According to the multi-point survey in rural areas in recent years, the amount of chemical fertilizer used in crops is increasing year by year. Some farmers often do not hesitate to pay for the output, do not talk about the ratio of input to output, and over-application of fertilizer, resulting in damage to crops. Caused a reduction in production. To this end, the following work must be done according to changes in ecological conditions, which can improve the efficiency of crop fertilization.
First, look at the temperature According to many years of practice, at 0 °C-32 °C, the amount and speed of fertilizer absorbed by the crop is positively correlated with soil temperature. Below 0 °C or above 32 °C, the crop's ability to absorb fertilizer gradually declines. Accordingly, in the lower temperature season, the semi-fertilized organic fertilizer and the higher concentration of clear water feces can be applied to the wintering crops to provide heat during the decomposition process and increase the ground temperature. It is also possible to increase the application of phosphorus and potassium fertilizers to enhance the cold resistance of winter crops. It can also be applied to quick-acting nitrogen fertilizer for rapid absorption of crops. When the hot season comes, more fully fertilized organic fertilizer should be applied, and appropriate amount of fertilizer should be applied, and water should be released. It is also necessary to avoid the peak of water and fertilizer encounters, leading to prolonged crops and early premature aging.
Second, look at the light 1. It is necessary to apply more nitrogen fertilizer in places with good light conditions to promote the vegetative growth and reproductive growth of crops; in places with poor light conditions, it is necessary to apply less nitrogen fertilizer to prevent crops from being late and ripe. 2. In the case of strong light, deep application of fertilizer to prevent photolysis and volatilization, phosphorus and potassium fertilizer should be applied to improve water utilization. 3. Appropriate application of fertilizer should be applied as the leaf area factor of the crop increases, but should be applied in the morning and after 4 pm to reduce consumption.
Third, look at the water areas due to different rainfall and water source conditions, there are differences in fertilization technology. 1. In the rainy season, nitrogen fertilizer should not be applied excessively, one crop should be kept mad, the second should be prevented from losing fertilizer, and the third should be protected from pollution. 2. In the case of drought and little rain, appropriate application of phosphorus and potassium fertilizer should be applied. Increasing the application of potassium fertilizer can improve the drought resistance. Increasing the application of phosphate fertilizer can improve the utilization of water and play the role of phosphorus and nitrogen. 3. In the operation method, it should be noted that when the soil moisture content is the highest, it is better to apply heavy fertilizer, that is, the fertilizer concentration is higher, but the dosage should be less, and it should keep a certain distance from the crop plants. When the weather is dry, it is advisable to re-apply light fertilizer, or to reduce the amount of water and increase the number of watering.
Fourth, the effect of the application of gas in the air and in the atmosphere on the fertilizer is also greatly affected. When the soil is compacted, or when the water content is too high, the porosity of the soil is small, the gas is difficult to circulate, the roots are inhibited from breathing, and the decomposition of nutrients by the microorganisms is hindered, and the fertilizing ability is lowered. Therefore, in agricultural production, we must keep the soil loose and let the air flow normally. Second, we must control the amount of fertilization, especially the amount of base fertilizer. Third, we must open the field ditch, so that the precipitation can be discharged, can seep, rain and stop the field. Source: Qinghai Science and Technology News
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First, look at the temperature According to many years of practice, at 0 °C-32 °C, the amount and speed of fertilizer absorbed by the crop is positively correlated with soil temperature. Below 0 °C or above 32 °C, the crop's ability to absorb fertilizer gradually declines. Accordingly, in the lower temperature season, the semi-fertilized organic fertilizer and the higher concentration of clear water feces can be applied to the wintering crops to provide heat during the decomposition process and increase the ground temperature. It is also possible to increase the application of phosphorus and potassium fertilizers to enhance the cold resistance of winter crops. It can also be applied to quick-acting nitrogen fertilizer for rapid absorption of crops. When the hot season comes, more fully fertilized organic fertilizer should be applied, and appropriate amount of fertilizer should be applied, and water should be released. It is also necessary to avoid the peak of water and fertilizer encounters, leading to prolonged crops and early premature aging.
Second, look at the light 1. It is necessary to apply more nitrogen fertilizer in places with good light conditions to promote the vegetative growth and reproductive growth of crops; in places with poor light conditions, it is necessary to apply less nitrogen fertilizer to prevent crops from being late and ripe. 2. In the case of strong light, deep application of fertilizer to prevent photolysis and volatilization, phosphorus and potassium fertilizer should be applied to improve water utilization. 3. Appropriate application of fertilizer should be applied as the leaf area factor of the crop increases, but should be applied in the morning and after 4 pm to reduce consumption.
Third, look at the water areas due to different rainfall and water source conditions, there are differences in fertilization technology. 1. In the rainy season, nitrogen fertilizer should not be applied excessively, one crop should be kept mad, the second should be prevented from losing fertilizer, and the third should be protected from pollution. 2. In the case of drought and little rain, appropriate application of phosphorus and potassium fertilizer should be applied. Increasing the application of potassium fertilizer can improve the drought resistance. Increasing the application of phosphate fertilizer can improve the utilization of water and play the role of phosphorus and nitrogen. 3. In the operation method, it should be noted that when the soil moisture content is the highest, it is better to apply heavy fertilizer, that is, the fertilizer concentration is higher, but the dosage should be less, and it should keep a certain distance from the crop plants. When the weather is dry, it is advisable to re-apply light fertilizer, or to reduce the amount of water and increase the number of watering.
Fourth, the effect of the application of gas in the air and in the atmosphere on the fertilizer is also greatly affected. When the soil is compacted, or when the water content is too high, the porosity of the soil is small, the gas is difficult to circulate, the roots are inhibited from breathing, and the decomposition of nutrients by the microorganisms is hindered, and the fertilizing ability is lowered. Therefore, in agricultural production, we must keep the soil loose and let the air flow normally. Second, we must control the amount of fertilization, especially the amount of base fertilizer. Third, we must open the field ditch, so that the precipitation can be discharged, can seep, rain and stop the field. Source: Qinghai Science and Technology News
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