Do you really know foliar fertilizer? Look at the misunderstandings about foliar fertilizer, are you also in the middle?
First, "can be opened" can be sprayed, wrong!
Some farmers like to mix several kinds of foliar fertilizers when spraying fertilizers on crops and vegetables. The more complete the variety, the better. It is also believed that no matter what kind of fertilizer, as long as it is “turned onâ€, it can be Apply foliar fertilizer.
actually not.
Fertilizers with strong volatility such as ammonia, ammonium bicarbonate, etc., if applied as foliar fertilizers, high temperatures can burn crop leaves when sprayed. Moreover, many micro-fertilizers should not be mixed with pesticides. Acidic fertilizers and alkaline fertilizers should not be mixed and sprayed. The fertilizer-fertilizer and fertilizer-drugs should be mixed and applied in a targeted manner to provide a spray and a variety of effects. Otherwise, it will be counterproductive.
Second, the higher the spray concentration, the better, wrong!
Some farmers think that the greater the concentration of the foliar spray fertilizer solution, the better. This is not true. Such as high nitrogen water soluble fertilizer, potassium dihydrogen phosphate for foliar fertilizer spraying concentration should only be below 1%, more medium and trace element fertilizers such as sugar alcohol calcium fertilizer, sugar alcohol calcium boron fertilizer, sugar alcohol zinc, chelate Iron, chelated copper, etc. should only be controlled below 0.2%. If the concentration of foliar fertilizer is too high, it will not be able to spray fertilizer, but it will cause dehydration and wilting of crop leaves, leading to fertilizer damage, and it will lead to cost increase and fertilizer waste. Generally, the spray is applied to the front and back sides of the blade to spread the fertilizer liquid to start dripping.
Third, you can spray at any time, wrong! Foliar fertilizer is the best in the critical period of crops, but some farmers are free to implement foliar spray at any time during plant growth and development. This is not right.
Foliar spray fertilizer is best carried out during the growth transition period of the crop. The spraying time is at least 20 days apart. Generally, the crop is sprayed 2 to 3 times per season. Different plants, different fertilizers, foliar spray fertilizer, there are certain differences in the appropriate period. Rice, corn, wheat and other cereal crops should be sprayed at the booting, flowering and filling stages. Soybeans, peanuts, broad beans, kidney beans and other legume crops should be sprayed during flowering and podging. Cotton should be sprayed at the flowering and ringing stage. Molybdenum fertilizer should be sprayed before the plants bloom. Boron fertilizer and zinc fertilizer have the best effect on the initial flowering stage of plants.
From the time of spraying fertilizer, it should be sprayed on the windless cloudy day or sunny morning, after the dew on the leaf surface is dry, avoiding the high temperature time in the hot sun.
This article URL: Do you really know foliar fertilizer? Look at the misunderstandings about foliar fertilizer, are you also in the middle?
Disposable Medical Products,Lab Disposable Medical,Laboratory Disposable Medical,Laboratory Glass Capillary Tubes
Yancheng Rongtai Labware Co.,Ltd , https://www.shtestlab.com