Can organic fertilizer be used instead of compound fertilizer?

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/2017-10-20
/By Huifeng Runda

Can organic fertilizer be used instead of compound fertilizer?

Crops, soils, fertilizers are closely related, crop yield and soil fertility, soil fertility that must be related to fertilizer. Chinese people use 9% of the cultivated land to feed the world more than 20% of the population. If there is no fertilizer to crop yield
How can we do it! But unreasonable application of chemical fertilizers also brought a lot of environmental problems!
China is now due to excessive use of fertilizer caused by agricultural non-point source pollution, also led to soil acidification, compaction. Many places more and more hard, the output is getting lower and lower, even the black soil production has declined. Related experts
Analysis is basically because the amount of fertilizer is caused by too much. Many soil cultivation layer of phosphorus, phosphorus and potassium nutrient imbalance, a serious shortage of organic material supply, the original rich organic matter of black land, just a few decades, has become barren.
Then the use of organic fertilizer can improve the soil, no longer use fertilizer, so feasible?
(1) Fertilizer history contribution From 1981 to 2008, food production increased by 62.8% due to the application of chemical fertilizers, although the amount of nitrogen fertilizer applied increased by 200% during this period. If there is no fertilizer, then the output will be a sharp decline. and
And China’s food supply is still tight balance, in accordance with international standards, the annual per capita share of 800 pounds was considered standard. And our country just cut the pass line. And now encounter a natural disaster was aggravated, increasing the risk of food production
Large, and then taking into account the increase in population, arable land reduction, water stress and other factors, there is no fertilizer to ensure production, it is difficult to estimate the consequences!
(2) the full application of organic fertilizer costs such as organic fertilizer is completely replaced by organic fertilizer, once someone has done the same planting acres of corn, red four 45% of the compound fertilizer is enough, and organic fertilizer due to organic matter and the three
Nutrient content in line with national standards, but the national standard of the three major nutrient content requirements of only 5%, in order to crop growth is considerable, need to use a few hundred pounds for Caixing. The full cost of organic fertilizer is too high. Only fertilizer combined with organic fertilizer
In order to improve both the crop yield and the organic matter content of the soil.
(3) innovation has a way Nowadays, many fertilizer manufacturers are beginning to combine agricultural technology sales of fertilizer, so that farmers understand the scientific fertilization, more in-depth understanding of soil, fertilizer, crop growth. Organic fertilizer can not completely replace the fertilizer, only with the scientific combination of organic fertilizer and organic fertilizer in order to gradually change the harm caused by chemical fertilizers. But also to improve farmers’ awareness of environmental protection and scientific fertilization skills, in order to gradually improve the serious environmental problems caused by chemical fertilizers.