A: refers to materials added to the soil to improve the physical and/or chemical properties of the soil, and/or its biological activity. According to different functions, it can be divided into: agglomerated dispersed soil particles, soil cementing agent for improving soil structure; soil stabilizer for fixing topsoil and preventing soil erosion; soil acid regulating agent for adjusting soil pH; soil warming for increasing soil temperature a soil water retaining agent that maintains soil moisture.
China has a large area of ​​low-yield fields and adverse soils. In recent years, due to improper application of chemical fertilizers, the input of organic fertilizer has decreased, and many farmland traits have deteriorated, and soil fertility has shown a downward trend. In this case, in addition to improving soil fertility through rational fertilization and tillage, the scientific use of soil conditioners is also an effective measure. It can improve soil and improve soil fertility. Although it does not directly provide nutrients to crops, it provides favorable conditions for improving plant nutrition.
The selection of conditioning agents mainly depends on the soil improvement target of the conditioning agent, the soil improvement effect and the material characteristics. Specifically consider the following aspects:
The material characteristics of the conditioner. In the case of natural resource conditioners, the application rate can be larger and the range of suitable dosages is wider; while synthetic conditioning agents are much less expensive due to higher potency and cost. For example, an appropriate amount of aqueous ammonia was added weathered coal or bicarbonate for composting soil fertility, per acre application rate of 30 ~ 100kg, dustable Shi Hougeng turned furrow or buried, fertilizing; polyacrylamides to increase soil The agglomerate structure is the main purpose, and the suitable dosage is generally 1.33 to 13.3 kg. It can be sprayed on the surface or dry in the topsoil, and mixed with a disc. It should be noted that the amount of conditioning agent is not effective, and the cost is increased, and the opposite effect may be obtained.
Conditioning conditions of the conditioning agent. Soil conditions have a great influence on the application effect of the conditioning agent. Spreading influence of soil moisture uniformity conditioners, soil moisture content is too high, poor farming difficult field operations, and difficult to Hunban uniform; good soil texture influence of agents on soil particles reunion, reunion clay than sand effect The high content of organic matter is better than the low content. Buy or applying soil conditioner improving soil needs to consider not only, but also consider the economic conditions and capabilities. First, make full use of cheap natural resources such as peat/stalks and minerals such as lime and gypsum. However, organic materials and large amounts of natural minerals, nearby and development, the nearest administration.
How to face the new products. In recent years, there have been new products come out of the soil conditioner, be careful before purchasing genuine understanding and characteristics of the product, according to the instructions carefully to do when administered.
(Senior Consultant of Sinofert, Professor of China Agricultural University Wang Xingren)
China has a large area of ​​low-yield fields and adverse soils. In recent years, due to improper application of chemical fertilizers, the input of organic fertilizer has decreased, and many farmland traits have deteriorated, and soil fertility has shown a downward trend. In this case, in addition to improving soil fertility through rational fertilization and tillage, the scientific use of soil conditioners is also an effective measure. It can improve soil and improve soil fertility. Although it does not directly provide nutrients to crops, it provides favorable conditions for improving plant nutrition.
The selection of conditioning agents mainly depends on the soil improvement target of the conditioning agent, the soil improvement effect and the material characteristics. Specifically consider the following aspects:
The material characteristics of the conditioner. In the case of natural resource conditioners, the application rate can be larger and the range of suitable dosages is wider; while synthetic conditioning agents are much less expensive due to higher potency and cost. For example, an appropriate amount of aqueous ammonia was added weathered coal or bicarbonate for composting soil fertility, per acre application rate of 30 ~ 100kg, dustable Shi Hougeng turned furrow or buried, fertilizing; polyacrylamides to increase soil The agglomerate structure is the main purpose, and the suitable dosage is generally 1.33 to 13.3 kg. It can be sprayed on the surface or dry in the topsoil, and mixed with a disc. It should be noted that the amount of conditioning agent is not effective, and the cost is increased, and the opposite effect may be obtained.
Conditioning conditions of the conditioning agent. Soil conditions have a great influence on the application effect of the conditioning agent. Spreading influence of soil moisture uniformity conditioners, soil moisture content is too high, poor farming difficult field operations, and difficult to Hunban uniform; good soil texture influence of agents on soil particles reunion, reunion clay than sand effect The high content of organic matter is better than the low content. Buy or applying soil conditioner improving soil needs to consider not only, but also consider the economic conditions and capabilities. First, make full use of cheap natural resources such as peat/stalks and minerals such as lime and gypsum. However, organic materials and large amounts of natural minerals, nearby and development, the nearest administration.
How to face the new products. In recent years, there have been new products come out of the soil conditioner, be careful before purchasing genuine understanding and characteristics of the product, according to the instructions carefully to do when administered.
(Senior Consultant of Sinofert, Professor of China Agricultural University Wang Xingren)
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