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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 TEXT

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Page 2 4 matches 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 Page 3 2 matches 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. Page 4 3 matches 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 Page 6 1 match 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 Page 7 7 matches 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 Page 8 5 matches 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 Page 9 2 matches 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 Page 10 1 match 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 Page 11 9 matches 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 Page 12 2 matches 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 Page 13 14 matches 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 Page 14 3 matches 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 Page 15 6 matches 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 Page 16 3 matches implements 65.00 Average repairs of place and buildings 175.00 Average depreciation and interest on stock 180.00 In Page 19 4 matches 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 Page 20 5 matches 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 Page 21 7 matches 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 Page 22 8 matches hed, when very nearly dry: Lbs. Surface, six inches 2,407,900 Next ” 2,444,200 Third ” 2,480,500 “ Page 23 1 match 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. Page 24 3 matches 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 Page 25 2 matches 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 Page 26 5 matches 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, Page 27 1 match 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 Page 31 1 match 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 Page 32 9 matches 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 Page 33 1 match 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 Page 36 1 match 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 Page 38 2 matches 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 Page 39 8 matches 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 Page 40 7 matches 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, Page 41 4 matches 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 Page 42 1 match 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 Page 43 4 matches 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 Page 44 3 matches 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 Page 45 3 matches 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 Page 46 4 matches 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 Page 47 2 matches 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 Page 48 9 matches 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 Page 49 8 matches 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 Page 50 1 match |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| Page 51 1 match 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 Page 52 3 matches by Growing, 133-163 ” Letting it Rot on the Surface as Manure, 134 ” Nitrogen as a Manure for, 141 ” Pastu Page 53 1 match uperphosphate of Lime, When First Made in the United States, 324 Surface Application of Manure, 70-268 Swamp-muck, Page 54 2 matches 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
of the experiments, and shows us how effectually the preceding crop had, 19929 characters on this page
of the experiments, and shows us how effectually the preceding crop had, in a practical point of view, reduced the plots, previously so differently circumstanced both as to manure and produce, to something like an uniform standard as regards their grain-producing qualities. “Plot 2 has, as before, 14 tons of farm-yard manure, and the produce is 27¼ bushels, or between 9 and 10 bushels more than without manure of any kind. “On plot 10_a_, which in the previous year gave by ammoniacal salts alone, a produce equal to that of the farm-yard manure, we have again a similar result: for two cwts. of sulphate of ammonia has now given 1,850 lbs. of total corn, instead of 1,826 lbs., which is the produce on plot 2. The straw of the latter, is, however, slightly heavier than that by the ammoniacal salt. “Again, plot 5_a_, which was in the previous season _unmanured_, was now subdivided: on one-half of it (namely, 5_a_1) we have the ashes of wheat-straw alone, by which there is an increase of rather more than one bushel per acre of dressed corn; on the other half (or 5_a_2) we have, besides the straw-ashes, two cwts. of sulphate of ammonia put on as a top-dressing: two cwts. of sulphate of ammonia have, in this case, only increased the produce beyond that of 5_a_1 by 7⅞ bushels of corn and 768 lbs. of straw, instead of by 9¾ bushels 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 former case the ammoniacal salts were top-dressed, but in the latter they were drilled at the time of sowing the seed; and it will be remembered that in 1845 the result was better _as to corn_ on plot 9, where the salts were sown earlier, than on plot 10, where the top-dressing extended far into the spring. We have had several direct instances of this kind in our experience, and we would give it as a suggestion, in most cases applicable, that manures for wheat, and especially ammoniacal ones, should be applied before or at the time the seed is sown; for, although the apparent luxuriance of the crop is greater, and the produce of straw really heavier, by spring rather than autumn sowings of Peruvian guano and other ammoniacal manures, yet we believe that that of the _corn_ will not be increased in an equivalent degree. Indeed, the success of the crop undoubtedly depends very materially on the progress of the underground growth during the winter months; and this again, other things being equal, upon the quantity of available nitrogenous constituents within the soil, without a liberal provision of which, the range of the fibrous feeders of the plant will not be such, as to take up the minerals which the soil is competent to supply, and in such quantity as will be required during the after progress of the plant for its healthy and favorable growth.” These remarks are very suggestive and deserve special attention. “The next result to be noticed,” continue Messrs. Lawes and Gilbert, “is that obtained on plot 6, now also divided into two equal portions designated respectively 6_a_ and 6_b_. Plot No. 6 had for the crop of 1844, superphosphate of lime and the phosphate of magnesia manure, and for that of 1845, superphosphate of lime, rape-cake, and ammoniacal salts. For this, the third season, it was devoted to the trial of the wheat-manure manufactured under the sanction of Professor Liebig, and patented in this country. “Upon plots 6_a_, four cwts. per acre of the patent wheat-manure were used, which gave 20¼ bushels, or rather more than two bushels beyond the produce of the unmanured plot; but as the manure contained, besides the minerals peculiar to it, some nitrogenous compounds, giving off a very perceptible odor of ammonia, some, at least, of the increase would be due to that substance. On plot 6_b_, however, the further addition of one cwt. each of sulphate and muriate of ammonia to this so-called ‘Mineral Manure,’ gives a produce of 29¼ bushels. In other words, the addition of ammoniacal salt, to Liebig’s mineral manure has increased the produce by very nearly 9 bushels per acre beyond that of the mineral manure alone, whilst the increase obtained over the unmanured plot, by 14 tons of farm-yard manure, was only 9¼ bushels! The following table gives the results of the experiments the _fourth_ year, 1846-7. Experiments at Rothamsted on the Growth of Wheat, Year After Year, on the Same Land. Table IV.--Manures and Produce; 4th Season, 1846-7. Manures and Seed (Old Red Lammas), Sown End of October, 1846. Manures FM Farm-yard Manure. PG Peruvian Guano. B-A Bone-ash. SAc Sulphuric Acid (Sp. gr. 1-7.) MAc Muriatic Acid. SAm Sulphate of Ammonia. MAm Muriate of Ammonia. R Rice. -----+--------------------------------------------------------+ | Manures per Acre. | P +-------+------+--------------------+------+------+------+ l | | | Superphosphate | | | | o | | | of Lime | | | | t | | +------+------+------+ | | | s | FM | PG | B-A | SAc | MAc | SAm | MAm | R | -----+-------+------+------+------+------+------+------+------+ | Tons. | lbs. | lbs. | lbs. | lbs. | lbs. | lbs. | lbs. | 0 | .. | 500 | .. | .. | .. | .. | .. | .. | 1 | .. | .. | 200 | .. | 200 | 350 | 50 | .. | 2 | 14 | .. | .. | .. | .. | .. | .. | .. | 3 | Unmanured. | .. | .. | .. | .. | .. | .. | | | | | | | | | | 4 | .. | .. | 200 | .. | 200 | 300 | .. | .. | | | | | | | | | | 5a | .. | .. | 200 | 200 | .. | 150 | 150 | .. | 5b | .. | .. | 200 | 200 | .. | 150 | 150 | 500 | 6a | .. | .. | .. | .. | .. | 150 | 150 | .. | 6b | .. | .. | .. | .. | .. | 150 | 150 | .. | 7a | .. | .. | .. | .. | .. | 150 | 150 | .. | 7b | .. | .. | .. | .. | .. | 150 | 150 | .. | | | | | | | | | | 8a | .. | .. | 200 | 200 | .. | 150 | 150 | 500 | 8b | .. | .. | 200 | 200 | .. | 200 | 200 | .. | 9a{1| .. | .. | .. | .. | .. | .. | .. |2240 | {2| .. | .. | .. | .. | .. | 150 | 150 | .. | 9b | .. | .. | .. | .. | .. | 150 | 150 | .. | 10a | .. | .. | .. | .. | .. | 150 | 150 | .. | 10b | .. | .. | .. | .. | .. | 150 | 150 | .. | | | | | | | | | | 11a | .. | .. | 100 | 100 | .. | 150 | 150 | .. | 11b | .. | .. | 100 | 100 | .. | 150 | 150 | .. | 12a | .. | .. | 100 | 100 | .. | 150 | 150 | .. | 12b | .. | .. | 100 | 100 | .. | 150 | 150 | .. | 13a | .. | .. | 100 | 100 | .. | 150 | 150 | .. | 13b | .. | .. | 100 | 100 | .. | 150 | 150 | .. | 14a | .. | .. | 100 | 100 | .. | 150 | 150 | .. | 14b | .. | .. | 100 | 100 | .. | 150 | 150 | .. | | | | | | | | | | 15a | .. | .. | 200 | .. | 200 | 300 | .. | 500 | 15b | .. | .. | 200 | .. | 200 | 300 | .. | 500 | | | | | | | | | | 16a | .. | .. | 100 | 100 | .. | 150 | 150 | .. | 16b | .. | .. | 100 | 100 | .. | 150 | 150 | .. | 17a | .. | .. | 100 | 100 | .. | 150 | 150 | .. | 17b | .. | .. | 100 | 100 | .. | 200 | 200 | .. | 18a | .. | .. | 100 | 100 | .. | 150 | 150 | .. | 18b | .. | .. | 100 | 100 | .. | 150 | 150 | .. | | | | | | | | | | 19 | .. | .. | 100 | .. | 100 | 300 | .. | 500 | 20 | Unmanured. | .. | .. | .. | .. | .. | .. | 21 }| Mixture of the residue of most of the | .. | .. | 22 }| other manures. | .. | .. | -----+-------+------+------+------+------+------+------+------+ Produce Wt/Bu Weight per Bushel. OC Offal Corn. TC Total Corn. S&C Straw and Chaff. TP/C&S Total Produce (Corn and Straw.) C Corn. TP Total Produce. OCD Offal Corn to 100 Dressed. C100 Corn to 100 Straw. -----------------------------------+-----------------+-----+-----+---- | Increase per | | | Produce per Acre, &c. | Acre By Manure. | | | P --------------+----+----+-----+----+-----+-----+-----+ | | l Dressed Corn.| | | | | | | | | | o --------+-----+ | | | TP | | | | | | t Qty. |Wt/Bu| OC | TC | S&C |C&S | C | S&C | TP | OCD |C100 | s --------+-----+----+----+-----+----+-----+-----+-----+-----+-----+---- Bu. Pks.|lbs. |lbs.|lbs.|lbs. |lbs.|lbs. |lbs. |lbs. | | | 30 2¾ |61.1 | 156|2031|3277 |5308| 908 |1375 |2283 | 8.2 |61.9 | 0 32 1 |61.2 | 147|2119|3735 |5854| 996 |1833 |2829 | 7.2 |56.7 | 1 29 3¾ |62.3 | 117|1981|3628 |5609| 858 |1726 |2584 | 6.2 |54.6 | 2 16 3½ |61.0 | 95|1123|1902 |3025| .. | .. | .. | 8.9 |59.0 | 3 | | | | | | | | | | | 27 1¾ |61.9 | 82|1780|2948 |4728| 657 |1046 |1703 | 4.7 |60.3 | 4 | | | | | | | | | | | 29 0 |61.8 | 130|1921|3412 |5333| 798 |1510 |2309 | 7.1 |56.3 | 5a 32 2 |61.4 | 136|2132|3721 |5853|1009 |1819 |2827 | 6.6 |57.2 | 5b 24 3¼ |62.1 | 122|1663|2786 |4449| 540 | 884 |1124 | 7.8 |59.6 | 6a 24 1¾ |61.6 | 127|1632|2803 |4435| 509 | 901 |1410 | 8.2 |58.2 | 6b 27 3¼ |61.7 | 118|1834|3151 |4985| 711 |1249 |1960 | 6.8 |58.2 | 7a 25 1¼ |61.5 | 125|1682|2953 |4635| 559 |1051 |1610 | 7.9 |56.9 | 7b | | | | | | | | | | | 32 1¾ |62.1 | 102|2115|3683 |5798| 992 |1781 |2773 | 5.5 |57.4 | 8a 30 3 |61.7 | 123|2020|3720 |5740| 897 |1818 |2715 | 6.5 |54.3 | 8b 22 3 |62.5 | .. |1477|2506 |3983| 228 | 604 | .. | .. |53.9 |1}9a 26 2 |61.0 | .. |1755|3052 |4807| 632 |1150 | .. | .. |57.5 |2} 26 0 |61.3 | 123|1717|2858 |4575| 594 | 956 |1550 | .. |60.1 | 9b 25 3 |61.5 | 118|1702|2891 |4593| 579 | 989 |1568 | 7.3 |58.8 | 10a 25 2¾ |61.2 | 133|1705|2874 |4579| 582 | 972 |1554 | 8.2 |59.3 | 10b | | | | | | | | | | | 30 3½ |61.6 | 142|2044|3517 |5561| 921 |1615 |2536 | 6.3 |59.5 | 11a 29 1¾ |61.8 | 123|1941|3203 |5144| 818 |1301 |2119 | 6.7 |60.6 | 11b 29 2 |62.0 | 124|1953|3452 |5405| 830 |1550 |2380 | 6.6 |57.1 | 12a 27 0½ |61.8 | 121|1796|3124 |4920| 673 |1222 |1895 | 7.1 |57.4 | 12b 20 2½ |62.5 | 108|1959|3306 |5265| 836 |1404 |2240 | 5.5 |57.3 | 13a 27 1¼ |62.3 | 96|1801|3171 |4972| 678 |1269 |1947 | 5.3 |56.7 | 13b 28 0¾ |62.8 | 175|1944|3362 |5306| 821 |1460 |2281 | 9.7 |59.5 | 14a 26 3¾ |62.8 | 166|1856|3006 |4862| 733 |1104 |1837 | 9.8 |61.7 | 14b | | | | | | | | | | | 32 3 |63.0 | 151|2214|3876 |6090|1091 |1974 |3065 | 7.2 |57.1 | 15a 32 0 |62.6 | 137|2140|3617 |5757|1017 |1715 |2732 | 6.6 |59.1 | 15b | | | | | | | | | | | 29 1¼ |62.3 | 132|1959|3417 |5376| 836 |1515 |2351 | 6.9 |57.3 | 16a 34 2¼ |62.6 | 119|2283|4012 |6295|1160 |2110 |3270 | 5.2 |56.9 | 16b 33 3 |62.3 | 119|2222|4027 |6249|1099 |2125 |3224 | 5.6 |55.1 | 17a 35 1¼ |62.0 | 117|2314|4261 |6575|1191 |2359 |3550 | 6.4 |54.3 | 17b 32 0¾ |62.7 | 142|2160|3852 |6012|1037 |1950 |2987 | 6.9 |56.0 | 18a 29 1½ |62.9 | 181|2029|4164 |6193| 906 |2262 |3168 | 9.7 |48.7 | 18b | | | | | | | | | | | 32 3 |62.8 | 140|2195|4202 |6397|1072 |2300 |3372 | 6.7 |52.2 | 19 20 0¾ |62.5 | 70|1332|2074 |3406| 209 | 172 | 381 | 4.9 |64.2 | 20 .. .. | .. | .. | .. | .. | .. | .. | .. | .. | .. | .. |}21 | | | | | | | | | | |}22 --------+-----+----+----+-----+----+-----+-----+-----+-----+-----+---- Here again, I want the Deacon to look at plot 0, where 500 lbs. Peruvian guano, sown in October, gives an _increase_ of nearly 14 bushels of dressed wheat and 1,375 lbs. of straw per acre. On plot 2, where 14 tons of barn-yard manure have now been applied four years in succession (56 tons in all), there is a little more straw, but not quite so much grain, as from the 500 lbs. of guano. “But will the guano,” said the Deacon, “be as lasting as the manure?” “Not for wheat,” said I. “But if you seed the wheat down with clover, as would be the case in this section, we should get considerable benefit, probably, from the guano. If wheat was sown after the wheat, the guano applied the previous season would do little good on the second crop of wheat. And yet it is a matter of fact that there would be a considerable proportion of the guano left in the soil. The wheat cannot take it up. But the clover can. And we all know that if we can grow good crops of clover, plowing it under, or feeding it out on the land, or making it into hay and saving the manure obtained from it, we shall thus be enabled to raise good crops of wheat, barley, oats, potatoes, and corn, and in this sense guano is a ‘lasting’ manure.” “Barnyard-manure,” said the Doctor, “is altogether too ‘lasting.’ Here we have had 56 tons of manure on an acre of land in four years, and yet an acre dressed with 500 lbs. of guano produces just as good a crop. The manure contains far more plant-food, of all kinds, than the guano, but it is so ‘lasting’ that it does not do half as much good as its composition would lead us to expect. Its ‘lasting’ properties are a decided objection, rather than an advantage. If we could make it less lasting--in other words, if we could make it act quicker, it would produce a greater effect, and possess a greater value. In proportion to its constituents, the barn-yard manure is far cheaper than the guano, but it has a less beneficial effect, because these constituents are not more completely decomposed and rendered available.” “That,” said I, “opens up a very important question. We have more real value in manure than most of us are as yet able to bring out and turn to good account. The sandy-land farmer has an advantage over the clay-land farmer in this respect. The latter has a naturally richer soil, but it costs him more to work it, and manure does not act so rapidly. The clay-land farmer should use his best endeavors to decompose his manure.” “Yes,” said the Doctor, “and, like John Johnston, he will probably find 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, will do much to render its constituents available. But let us return to Mr. Lawes’ wonderful experiments.” “On eight plots,” said I, “300 lbs. of ammonia-salts were used without any other manures, and the _average_ yield on these eight plots was nearly 26 bushels per acre, or an average increase of 9 bushels per acre. The same amount of ammonia-salts, with the addition of superphosphate of lime, gave an increase of 13 bushels per acre. 400 lbs. ammonia salts, with superphosphate of lime, gave an _increase_ of nearly 16 bushels per acre, or three bushels per acre more than where 14 tons of barn-yard manure had been used four years in succession. “I hope, after this, the Deacon will forgive me for dwelling on the value of available nitrogen or ammonia as a manure for wheat.” “I see,” said the Deacon, “that ground _rice_ was used this year for manure; and in 1845, _tapioca_ was also used as a manure. The Connecticut Tobacco growers a few years since used _corn-meal_ for manure, and you thought it a great waste of good food.” I think so still. But we will not discuss the matter now. Mr. Lawes wanted to ascertain whether _carbonaceous_ matter was needed by the growing wheat-plants, or whether they could get all they needed from the soil and the atmosphere. The enormous quantities of carbonaceous matter supplied by the barn-yard manure, it is quite evident, are of little value as a manure for wheat. And the rice seems to have done very little more good than we should expect from the 22 lbs. of nitrogen which it contained. The large quantity of carbonaceous matter evidently did little good. Available carbonaceous matter, such as starch, sugar, and oil, was intended as food for man and beast--not as food for wheat or tobacco. The following table gives the results of the experiments the _fifth_ year, 1847-8. Experiments at Rothamsted on the Growth of Wheat, Year After Year, on the Same Land. Table V.--Manures and Produce; 5th Season, 1847-8. Manures and Seed (Old Red Lammas), Sown Autumn, 1847. Manures FM Farm-yard Manure. P-A Pearl-ash. S-A Soda-ash. SMg Sulphate of Magnesia. SPL Superphosphate of Lime. B-A Bone-ash. SAc Sulphuric Acid (Sp. gr. 1.7.) MAc Muriatic Acid. SAm Sulphate of Ammonia. MAm Muriate of Ammonia. RC Rape-Cake. ---+-----------------------------------------------------------------+ | Manure per Acre, etc. | P +-----+-----+-----+-----+-----+-----------------------+-----+-----+ l | | | | | | Superphosphate | | | o | | | | | | of Lime. | | | t | | | | | +-----+-----+-----+-----+ | | s | FM | P-A | S-A | SMg | SPL | B-A | SAc | MAc | SAm | MAm | RC | ---+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+ | Tons|lbs. |lbs. |lbs. |lbs. |lbs. |lbs. |lbs. |lbs. |lbs. |lbs. | 0 | .. | .. | .. | .. |2240 | .. | .. | .. | .. | .. | .. | 1 | .. | .. | .. | .. | .. | .. | .. | .. | .. | .. | .. | 2 | 14| .. | .. | .. | .. | .. | .. | .. | .. | .. | .. | 3 | Unmanured.| .. | .. | .. | .. | .. | .. | .. | .. | .. | | | | | | | | | | | | | 4 | .. | .. | .. | .. | .. | 200 | .. | 200 | 300 | .. | .. | | | | | | | | | | | | | 5 | .. | 300 | 200 | 100 | .. | 200 | 150 | .. | 250 | 250 | .. | 5 | .. | 300 | 200 | 100 | .. | 200 | 150 | .. | 200 | 200 | 500 | 6 | .. | .. | .. | .. | .. | 400 | 300 | .. | 200 | 200 | .. | 6 | .. | .. | .. | .. | .. | 200 | 150 | .. | 200 | 200 | .. | 7 | .. | .. | .. | .. | .. | 400 | 300 | .. | 150 | 150 | 500 | 7 | .. | .. | .. | .. | .. | 200 | 150 | .. | 150 | 150 | 500 | | | | | | | | | | | | | 8 | .. | 300 | 200 | 100 | .. | 200 | 150 | .. | .. | .. | .. | 8 | .. | 300 | 200 | 100 | .. | 200 | 150 | .. | .. | .. | .. | 9 | .. | .. | .. | .. | .. | 200 | 150 | .. | .. | .. | .. | 9 | .. | .. | .. | .. | .. | 200 | 150 | .. | 150 | 150 | .. | 10 | .. | .. | .. | .. | .. | .. | .. | .. | 150 | 150 | .. | 10 | .. | 300 | 200 | 100 | .. | 200 | 150 | .. | 150 | 150 | .. | | | | | | | | | | | | .. | 11 | .. | .. | .. | .. | .. | 200 | 150 | .. | 150 | 150 | 500 |
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