gypsum. Drill in three bushels of peas per acre, or sow
broadcast, and cover them with a Shares’ harrow. Commence to feed the
crop green as soon as the pods are formed, and continue to feed out the
crop, threshed or unthreshed, until the middle of November. Up to this
time the bugs do comparatively little damage. The pigs will thrive
wonderfully on this crop, and make the richest and best of manure.
I have little faith in any attempt to raise root crops on land not
previously well prepared. But as it is necessary to have some
mangel-wurzel and Swede turnips for the Ayrshire cows and long-wool
sheep next winter and spring, select the cleanest and richest land that
can be found that was under cultivation last season. If fall plowed, the
chances of success will be doubled. Plow the land two or three times,
and cultivate, harrow, and roll until it is as mellow as a garden. Sow
400 lbs. of Peruvian guano and 300 lbs. of good superphosphate per acre
broadcast, and harrow them in. Ridge up the land into ridges 2½ to 3 ft.
apart, with a double mould-board plow. Roll down the ridges with a light
roller, and drill in the seed. Sow the mangel-wurzel in May--the earlier
the better--and the Swedes as soon afterwards as the land can be
thoroughly prepared. Better delay until June rather than sow on rough
land.
The first point on such a farm will be to attend to the grass land. This
affords the most hopeful chance of getting good returns the first year.
But no time is to be lost. Sow 500 lbs. of Peruvian guano per acre on
all the grass land and on the clover, with 200 lbs. of gypsum in
addition on the latter. If this is sown early enough, so that the spring
rains dissolve it and wash it into the soil, great crops of grass may be
expected.
“But will it pay?” My friend in New York is a very energetic and
successful business man, and he has a real love for farming, and I have
no sort of doubt that, taking the New York business and the farm
together, they will afford a very handsome profit. Furthermore, I have
no doubt that if, after he has drained it, he would cover the whole farm
with 500 lbs. of Peruvian guano per acre, or its equivalent, it would
pay him better than any other agricultural operation he is likely to
engage in. By the time it was on the land the cost would amount to about
$20 per acre. If he sells no more grass or hay from the farm than he
would sell if he did not use the guano, this $20 may very properly be
added to the permanent capital invested in the farm. And in this aspect
of the case, I have no hesitation in saying it will pay a high rate of
interest. His bill for labor will be as much in one case as in the
other; and if he uses the guano he will probably double his crops. His
grass lands will carry twenty cows instead of ten, and if he raises the
corn-fodder and roots, he can probably keep thirty cows better than he
could otherwise keep a dozen; and, having to keep a herdsman in either
case, the cost of labor will not be much increased. “But you think it
will not pay?” It will probably not pay _him_. I do not think _his_
business would pay me if I lived on my farm, and went to New York only
once or twice a week. If there is one business above all others that
requires constant attention, it is farming--and especially
stock-farming. But my friend is right in saying that he cannot afford to
wait to enrich his land by clover and summer-fallowing. His land costs
too much; he has a large barn and everything requisite to keep a large
stock of cattle and sheep. The interest on farm and buildings, and the
money expended in labor, would run on while the dormant matter in the
soil was slowly becoming available under the influence of good tillage.
The large barn must be filled at once, and the only way to do this is to
apply manure with an unsparing hand. If he lived on the farm, I should
have no doubt that, by adopting this course, and by keeping improved
stock, and feeding liberally, he could make money. Perhaps he can find a
man who will successfully manage the farm under his direction, but the
probabilities are that his present profit and pleasure will come from
the gratification of his early love for country life.
CHAPTER II.
WHAT IS MANURE?
“What is the good of asking such a question as that?” said the Deacon;
“we all know what manure is.”
“Well, then,” I replied, “tell us what it is?”
“_It is anything that will make crops grow better and bigger_,” replied
the Deacon.
“That is not a bad definition,” said I; “but let us see if it is a true
one. You have two rows of cabbage in the garden, and you water one row,
and the plants grow bigger and better. Is _water_ manure? You cover a
plant with a hand-glass, and it grows bigger and better. Is a hand-glass
manure? You shelter a few plants, and they grow bigger and better. Is
shelter manure? You put some pure sand round a few plants, and they grow
bigger and better. Is pure sand manure? I think we shall have to reject
the Deacon’s definition.”
Let us hear what the Doctor has to say on the subject.
“Manure,” replied the Doctor, “is the _food of plants_.”
“That is a better definition,” said I; “but this is really not answering
the question. You say manure is plant-food. But what is plant-food?”
“Plant-food,” said the Doctor, “is composed of twelve elements, and,
possibly, sometimes one or two more, which we need not here talk about.
Four of these elements are gases, oxygen, hydrogen, carbon, and
nitrogen. When a plant or animal is burnt, these gases are driven off.
The ashes which remain are composed of potash, soda, lime, and magnesia;
sulphuric acid, phosphoric acid, chlorine, and silica. In other words,
the ‘food of plants’ is composed of four organic, or gaseous elements,
and eight inorganic, or mineral elements, of which four have acid and
four alkaline properties.”
“Thank you, Doctor,” said the Deacon, “I am glad to know what manure is.
It is the food of plants, and the food of plants is composed of four
gases, four acid and four alkaline elements. I seem to know all about
it. All I have wanted to make my land rich was plenty of manure, and now
I shall know where to get it--oxygen, hydrogen, carbon, and nitrogen;
these four atmospheric elements. Then potash, soda, magnesia, and lime.
I know what these four are. Then sulphur, phosphorous, silica (sand,)
and chlorine (salt). I shall soon have rich land and big crops.”
Charley, who has recently come home from college, where he has been
studying chemistry, looked at the Deacon, and was evidently puzzled to
understand him. Turning to the Doctor, Charley asked modestly if what
the Doctor had said in regard to the composition of plant food could not
be said of the composition of all our animals and plants.
“Certainly,” replied the Doctor, “all our agricultural plants and all
our animals, man included, are composed of these twelve elements,
oxygen, hydrogen, carbon, and nitrogen; phosphorus, sulphur, silica,
chlorine, potash, soda, magnesia, and lime.”
Charley said something about lime, potash, and soda, not being
“elements;” and something about silica and chlorine not being found in
animals.
“Yes,” said I, “and he has left out _iron_, which is an important
constituent of all our farm crops and animals.” Neither the Doctor nor
the Deacon heard our remarks. The Deacon, who loves an argument,
exclaimed: “I thought I knew all about it. You told us that manure was
the food of plants, and that the food of plants was composed of the
above twelve elements; and now you tell us that man and beast, fruit and
flower, grain and grass, root, stem, and branch, all are composed or
made up of these same dozen elements. If I ask you what bread is made
of, you say it is composed of the dozen elements aforesaid. If I ask
what wheat-straw is made of, you answer, the _dozen_. If I ask what a
thistle is made of, you say the dozen. There are a good many milk-weeds
in my strawberry patch, and I am glad to know that the milk-weed and the
strawberry are both composed of the same dozen elements. Manure is the
food of plants, and the food of plants is composed of the above dozen
elements, and every plant and animal that we eat is also composed of
these same dozen elements, and so I suppose there is no difference
between an onion and an omelet, or between bread and milk, or between
mangel-wurzel and manure.”
“The difference,” replied the Doctor, “is one of proportion. Mangels and
manure are both composed of the same elements. In fact, mangels make
good manure, and good manure makes good mangels.”
The Deacon and the Doctor sat down to a game of backgammon, and Charley
and I continued the conversation more seriously.
CHAPTER III.
SOMETHING ABOUT PLANT-FOOD.
“The Doctor is in the main correct,” said I; “but he does not fully
answer the question, ‘What is manure?’ To say that manure is plant-food,
does not cover the whole ground. All soils on which plants grow, contain
more or less plant-food. A plant can not create an atom of potash. It
can not get it from the atmosphere. We find potash in the plant, and we
know that it got it from the soil and we are certain, therefore, that
the soil contains potash. And so of all the other mineral elements of
This page is an AI-organised index. The label means the grouping and cross-links were compiled with AI; the information itself comes from the public-domain books, reports and manuals listed below. Open any source to read the local copy or follow the link to the original publication.
PUBLIC-DOMAIN BOOK
Talks on Manures A Series of Familiar and Practical Talks Between the Author and the Deacon, the Doctor, and Other Neighbors, on the Whole Subject
primary
Full text in the local archive
Bibliographic record from the archive catalogue.