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BARNYARD MANUREHello, it's time for Ahli Artikel to share an article about Barnyard Manure, please read below.
Barnyard Manure
Value of Manure
Approximately a billion tons of manure are produced annually by livestock on American farms, but only about one fourth to one third of its potential value is taken up by cropland and pastureland. The remainder is lost by misplacement, drainage, leaching, or fermentation.
Value of Manure
Approximately a billion tons of manure are produced annually by livestock on American farms, but only about one fourth to one third of its potential value is taken up by cropland and pastureland. The remainder is lost by misplacement, drainage, leaching, or fermentation.
Farm manure is a mixture of animal excrements and stable litter. Its value for maintenance of soil productivity has been recognized since very early times. Manure brings about soil improvement because it contains fertilizer materials and possibly certain growth-promoting organic constituents, and because it adds humus to the soil.
Composition of Manure
Manure exposed to rain may lose a large proportion of the nitrogen, phosphorus, and potash by leaching.
Comparisons of equal weights of fresh and rotted manure as fertilizer invariably favor the rotted product. Manure increases in concentration of nutrients with rotting. This increase is obtained by the loss of nitrogen. The claim that rotted manure does not burn the crop merely reflects the fact that the highly available ammonia nitrogen has been sacrificed in the rotting process.
Application of Manure
Maximum returns from manuring are obtained when certain facts are recognized:
1. Manure is relatively deficient in phosphoric acid, a ton being equivalent to 100 pounds of 3-5-10 or 4-5-10 commercial fertilizer. A phosphorus supplement often is profitable.
Maximum returns from manuring are obtained when certain facts are recognized:
1. Manure is relatively deficient in phosphoric acid, a ton being equivalent to 100 pounds of 3-5-10 or 4-5-10 commercial fertilizer. A phosphorus supplement often is profitable.
2. Returns from a given quantity of manure usually are greater with lighter application to a larger area. The common rate of eight tons per acre is equivalent in value to 1.000 pounds of a 20-unit mixed fertilizer. Residual effects beyond the first year are greater with heavier applications.
3. Because of serious storage losses during the summer months, manure should be applied to spring crops rather than held in storage for fall application.
4. Top dressing may result in improved stands of grass and legume seedlings despite the loss of available nitrogen from the manure.
5. Often a supplementary application of fertilizer in the hill or now is much more economical than the excessive amount of manure that would be required to meet the early demands of the crops equally well.
6. The greatest profit may be expected from application to crops of high acre value, and to rotations that include such crops as tobacco or potatoes. Corn responds well to manure.
7. The returns from a ton of manure applied to land that is low in fertility may be expected to be greater than from an equal quantity applied to land already highly productive.
8. It sometimes is more economical to purchase and apply commercial fertilizers than to hire labor to load, haul, and spread barnyard manure and then later apply the necessary supplemental mineral fertilizers.
Manuring of semiarid land usually results in an increase in average total crop yield. However, in grain yield, manure usually produces increases only in wet years, with decreases in dry years and little or no benefit in average seasons. Thus in dryland regions, manure should be applied to fields to be planted to forage crops such as sorghum.
And that some explanations articles on Barnyard Manure. Hopefully can improve the knowledge of the reader. . .
HAPPY LEARNING. . . .
SOURCE:
Manuring of semiarid land usually results in an increase in average total crop yield. However, in grain yield, manure usually produces increases only in wet years, with decreases in dry years and little or no benefit in average seasons. Thus in dryland regions, manure should be applied to fields to be planted to forage crops such as sorghum.
And that some explanations articles on Barnyard Manure. Hopefully can improve the knowledge of the reader. . .
HAPPY LEARNING. . . .
SOURCE:
Book Principles of Field Crop Production | John H. Martin - Warren H. Leonard | COLLIER Macmillan (1967)
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