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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growth of root brings the plant in contact with a larger feeding surface, and enables it to take up more nitric acid from its solution in the soil. Such is also the case during the w
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aith in good plowing, early sowing, and thorough cultivation. PREFACE TO FIRST EDITION. The Printers have got our “Talks on Manures” in type; and the publishers want a Preface.
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n 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, se
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is tillage.” CHAPTER VIII. SUMMER-FALLOWING. This is not the place to discuss the merits, or demerits, of fallowing. But an intelligent Ohio farmer writes me: --“I see that you
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eat will be produced by the slow combustion of a portion of the carbonaceous and nitrogenous matter, and the result will be a mass of material, which we should all recognize as “manur
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ny value in the table. For instance, there is a large amount of carbonaceous matter in the manure of animals, which, for some crops, is not without value, but which is not here taken
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s very considerable. The five tons (10,000 lbs.,) of fresh manure placed in a heap on the 3d of November, are reduced to 7,138 lbs. by the 30th of April. Of this 4,707 lbs. is water
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y manure deteriorates by being exposed to rain, spread out on the surface of the yard. The table merits careful study.” Table Showing Composition of Experimental Heap (No. III.). F
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plow in the manure at once, or to let it lie for some time on the surface, and to give the rain full opportunity to wash it into the soil. “It appears to me a matter of the greatest
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that he gets far more benefit from the manure when applied on the surface, and left exposed for several months, than if he plowed it under at once. I like to write and talk about Jo
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ht the farm thirteen years ago; and much of this increase has taken place during the last five or six years, and I expect to see still greater improvement year by year. “Never mind a
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e. 2d. When manure is allowed to lie scattered about over a large surface, it is liable to have much of its value washed out by the rain. In a compact heap of this kind, the rain or s
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ceive from ten to twenty times as much water as would fall on the surface of the heap.” “But you do recommend piling manure and fermenting it in the open air and keeping the top flat
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implements 65.00 Average repairs of place and buildings 175.00 Average depreciation and interest on stock 180.00 In
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practice. We must either plow under the clover, let it rot on the surface, or pasture it, or use it for soiling, or make it into hay, feed it out to stock, and return the manure to th
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to these crops, either by strengthening the straw, or stems of graminaceous plants, or otherwise benefiting them; but, after deducting the amount of silica from the total amount of m
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ction, a six-inch slice cut down at a depth of 12 inches from the surface, no distinct fibres could be found. The soil was almost completely saturated with rain when it was dug up on
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hed, when very nearly dry: Lbs. Surface, six inches 2,407,900 Next ” 2,444,200 Third ” 2,480,500 “
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nalyses of the soil show that in the first eighteen inches of the surface-soil, there was 6,550 lbs. of nitrogen per acre, on one part of the field, and 10,300 lbs. on the other part.
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about 5 per cent of nitrogen, and is also rich in minerals and _carbonaceous matter_. It gives an increase, but not as large in proportion to the nitrogen furnished, as the sulphate o
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t there is little danger of any loss from spreading manure on the surface, and I suppose you would have us conclude that we make a mistake in plowing it under, as the soil renders it
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nd it to his advantage to use it largely as a top-dressing on the surface. Exposing manure to the atmosphere, spread out on the land for several months, and harrowing it occasionally,
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and important results. I was there at the time. But this is not the place to discuss the question. I am often amused, however, at the remarks we often hear in regard to the inferior q
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njured by stagnant water _in the soil_, and standing water on the surface. I think we may safely say that one-third the wheat-crop of this county (Monroe Co., N.Y.), is lost for want
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potash, etc., was mixed with it, the ammonia, or potash, taking the place of the lime or soda. Prof. Way’s discovery, then, is not that soils have “absorptive properties”--that has b
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siderable extent. I have several times sown barley as soon as the surface-soil was thawed out five or six inches deep, but with a bed of solid frozen earth beneath. 3d. Two-rowed bar
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was applied in the spring. If the manure had been applied on the surface, instead of plowing it under, I believe the effect would have been still more in favor of the autumn-manuring
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h a little soil, and then the superphosphate or sulphate of ammonia placed on the top and covered with soil before the seed was planted. Notwithstanding this precaution, the rain wash
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ill not interfere with the drill. And the manure will be near the surface, where the young roots of the wheat can get hold of it. “You must recollect,” said the Doctor, “that the roo
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case; and yet there seem to be some facts that would incline us to place Indian corn with the leguminous plants, such as clover, peas, and beans, rather than with the cereals, wheat,
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to good food the refuse plant-food left in the soil. It is to the surface soil, what clover is to the subsoil. To the market gardener, or to a farmer who manures heavily common turnip
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e trouble is in the quality of the manure. It contains too much carbonaceous matter. In other words, it is so poor in nitrogen and phosphoric acid, that an excessive quantity has to b
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each load of this rotted manure costs at least $5.00. H. E. Hooker places the cost of manure equally high, but seems willing to use all he can get, and does not think we can profitab
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Some of it comes back to us in rains and dews. Of course, there are places where the sewage of our cities and villages can be used for irrigating purposes. But when water is used as f
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acid, and potash, are largely retained in the first few inches of surface soil, and the deeper roots get hold of only those portions which leach through the upper layer of earth. Nitr
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r thirty years’ experience in the use of these fertilizers, I would place far more confidence on a good and reliable analysis than on any actual trial I could make in the field. Testi
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and was very light, and that you might walk over the fresh plowed surface in the wettest weather without any clay sticking to your boots: still a portion of the soil was dark in color
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c acid by drainage. I was not at all surprised to find, that the surface soil of a wood on my farm, was poorer in nitrogen than the soil of an old permanent pasture, to which no manu
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o dispense with railroad transportation in bringing manure to their places and marketing crops. I have noticed that one of the shrewdest gardeners invariably composts horn-shavings an
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|948 | 1.6| 5.0| 2.2| 0.4| 0.3| 0.4| 1.0| 0.4| 0.2 Sugar-beet Pomace |700 | 2.9| 11.4| 3.9| 0.9| 2.6| 0.7| 1.1| 0.4| 0.9 Clarifying Refuse |948 | 0.8| 3.3| 0.3| 0.1| 1.1| 0.2|
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of roots) | 19 | 0.24| 1.15|0.336|0.108|0.132|0.144 Pomace (15 per cent | | | | | | | of roots) | 46 | 0.44| 1.71|0.5
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by Growing, 133-163 ” Letting it Rot on the Surface as Manure, 134 ” Nitrogen as a Manure for, 141 ” Pastu
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uperphosphate of Lime, When First Made in the United States, 324 Surface Application of Manure, 70-268 Swamp-muck,
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con,” 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_ It would be a very
2 AA. | 315 |251 |329 |181 |233 |133 ‖ 134 |320 |118 |190 |133 |143
3 AA. | 318 |236 |334 |212 |290 |108 ‖|118 |265 |122 |138 |364 | 95
4 AA. | 246 |301 |273 |150 |176 |183 ‖|143 |285 |141 |179 |191 | 66
------+------+----+----+----+----+----+-----+----+----+----+----+----
Means | 294 |273 |316 |187 |252 |140 | 121 |271 |123 |170 |246 |103
------+------+----+----+----+----+----+-----+----+----+----+----+----
1 AAS.| | | | | | | | | | | |
2 AAS.| | | | | | | | | | | |
3 AAS.| | | | | | | | | | | |
4 AAS.| | | | | | | | | | | |
------+------+----+----+----+----+----+-----+----+----+----+----+----
Means | | | | | | | | | | | |
------+------+----+----+----+----+----+-----+----+----+----+----+----
1 C. | 170 |268 |178 |219 |173 |135 ‖ 103 |225 |120 |154 |154 | 85
2 C. | 164 |316 |238 |195 |161 |169 ‖ 148 |171 |156 |150 |128 |109
3 C. | 190 |296 |248 |183 |189 |156 ‖|105 |236 |115 |204 |190 | 71
4 C. | 144 |277 |227 |222 |205 |168 ‖|125 |350 |153 |204 |174 | 66
------+------+----+----+----+----+----+-----+----+----+----+----+----
Means | 167 |304 |223 |205 |182 |157 | 120 |246 |136 |178 |161 | 83
------+------+----+----+----+----+----+-----+----+----+----+----+----
1 N. |}(94){|283 ‖109 |128 |245 | 99 | 119 |205 |146 |225 |245 |120
2 N. |} {|228 ‖286 |224 |193 |151 ‖ 110 |235 |179 |190 |216 |114
| | | | | | | | | | | |
M. | | | ‖ 36 | 94 | 90 ‖ 84 | 85 | 75 | 78 |198 | 46
5 O. |(173) ‖ 68 |113 | 50 | 96 |101 ‖ 71 |110 | 73 | 73 |193 | 41
5 A. | 173 |210 |170 |126 |151 | 68 ‖ 154 |168 |193 |188 |210 | 81
| | | | | | | | | | | |
6 {1 | 120 |200 |144 |116 |152 | 72 | 84 |121 | 88 | 73 | 75 | 51
{2 | 118 |161 |119 | 73 |125 |105 | 81 |127 | 95 | 67 |194 | 65
| | | | | | | | | | | |
7 | 101 |269 | 86 |109 |141 |134 | 121 |260 |147 |190 |208 | 66
------+------+----+----+----+----+----+-----+----+----+----+----+----
1st ten: First ten Years, 1852-’61.
2nd ten: Second ten Years, 1862-’71.
Total Period: Total Period 20 Years, 1852-’71.
+---------------------------------------++---------------------++-----
| Harvests || Average Annual. ||
+----+----+----+----+----+----+----+----++-------+----+--------++
| | | | | | | | || 1st | 2nd| Total ||
|1864|1865|1866|1867|1868|1869|1870|1871|| ten | ten| Period ||Plots
+----+----+----+----+----+----+----+----++-------+----+--------++-----
|lbs.|lbs.|lbs.|lbs.|lbs.|lbs.|lbs.|lbs.|| lbs.| lbs| lbs. ||
| 42 | 47 | 41 | 90 | 21 | 44 | 31 | 48 || 120| 48| 84 || 1 O.
| 69 | 38 | 21 | 53 | 29 | 89 | 18 | 33 || 96| 52| 74 || 2 O.
| 43 | 38 | 38 | 64 | 27 | 70 | 18 | 35 || 101| 46| 74 || 3 O.
| 41 | 28 | 55 | 60 | 25 | 69 | 26 | 48 || 104| 53| 78 || 4 O.
+----+----+----+----+----+----+----+----++-------+----+--------++
| 49 | 38 | 39 | 67 | 25 | 68 | 23 | 41 || 105| 50| 78 ||Means
+----+----+----+----+----+----+----+----++-------+----+--------++
| 99 | 58 | 94 |115 | 49 |139 | 23 |105 || 174| 107| 141 || 1 A.
| 63 | 84 | 64 | 76 | 38 |113 | 26 |189 || 174| 107| 141 || 2 A.
| 83 | 51 |106 | 94 | 34 | 95 | 24 | 89 || 173| 95| 134 || 3 A.
|110 | 60 | 63 | 71 | 50 | 21 | 27 |146 || 165| 78| 122 || 4 A.
+----+----+----+----+----+----+----+----++-------+----+--------++
| 89 | 63 | 82 | 89 | 43 | 92 | 25 |132 || 171| 94| 133 ||Means
+----+----+----+----+----+----+----+----++-------+----+--------++
|110 | 64 |148 |110 ‖ 46 | 64 | 33 |133 || 216| 111| 164 || 1 AA.
| 50 |113 |111 | 69 ‖ 46 | 89 | 24 |168 || 220| 95| 158 || 2 AA.
| 76 | 48 |103 |106 ‖ 59 |111 | 36 |133 || 214| 113| 164 || 3 AA.
| 46 | 76 |133 |119 ‖ 43 | 78 | 30 | 90 || 208| 87| 148 || 4 AA.
+----+----+----+----+----+----+----+----++-------+----+--------++
| 71 | 75 |124 |101 | 48 | 86 | 31 |131 || 215| 102| 159 ||Means
+----+----+----+----+----+----+----+----++-------+----+--------++
‖ 94 | 55 | 88 | 85 ‖ 49 |121 | 33 | 94 || {81| 74| 77} || 1 AAS.
‖ 53 | 86 | 96 | 66 ‖ 64 | 60 | 23 |153 || [1]{75| 75| 75}[1]|| 2 AAS.
‖ 70 | 50 |141 | 79 ‖ 39 |136 | 29 |130 || {85| 84| 85} || 3 AAS.
‖ 93 | 70 | 80 | 93 ‖ 46 |125 | 26 |175 || {84| 93| 89} || 4 AAS.
+----+----+----+----+----+----+----+----++-------+----+--------++
| 77 | 65 |101 | 81 | 50 |111 | 28 |138 || 81| 82| 82 ||Means
+----+----+----+----+----+----+----+----++-------+----+--------++
| 78 | 83 |104 |109 | 43 | 69 | 25 | 78 || 175| 83| 129 || 1 C.
| 92 | 44 | 89 | 89 | 64 |111 | 24 | 88 || 193| 84| 138 || 2 C.
| 90 | 66 | 94 | 91 | 39 | 91 | 37 |141 || 192| 91| 142 || 3 C.
|123 | 69 |128 | 72 | 42 | 67 | 28 |124 || 208| 89| 149 || 4 C.
+----+----+----+----+----+----+----+----++-------+----+--------++
| 96 | 66 |104 | 90 | 47 | 85 | 28 |108 || 192| 87| 139 ||Means
+----+----+----+----+----+----+----+----++-------+----+--------++
| 74 | 98 |124 |119 | 61 |150 | 33 | 99 || {173| 112| 141} || 1 N.
| 95 | 84 |104 | 88 | 35 | 98 | 33 |171 ||[2]{199| 104| 149}[2]|| 2 N.
| | | | | | | | || | | ||
| 58 | 69 | 44 | 56 | 26 | 61 | 25 | 58 || [3](77| 64| 69)[3]|| M.
| 78 | 35 | 48 | 56 | 20 | 75 | 23 | 41 || [4](84| 61| 72)[4]|| 5 O.
| 91 | 94 | 53 | 74 | 33 | 63 | 30 |144 || 160| 87| 124 || 5 A.
| | | | | | | | || | | ||
| 51 | 45 | 72 |103 | 27 | 71 | 26 | 50 || 117| 57| 87 ||1}
| 54 | 47 | 51 | 83 | 21 | 57 | 23 | 41 || 107| 64| 85 ||2}6
| | | | | | | | || | | ||
|117 | 56 |148 |111 | 48 |100 | 26 |171 || 156| 105| 130 || 7
+----+----+----+----+----+----+----+----++-------+----+--------++
[Note 1: Averages of 4 years, 4 years, and 8 years.]
[Note 2: Averages of 9 years, (1853-’61), last 10 years, and total
19 years.]
[Note 3: Averages of 7 years (1855-’61), last 10 years, and total
17 years.]
[Note 4: Averages of 9 years (1853-’61), last 10 years, and total
19 years.]
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.
Table V.--Straw (and chaff) per Acre--cwts.
[N.B. The double vertical lines show that there was a change in the
description, or quantity, of Manure, at the period indicated, for
particulars of which see _Table I._, and foot-notes thereto, p. 231.]
----------------------------------------------------------------------
Harvests
------+-------+----+----+----+----+----+----+----+----+----+----+----+
| | | | | | | | | | | | |
Plots | 1852 |1853|1854|1855|1856|1857|1858|1859|1860|1861|1862|1863|
------+-------+----+----+----+----+----+----+----+----+----+----+----+
| Cwts. |cwt.|cwt.|cwt.|cwt.|cwt.|cwt.|cwt.|cwt.|cwt.|cwt.|cwt.|
1 O. | 16⅝ | 18 | 21¾| 17⅝| 8¾| 12¾| 10⅞| 9⅛| 7½| 11 | 9¾| 11⅜|
2 O. | 16½ | 17⅛| 23¼| 17¾| 8¾| 15⅝| 14⅞| 12¼| 8⅞| 13¼| 12⅞| 15⅝|
3 O. | 16½ | 17¼| 20⅞| 17½| 9⅛| 15 ‖ 12 | 9¾| 8½| 11½| 10⅞| 13⅜|
4 O. | 19½ | 20½| 23⅛| 18 | 9⅜| 17⅛‖ 16 | 12¼| 9⅛| 15⅜| 13½| 15⅜|
+-------+----+----+----+----+----+----+-----+----+----+----+----+
Means | 17¼ | 18¼| 22¼| 17⅝| 9 | 15⅛| 13½| 10⅝| 8⅝| 12¾| 11½| 13⅞|
+-------+----+----+----+----+----+----+-----+----+----+----+----+
1 A. | 22⅞ | 23¾| 30¼| 24⅛| 17⅛| 17¾| 15½| 11½| 14⅞| 19⅝| 20⅜| 21⅜|
2 A. | 26 | 25½| 40⅞| 29⅜| 21½| 26¾| 28¾| 24⅞| 25¼| 29¾| 32⅜| 34 |
3 A. | 23⅝ | 25⅛| 33¾| 27½| 17⅞| 21⅜‖ 17 | 13½| 16¼| 21½| 23¼| 26¼|
4 A. | 27⅞ | 26⅝| 40½| 31 | 21¼| 27⅞‖ 29 | 27¼| 26⅝| 30½| 31⅝| 32 |
+-------+----+----+----+----+----+----+----+----+----+----+----+
Means | 25⅛ | 25¼| 36⅜| 28 | 19½| 23½| 22⅛| 19¼| 20¾| 25⅜| 26¾| 28⅜|
+-------+----+----+----+----+----+----+----+----+----+----+----+
1 AA. | 26⅞ | 26⅛| 37⅞| 32⅛| 24½| 23½‖ 19⅛| 14½| 13½| 22 | 21¼| 25⅛|
2 AA. | 28⅜ | 28⅜| 44⅜| 38⅝| 31⅝| 32⅞‖ 32⅝| 26½| 24¼| 31⅝| 31½| 32½|
3 AA. | 26⅜ | 27¼| 37⅞| 34 | 26⅛| 26 ‖|22⅛| 16⅛| 18⅛| 24⅛| 24¾| 27⅞|
4 AA. | 28⅜ | 31⅝| 49 | 39⅞| 33 | 36¼‖|35¼| 30⅝| 29 | 33⅝| 33⅛| 34¾|
+-------+----+----+----+----+----+----+----+----+----+----+----+
Means | 27½ | 28⅜| 42¼| 36⅛| 28¾| 29⅝| 27½| 21⅞| 21¼| 27⅞| 27⅝| 30 |
+-------+----+----+----+----+----+----+----+----+----+----+----+
1 AAS.| | | | | | | | | | | | |
2 AAS.| | | | | | | | | | | | |
3 AAS.| | | | | | | | | | | | |
4 AAS.| | | | | | | | | | | | |
+-------+----+----+----+----+----+----+----+----+----+----+----+
Means | | | | | | | | | | | | |
+-------+----+----+----+----+----+----+----+----+----+----+----+
1 C. | 24⅝ | 26⅞| 43¼| 36⅛| 26 | 33⅛‖ 30¾| 26⅞| 17⅞| 27⅞| 26 | 28⅝|
2 C. | 23¾ | 25⅝| 44⅛| 36⅛| 31½| 33⅛‖ 33⅞| 28¾| 20⅝| 30⅜| 27¼| 30⅛|
3 C. | 21⅞ | 25¼| 41¼| 35⅞| 26½| 30⅞‖ 30¾| 25⅝| 20⅛| 30¾| 23⅞| 29⅞|
4 C. | 24⅛ | 27½| 42⅛| 37⅝| 30½| 33⅛‖ 35 | 29½| 22¾| 31 | 28⅞| 30¾|
+-------+----+----+----+----+----+----+----+----+----+----+----+
Means | 23½ | 26¼| 42¾| 36½| 28⅝| 32⅝| 32⅝| 27¾| 20⅜| 30 | 26½| 29⅞|
+-------+----+----+----+----+----+----+----+----+----+----+----+
1 N. |}(15¼){| 23⅛| 33⅜| 27 | 19⅝| 24⅝| 20⅛| 18¾| 16¾| 27¼| 24¼| 30¼|
2 N. |} {| 25⅜| 38¼| 33¼| 28¾| 32 ‖ 23⅝| 21¼| 18⅝| 29⅝| 24¾| 29⅞|
| | | | | | | | | | | | |
M. | | | ‖ 15¼| 10⅝| 10⅜ ‖12⅜| 10⅞| 7¼| 15⅛| 14½| 19½|
5 O. | (25⅛) ‖ 15¾| 20¼| 14⅝| 10⅜| 13¼ ‖12½| 10½| 6⅞| 17½| 10½| 15¼|
5 A. | 25⅛ | 24 | 35¾| 31 | 22¾| 27⅝ ‖28⅝| 26⅛| 25½| 31⅞| 31⅝| 34 |
| | | | | | | | | | | | |
6{1 | 17⅛ | 16½| 22½| 18½| 9¼| 16⅛| 12 | 11¼| 7½| 9⅞| 10⅜| 13½|
{2 | 14⅛ | 15⅞| 20¾| 16¾| 9½| 14⅝| 11⅜| 10 | 7¾| 10 | 11⅝| 14⅜|
| | | | | | | | | | | | |
7 | 18½ | 22¾| 37¼| 27½| 19¾| 23⅝| 31⅜| 28½| 25⅜| 31⅝| 34¼| 33⅛|
------+-------+----+----+----+----+----+----+----+----+----+----+----+
1st ten: First ten Years, 1852-’61.
2nd ten: Second ten Years, 1862-’71.
Total Period: Total Period 20 Years, 1852-’71.
---------------------------------------++----------------------++------
Harvests || Average Annual. ||
----+----+----+----+----+----+----+----++-------+------+-------++
| | | | | | | || 1st | 2nd |Total ||
1864|1865|1866|1867|1868|1869|1870|1871|| ten | ten |Period ||Plots
----+----+----+----+----+----+----+----++-------+------+-------++------
cwt.|cwt.|cwt.|cwt.|cwt.|cwt.|cwt.|cwt.|| cwts. | cwts.| cwts. ||
12¾| 8⅛| 9½| 10¼| 11⅝| 11 | 6⅝| 11 || 13⅜ | 10¼ |11¾ ||1 O.
15⅝| 9⅛| 12⅝| 12¼| 9⅜| 10⅜| 8 | 12¼|| 14⅞ | 11⅞ |13⅜ ||2 O.
13⅝| 9¾| 10¼| 10⅛| 8⅝| 11 | 8½| 11¼|| 13⅞ | 10¾ |12¼ ||3 O.
16¾| 10 | 12⅞| 12 | 10⅛| 12⅞| 9⅜| 14 || 16⅛ | 12⅝ |14⅜ ||4 O.
----+----+----+---------+----+----+----++-------+------+-------++------
14⅝| 9¼| 11¼| 11⅛| 9⅞| 11¼| 8⅛| 12⅛|| 14½ | 11⅜ |12⅞ ||Means
----+----+----+---------+----+----+----++-------+------+-------++------
20⅜| 13 | 15⅜| 17¼| 12¼| 18¼| 12½| 23⅛|| 19¾ | 17⅜ |18½ ||1 A.
32½| 21⅝| 28⅛| 28⅝| 19⅜| 32 | 17⅞| 28⅛|| 27⅞ | 27½ |27⅝ ||2 A.
19¼| 16 | 16¾| 19⅜| 14⅞| 20¾| 15 | 25⅜|| 21⅞ | 19¾ |20¾ ||3 A.
34⅞| 22½| 27⅜| 25½| 20⅞| 34⅜| 18⅝| 32½|| 28⅞ | 28 |28½ ||4 A.
----+----+----+----+----+----+----+----++-------+------+-------++------
26¾| 18¼| 21¾| 22⅝| 16¾| 26⅜| 16 | 27¼|| 24½ | 23⅛ |23¾ ||Means
----+----+----+----+----+----+----+----++-------+------+-------++------
23¼| 16 | 17¾| 17⅛‖ 14½| 21½| 17⅞| 26¾|| 24 | 20⅛ |22⅛ ||1 AA.
33⅛| 23 | 28⅛| 30⅞‖ 21⅞| 34⅞| 23¾| 32⅛|| 31⅞ | 29⅛ |30½ ||2 AA.
26⅞| 17 | 18⅛| 20¾‖ 16¼| 22¾| 20⅞| 25⅜|| 25¾ | 22¼ |24 ||3 AA.
37¼| 24⅞| 28¼| 28⅜‖ 25⅝| 38⅛| 18¼| 32⅝|| 34¾ | 30⅛ |32⅜ ||4 AA.
----+----+----+----+----+----+----+----++-------+------+-------++------
30⅛| 20¼| 23⅛| 24¼| 19⅝| 29¼| 20¼| 29¼|| 29 | 25⅜ |27¼ ||Means
+---+----+----+----+----+----+----+----++-------+------+-------++------
‖26⅛| 22⅜| 20⅝| 18½‖ 16⅞| 23¾| 17 | 29¾|| {21⅞| 21⅞ |21⅞} ||1 AAS.
‖33½| 23¼| 30¼| 29½‖ 25¼| 37⅛| 20⅛| 36⅛||[1]{29⅛| 29⅝ |29⅜}[1]||2 AAS.
‖30¼| 20⅜| 25 | 23⅜‖ 22 | 30⅝| 20½| 31⅛|| {24¾| 26⅛ |25⅜} ||3 AAS.
‖40¾| 25½| 29½| 28¼‖ 26⅝| 42½| 20¾| 38 || {31 | 32 |31½} ||4 AAS.
+---+----+----+----+----+----+----+----++-------+------+-------++------
32⅝| 22⅞| 26⅜| 24⅞| 22⅝| 33½| 19⅝| 33¾|| 26⅝ | 27⅜ |27 ||Means
----+----+----+----+----+----+----+----++-------+------+-------++------
26⅛| 21½| 24⅛| 25½| 19⅛| 27 | 17¼| 27½|| 29⅜ | 24¼ |26⅞ ||1 C.
31⅞| 21⅞| 24½| 25⅝| 19⅝| 33⅛| 17⅞| 27⅞|| 30⅞ | 26 |28⅜ ||2 C.
31 | 22 | 24⅜| 22¼| 10¾| 30½| 18⅜| 30⅞|| 28⅞ | 25¼ |27⅛ ||3 C.
34⅞| 22 | 27⅝| 24¼| 21⅛| 35⅛| 20⅜| 32 || 31¼ | 27¾ |29½ ||4 C.
----+----+----+----+----+----+----+----++-------+------+-------++------
31 | 21⅞| 25⅛| 24⅜| 19⅞| 31⅜| 18½| 29⅝|| 30⅛ | 25¾ |28 ||Means
----+----+----+----+----+----+----+----++-------+------+-------++------
24⅛| 18½| 21⅛| 21⅛| 18⅞| 24 | 13¼| 29¼||[2]{23⅜| 22½ |22⅞}[2]||1 N.
27¾| 21½| 23⅞| 21¾| 17⅛| 27⅝| 19⅛| 31½|| {27⅞| 24½ |26⅛} ||2 N.
| | | | | | | || | | ||
13⅞| 9⅜| 12⅜| 12 | 10⅛| 11⅝| 8⅞| 14¾||[3](11¾| 12¾ |12⅜)[3]|| M.
14⅞| 10¾| 10⅝| 10⅜| 8½| 15½| 4⅜| 13⅛||[4](13⅝| 11⅜ |12⅜)[4]||5 O.
33⅞| 24⅞| 28 | 22⅜| 20⅝| 36⅛| 21⅜| 29⅝|| 27⅞| 28¼ |28 ||5 A.
| | | | | | | || | | ||
13⅝| 8¾| 10½| 9⅜| 10½| 9⅞| 7¾| 13 || 14 | 10¾ |12⅜ ||1}6
13⅞| 8⅞| 9½| 10⅞| 10⅞| 10⅜| 7⅞| 13⅝|| 13 | 11¼ |12⅛ ||2}
| | | | | | | || | | ||
37⅜| 25⅜| 31½| 27⅛| 24½| 28¾| 19¾| 37⅛|| 26⅝| 29⅞ |28¼ || 7
----+----+----+----+----+----+----+----++-------+------+-------++------
[Note 1: Averages of 4 years, 4 years, and 8 years.]
[Note 2: Averages of 9 years, (1853-’61), last 10 years, and total
19 years.]
[Note 3: Averages of 7 years (1855-’61), last 10 years, and total
17 years.]
[Note 4: Averages of 9 years (1853-’61), last 10 years, and total
19 years.]
The produce of barley the first season (1852), was, per acre:
On the unmanured plot 27¼ bushels
With superphosphate of lime 28⅝ ”
” potash, soda, and magnesia 26¼ ”
” ” ” ” and superphosphate 32¾ ”
” 14 tons barn-yard manure 33 ”
” 200 lbs. ammonia-salts alone 36⅞ ”
” ” ” and superphosphate 38⅝ ”
” ” ” and potash, soda, and magnesia 36 ”
” ” ” and superphosphate, potash,
soda, and magnesia 40¾ ”
” 400 lbs. ammonia-salts alone 44½ ”
The 200 lbs. of ammonia-salts contain 50 lbs. of ammonia = 41 lbs.
nitrogen.
It will be seen that this 50 lbs. of ammonia alone, on plot 1_a_, gives
an increase of nearly 10 bushels per acre, or to be more accurate, it
gives an increase over the unmanured plot of 503 lbs. of grain, and 329
lbs. of straw, while double the quantity of ammonia on plot 1_a.a._,
gives an increase of 17¼ bushels per acre--or an increase of 901 lbs. of
grain, and 1,144 lbs. of straw.
“Put that fact in separate lines, side by side,” said the Deacon, “so
that we can see it.”
Total
Grain Straw Produce.
50 lbs. of ammonia gives an increase of 503 lbs. 704 lbs. 1207 lbs.
100 ” ” ” ” ” ” ” 901 ” 1144 ” 2045 ”
The first 50 lbs. of ammonia gives an
increase of 503 ” 704 ” 1207 ”
The second 50 lbs. of ammonia gives an
increase of 398 ” 540 ” 738 ”
“That shows,” said the Deacon, “that a dressing of 50 lbs. per acre pays
better than a dressing of 100 lbs. per acre. I wish Mr. Lawes had sown
75 lbs. on one plot.”
I wish so, too, but it is quite probable that in our climate, 50 lbs. of
available ammonia per acre is all that it will usually be profitable to
apply per acre to the barley crop. It is equal to a dressing of 500 lbs.
guaranteed Peruvian guano, or 275 lbs. nitrate of soda. --“Or to how
much manure?” asked the Deacon.
To about 5 tons of average stable-manure, or say three tons of good,
well-rotted manure from grain-fed animals.
“And yet,” said the Deacon, “Mr. Lawes put on 14 tons of yard manure per
acre, and the yield of barley was not as much as from the 50 lbs. of
ammonia alone. How do you account for that?”
Simply because the ammonia in the manure is _not_ ammonia. It is what
the chemists used to call “potential ammonia.” A good deal of it is in
the form of undigested straw and hay. The nitrogenous matter of the food
which has been digested by the animal and thrown off in the liquid
excrements, is in such a form that it will readily ferment and produce
ammonia, while the nitrogenous matter in the undigested food and in the
straw used for bedding, decomposes slowly even under the most favorable
conditions; and if buried while fresh in a clay soil, it probably would
not all decompose in many years. But we will not discuss this at
present.
“The superphosphate does not seem to have done much good,” said the
Deacon; “3½ cwt. per acre gives an increase of less than two bushels per
acre. And I suppose it was _good_ superphosphate.”
There need be no doubt on that point. Better superphosphate of lime
cannot be made. But you must recollect that this is pure superphosphate
made from burnt bones. It contains no ammonia or organic matter.
Commercial superphosphates contain more or less ammonia, and had they
been used in these experiments, they would have shown a better result
than the pure article. They would have done good in proportion to the
available nitrogen they contained. If these experiments prove anything,
they clearly indicate that superphosphate alone is a very poor manure
for either wheat or barley.
The _second_ year, the unmanured plot gave 25¾ bushels per acre. Potash,
soda, and magnesia, (or what the Deacon calls “ashes,”) 27⅝ bushels;
superphosphate 33½, and “ashes” and superphosphate, nearly 36 bushels
per acre.
50 lbs. of ammonia, alone, gives nearly 39 bushels, and ammonia and
superphosphate together, 40 bushels.
The superphosphate and “ashes” give a better account of themselves this
year; but it is remarkable that the ammonia alone, gives almost as good
a crop as the ammonia and superphosphate, and a _better_ crop than the
ammonia and “ashes,” or the ammonia, superphosphate, and ashes,
together.
The 14 tons farm-yard manure gives over 36 bushels per acre. This plot
has now had 28 tons of manure per acre, yet the 50 lbs. of ammonia
alone, still gives a better yield than this heavy dressing of manure.
The _third_ season (1854), was quite favorable for the ripening of wheat
and barley. The seed on the experimental barley-field, was sown Feb. 24,
and the harvest was late; so that the crop had an unusually long season
for growth. It was one of the years when even poor land, if clean, gives
SOURCES & PROVENANCE
1 listed
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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.