Foliar fertilizer is very important, and growers should pay attention to it
People increase crop yields, improve product quality, boost economic returns, and maintain and improve soil fertility through fertilization. Organic fertilizer is an indispensable fertilizer for producing green food: first, it can improve soil fertility; second, it can reduce soil pollution; third, it has a nutritional effect. Organic fertilizer needs to be rendered harmless...
Foliar fertilizer generally refers to organic and inorganic fertilizers in various forms and with various nutrients, processed into an aqueous solution and sprayed on plant leaves according to certain technical requirements, concentrations and dosages, to provide nutrients and other effects for plants, and it is generally called foliar fertilizer. It is also a means of foliar topdressing. The main role of foliar fertilizer is to make up for the insufficient nutrient uptake by crop roots, promote crop physiological metabolism and growth and development, and at the same time also improve crop yield and quality, which is especially significant in years with low-temperature cold damage. Field crops increase yield by 5%-10% annually; fruit trees by 5%-15%; vegetables by 20%-30%.In recent years, with the development of production, the popularization of agricultural mechanization and improved seed varieties, and the continuous increase in crop yields, especially as the number of planting years grows, the trace elements in the soil have decreased year by year, causing nutrient imbalance. In order to achieve sustainable agricultural development and solve this prominent problem, using foliar fertilizer to supplement the insufficient nutrients in the soil has become an important direction for agricultural development, so the use of foliar fertilizer should attract great attention from farmers.
New characteristics of foliar fertilizer:
First, it is highly targeted. Especially in fields with formula fertilization, whatever element the crop lacks, that element is supplemented; however much microfertilizer is lacking, that much microfertilizer is supplemented.
Second, the fertilizer effect is good and absorption is fast. With 1%-2% urea, one third of the amount is absorbed in a day and a night; with 2% superphosphate, 5 minutes after spraying, the crop begins to absorb it and it takes effect.
Third, it supplements insufficient nutrients. Especially at the seedling stage, when root absorption capacity is poor, spraying zinc, magnesium, calcium, iron, phosphorus, potassium and other fertilizers early at the seedling stage has a very significant effect. In years with low temperature and insufficient sunlight, foliar fertilizer is an excellent measure to promote early maturity and improve quality.
Fourth, it saves fertilizer. The use of foliar fertilizer solves the problem of fertilizer being fixed in the soil, volatilizing and leaching away, which causes waste of fertility. 80%-90% of foliar fertilizer can be absorbed by crops.
Fifth, it lowers costs. Spraying Nongbao brand foliar fertilizer twice is equivalent to applying one round of topdressing to the crop. This both solves the problem of fertilizer deficiency in the later stage of corn and achieves the goals of saving fertilizer, lowering costs and addressing nutrient depletion.
Sixth, the new characteristics of new-type foliar fertilizer. In a broad sense, new-type foliar fertilizer achieves both fertilizer and pesticide functions; both fertilizer and growth regulator functions; both fertilizer and stimulation functions (hormone types, rooting powder types, biological bacteria types, sugar-increasing types); and both fertilizer and resistance functions (resisting diseases and insects, resisting excessive growth, resisting frost damage, resisting pesticide damage...). This is the development direction of green food agriculture and agricultural industrialization in the future.
In production and use, new-type foliar fertilizer requires grasping the application period, application methods and precautions, and the application amount must not be changed arbitrarily or increased. Under normal circumstances, it should be used alone as much as possible to reduce the amount of mixing, and 3-5 days before use, conduct a small-area trial, and only after there are no problems should it be promoted over a large area. When spraying bacterial fertilizer, it is best to do so on a cloudy day with no wind.