Experts explain how to use foliar fertilizer for pepper planting . Foliar spray fertilizer is a kind of fertilization method popular in recent years. Foliar spray is suitable for most economic crops. For example, pepper planting can use foliar fertilizer for foliar application. Spray. So how do you use foliar fertilizer for pepper planting? The Zhengdao Fertilizer Network Xiaobian summarizes some tips on the use of foliar fertilizer for pepper planting.
In general, peppers enter the vigorous growth period in the early stage, watering and fertilization should keep up, usually every two weeks. Each time, the special foliar fertilizer for pepper can be applied, and the fruit of the lower part of the stem and leaf spray plant should be harvested in time, especially the door pepper, and the harvest can be appropriately advanced. Watering is carried out in a small number of ways, and the water in the field is removed in time after heavy rain.
Foliar fertilizer is a type of fertilizer that is applied to the surface of pepper leaves by nutrients and functions through the absorption of leaves. Foliar fertilization has quick effect, high utilization rate, low dosage, simple application method and obvious effect of increasing yield, and is widely used in pepper production. Ingenious use of pepper foliar fertilizer, rational use of high-efficiency foliar fertilizer to avoid waste and fertilizer damage, should master the following essentials:
Variety selection should be targeted . At present, there are many varieties of foliar fertilizers on the market, mainly including nitrogen, phosphorus and potassium nutrient elements, trace element types, amino acid types, humic acid type, growth regulating dosage forms and the like. Therefore, it is determined that the soil type and soil pH are mastered before selecting the foliar fertilizer type, and the type and amount of leaf fertilizer can be determined according to the external characteristics of the deficiency syndrome.
Generally, nitrogen, phosphorus and potassium-based foliar fertilizers can be used in the case of insufficient application of base fertilizer. Foliar fertilizers based on trace elements can be used when sufficient application of base fertilizer is applied. For example, spray the potassium dihydrogen phosphate 2-3 times 15-20 days after fruit setting. Boron deficiency can be controlled with borax or boric acid. The solubility of foliar fertilizer is better. It is better to choose less impurities with higher purity. Generally, the water insoluble matter in the fertilizer should be less than 5%. For example, use Fuwan Potassium Foliar Fertilizer to spray 2-3 times.
The acidity of the foliar fertilizer should be appropriate . Generally, the ph value is 5-8. If the pH is too high or too low, in addition to the absorption of nutrients, it will also harm the plants. The concentration of foliar fertilizer should be appropriate. For example, the spraying concentration of urea, vegetables and melons is 0.3%-0.5%. The application concentration of trace element foliar fertilizer is 0.3%-0.5%, and the application concentration of zinc, copper and molybdenum should be appropriately reduced.
Foliar fertilizer should be used with it . For example, the new configuration of ferrous sulfate leaf fertilizer is light green and has no precipitation. It turns reddish or precipitated and the effectiveness of the fertilizer has been reduced. Foliar fertilizer spraying time should be appropriate. The foliar application time is best chosen before the sunny and windless evening. Spray at critical times of crop growth. It can be administered 2-3 times continuously during fruit setting or fruiting. The number of sprays should be appropriate.
Generally, nitrogen fertilizer and potassium fertilizer can be sprayed 1-2 times after being absorbed by the leaf surface; phosphate fertilizer and trace elements can be sprayed 2-3 times after being absorbed by the leaf surface; every 10 days or so. The spraying site should be comprehensive. Spray on the front and back of the blade. It is not possible to replace fertilizer with foliar fertilizer. Appropriate foliar fertilizer and NPK fertilizer should be applied at the same time. The production of pepper is in the fruiting stage and the peak of the result. It is necessary to scientifically control the rational use of high-efficiency foliar fertilizer to avoid waste and fertilizer damage.
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