Effect of fertilization on soil
Pharmaceutical Intermediate,Food Grade L-Valine,Mino Acids Powder Nutricorn Feed Additives ,Choline Chloride,Corn Products Co., Ltd. , http://www.sdbiotechnology.com
March 30 23:13:35, 2019
Effect of fertilization on soil 1. Increase soil nutrients All fertilizers can increase soil nutrients to meet the needs of crop growth for nutrients. Most of the chemical fertilizers are easily dissolved, and after the application, the soil can be absorbed and stored, and the crop can be immediately absorbed. Organic fertilizers, with the exception of a small amount of nutrients that can be directly absorbed by crops, must be decomposed by microorganisms before they can be used by crops. During the decomposition process of organic fertilizers, various organic and inorganic acids are produced, which can promote the dissolution of some insoluble mineral nutrients in the soil and increase the content of effective nutrients in the soil. 2. Improve Soil Structure Applying organic fertilizers and fertilizers containing more calcium, in addition to increasing soil nutrients, can also promote the formation of soil aggregates. 3, to improve the soil water and heat conditions Generally organic matter has the ability to absorb and retain water, humus is a hydrophilic colloid, water retention ability is stronger. Humic substances are brown-black substances, which can increase the absorption of solar thermal energy and help increase the soil temperature. At the same time, humus has a strong water-holding capacity, a high specific heat, a small thermal conductivity, and a slow change in soil temperature, which is favorable for crop growth. 4. Increase of physiologically active substances The application of organic fertilizers can promote the activity of soil microorganisms, increase the mineral nutrients and humus of the soil, and also produce various vitamins, antibiotics, auxins, etc., promote root development, stimulate crop growth, and increase disease resistance. ability. Excerpted from China Agricultural Press>