The position of organic fertilizer in China's fertilizer structure
2022-01-28 01:35
Chinese farmers have a long history and rich experience in the production and use of organic fertilizers. Throughout the long history of agricultural production in China, organic fertilizers have been used to improve the soil.
Chinese farmers have a long history and rich experience of accumulating and using organic fertilizers. In the long history of China's agricultural production, has been relying on organic fertilizers to improve the soil, fertilization, production of food, nourishing our Chinese ancestors, it can be seen that organic fertilizers in agricultural production at that time plays an extremely important role. After the founding of new China, China's fertilizer industry has been developed, the use of fertilizer increased year by year. In the 50 ~ 60 s, organic fertilizer in agricultural production still plays a dominant role in the application of fertilizers are still mainly organic fertilizers, chemical fertilizers as a supplement. 1965, organic fertilizers accounted for 80.7% of the total amount of fertilizer inputs. 70 s, China's chemical fertilizers developed very quickly, from 1971 to 1980 in the 10-year period, the output of 2,994,000 tons (nutrients), an increase of 12,321,000 tons. The proportion of organic fertilizers declined, accounting for 66.4% of the total fertilizer input. in 1987, the total output of chemical fertilizers amounted to 16,122,000 tons, and the average mu application of chemical fertilizers amounted to 27.8 kilograms. The proportion of chemical fertilizers in the total fertilizer input increased considerably, especially as the proportion of nitrogen nutrients exceeded that of organic fertilizers, but organic fertilizers still played a major role in the supply of phosphorus and potassium nutrients.
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