First of all, it has promoted the increase of production and income of the planting industry. Since the promotion in 1983, the production of grain, cotton and oil in our province has increased substantially. This is in addition to various measures such as improving varieties and reforming the cropping system. It has played a very important role.
According to the statistics of many years of experiments, the formula fertilization increased the yield of wheat by 43.3 kg, the yield increased by 14.4%, and the income increased by 27.0 yuan; the yield of corn increased by 67.2 kg, the yield increased by 18.4%, and the yield increased by 28.0 yuan; 74.9 kg, the rate of increase was 13.6%, the income increased by 17.3 yuan per mu; the yield of peanuts increased by 16.3 kg, the yield increased by 9.3%, and the income increased by 22.8 yuan. According to the average increase of 50 kg of grain per mu, the income will increase by 27 yuan, and the average yield per mu will increase by 10 kg, and the income will increase by 32 yuan. The average yield per mu will increase by 16 kg, and the income will increase by 22 yuan. The cumulative yield of grain in 20 years will increase by 31.64 billion kg. 100 million kilograms, increased production of peanuts 920 million kilograms, cumulative social benefits increased by 20.946 billion yuan.
Secondly, the adjustment of fertilizer application structure. Over the past 50 years, the application of chemical fertilizers in our province has been roughly divided into three stages. In the 1950s, it was the stage of nitrogen fertilizer use. The main fertilizer varieties were nitrogen fertilizer, and the amount of phosphate fertilizer applied was very small. In the 1970s, in the phase of nitrogen and phosphorus application, in addition to nitrogen fertilizer, phosphate fertilizer was widely applied; after the mid-1970s, it entered the stage of application of nitrogen, phosphorus and potassium trace elements, and the amount of chemical fertilizer was further increased. Potassium fertilizer and trace element application area. Rapidly expanded.
In 1992, the total amount of physical fertilizers in the province reached 10.886 million tons, which was 2.819 million tons, which was 2.256 million tons and 1.01 million tons respectively. According to the calculation of planting acre, the average amount of fertilizer applied in 1992 (pure nutrient, the same below) was 17.08 kg, of which nitrogen 10.9 kg, phosphorus (phosphorus pentoxide) 6 kg, potassium (potassium oxide) 1.51 kg, respectively, compared with 1983 Increase by 5.59 kg, 2.71 kg, 1.62 kg, 2.64 kg. From the current needs of the main crops for nitrogen, phosphorus and potassium nutrients, in addition to potassium fertilizer in 1992, nitrogen and phosphorus fertilizers basically reached the range of reasonable fertilization. Relevant experts suggest that the proportion of fertilizer used in China should be adjusted to 1:0.4～0.5:0.2～0.3 in recent years. Therefore, the application rate of nitrogen and phosphorus in our province is close to the appropriate ratio, but there is still a large gap in the application rate of potassium.
Third, the improvement of soil nutrient status formula fertilization according to soil nutrient status, a reasonable mix of various crop nutrients. At the same time, with the increase of crop yield, the amount of crop roots and straw returned to the field increased, and the biological cycle was promoted. Therefore, the soil fertility was effectively improved, and the soil organic matter content and nutrient fertility level were improved. The relevant departments have summarized the changes in soil organic matter and nitrogen and phosphorus contents in eight cities (counties). From 1979 to 1983, the average soil organic matter in these areas was 0.91%, total nitrogen was 0.064%, alkali nitrogen was 50.6 ppm, and available phosphorus was 5.1 ppm. From 1989 to 1992, the average soil organic matter was 1.04%, the total nitrogen was 0.071%, the alkali nitrogen was 70.7 ppm, and the available phosphorus was 9.5 ppm, which was 0.13 percentage points, 0.007 percentage points, 20.1 ppm, and 4.4 ppm, respectively, 10 years ago. The increase was 14.3%, 10.9%, 39.7%, 86.3%. However, from the general situation, potassium showed a downward trend, mainly due to the lack of potassium fertilizer, and failed to increase the corresponding potash fertilizer with the increase of crop yield.
Source of information: Rural Volkswagen
According to the statistics of many years of experiments, the formula fertilization increased the yield of wheat by 43.3 kg, the yield increased by 14.4%, and the income increased by 27.0 yuan; the yield of corn increased by 67.2 kg, the yield increased by 18.4%, and the yield increased by 28.0 yuan; 74.9 kg, the rate of increase was 13.6%, the income increased by 17.3 yuan per mu; the yield of peanuts increased by 16.3 kg, the yield increased by 9.3%, and the income increased by 22.8 yuan. According to the average increase of 50 kg of grain per mu, the income will increase by 27 yuan, and the average yield per mu will increase by 10 kg, and the income will increase by 32 yuan. The average yield per mu will increase by 16 kg, and the income will increase by 22 yuan. The cumulative yield of grain in 20 years will increase by 31.64 billion kg. 100 million kilograms, increased production of peanuts 920 million kilograms, cumulative social benefits increased by 20.946 billion yuan.
Secondly, the adjustment of fertilizer application structure. Over the past 50 years, the application of chemical fertilizers in our province has been roughly divided into three stages. In the 1950s, it was the stage of nitrogen fertilizer use. The main fertilizer varieties were nitrogen fertilizer, and the amount of phosphate fertilizer applied was very small. In the 1970s, in the phase of nitrogen and phosphorus application, in addition to nitrogen fertilizer, phosphate fertilizer was widely applied; after the mid-1970s, it entered the stage of application of nitrogen, phosphorus and potassium trace elements, and the amount of chemical fertilizer was further increased. Potassium fertilizer and trace element application area. Rapidly expanded.
In 1992, the total amount of physical fertilizers in the province reached 10.886 million tons, which was 2.819 million tons, which was 2.256 million tons and 1.01 million tons respectively. According to the calculation of planting acre, the average amount of fertilizer applied in 1992 (pure nutrient, the same below) was 17.08 kg, of which nitrogen 10.9 kg, phosphorus (phosphorus pentoxide) 6 kg, potassium (potassium oxide) 1.51 kg, respectively, compared with 1983 Increase by 5.59 kg, 2.71 kg, 1.62 kg, 2.64 kg. From the current needs of the main crops for nitrogen, phosphorus and potassium nutrients, in addition to potassium fertilizer in 1992, nitrogen and phosphorus fertilizers basically reached the range of reasonable fertilization. Relevant experts suggest that the proportion of fertilizer used in China should be adjusted to 1:0.4～0.5:0.2～0.3 in recent years. Therefore, the application rate of nitrogen and phosphorus in our province is close to the appropriate ratio, but there is still a large gap in the application rate of potassium.
Third, the improvement of soil nutrient status formula fertilization according to soil nutrient status, a reasonable mix of various crop nutrients. At the same time, with the increase of crop yield, the amount of crop roots and straw returned to the field increased, and the biological cycle was promoted. Therefore, the soil fertility was effectively improved, and the soil organic matter content and nutrient fertility level were improved. The relevant departments have summarized the changes in soil organic matter and nitrogen and phosphorus contents in eight cities (counties). From 1979 to 1983, the average soil organic matter in these areas was 0.91%, total nitrogen was 0.064%, alkali nitrogen was 50.6 ppm, and available phosphorus was 5.1 ppm. From 1989 to 1992, the average soil organic matter was 1.04%, the total nitrogen was 0.071%, the alkali nitrogen was 70.7 ppm, and the available phosphorus was 9.5 ppm, which was 0.13 percentage points, 0.007 percentage points, 20.1 ppm, and 4.4 ppm, respectively, 10 years ago. The increase was 14.3%, 10.9%, 39.7%, 86.3%. However, from the general situation, potassium showed a downward trend, mainly due to the lack of potassium fertilizer, and failed to increase the corresponding potash fertilizer with the increase of crop yield.
Source of information: Rural Volkswagen
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