Agricultural production pays attention to obtaining higher benefits with less investment. One of the methods is economic fertilization. A common method is to mix fertilizer with organic fertilizer.
The advantage of mixing chemical fertilizers with organic fertilizers is that they can increase the combined effect of fertilizers. When the chemical fertilizer is mixed with the organic fertilizer, the organic fertilizer can be promoted to be more mature and the nutrients can be released faster. Organic fertilizers can also adsorb chemical fertilizers, especially superphosphates and trace elements that are easily fixed or easily lost by the soil, thereby increasing the utilization rate of fertilizers.
Second, it can increase the nitrogen nutrition of crops. If organic fertilizer is mixed with superphosphate or calcium magnesium phosphate, it can promote the growth of the original nitrogen-fixing bacteria in the soil, and also promote the better growth of rhizobium in legumes, which is beneficial to increase the nitrogen supply level of crops. In addition, organic fertilizers have high organic matter content and relatively complete nutrients, which can improve soil and supply nutrients continuously.
Thirdly, it can alleviate the fertilizer damage caused by single application of chemical fertilizer or chemical fertilizer and the neutralization of soil acidification, which is beneficial to the balance of nutrition of crop roots.
The fourth is to enable quick-acting fertilizers and slow-acting fertilizers to be combined quickly and slowly, with complementary advantages, strengths and weaknesses, and effective supply.
Fifth, it can purify the living environment of humans and crops, and also make the application of fertilizer safe, economical and effective. Fertilizers that can be mixed with organic fertilizers include superphosphate, phosphate rock, copper slag, and urea.
There are many advantages to mixing fertilizers with organic fertilizers, but misuse can also be a mistake. Therefore, pay attention to the following points in the mixed technology:
1. The decomposed organic fertilizer cannot be mixed with the alkali fertilizer because the ammonium fertilizer in the ammonium state is easily volatilized;
2. When the decomposed organic fertilizer is mixed with neutral or acidic chemical fertilizer, it should be used with the mixture;
3. Fertilizers of nitrate nitrogen should not be mixed with unfertilized organic fertilizers, and nitrogen is easily volatilized by denitrification;
4. Fresh grasses and straws should not be mixed with nitrogen fertilizers to prevent nitrogen from being absorbed by microorganisms and become slow-fertilizers.
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