Precautions When Using Humic Acid Fertilizers

There are four points to pay attention to when using humic acid fertilizer, first, the application temperature should be appropriate. When using humic acid fertilizer, the most taboo is high temperature and low temperature. When using humic acid fertilizers, be sure to control the temperature, if the temperature is higher than 38 ° C, then the crop respiration rate will be accelerated, the accumulation of dry matter will be reduced, will cause soil fertilizer damage, which will have a great impact on the crop harvest. Therefore, it is necessary to control the frequency and amount of fertilization in time. Applying humic acid fertilizer at low temperature has a very slow yield increase effect, which is easy to waste fertilizer and increase the planting cost. The use of humic acid fertilizer in the soil, in the case of high temperature and humidity, soil fertility will be better, and crops will grow better. Second, scientific preparation should be carried out before application. Humic acid fertilizer as the base fertilizer and seed fertilizer, can play a better effect, centralized application, broadcast sowing, deep application are better than shallow application. Adding a certain proportion of potassium dihydrogen phosphate, potassium sulfate and magnesium sulfate before application can improve soil nutrient utilization, improve crop stress resistance, improve soil and increase yield. Third, the application of crops to choose. The application of humic acid fertilizer depends on the different crops, the effect on cabbage and radish will be better, but it will be worse on tuber crops, and the effect on grains will be greatly reduced. Fourth, the application concentration is appropriate. Because the role of humic acid fertilizer and plant growth hormone is similar, so at the time of application, special attention should be paid to the concentration of fertilization, excessive or too little, not only does not have much effect on the growth of crops, but also has a certain impact on the growth of crops.