When do peanuts grown in rural areas usually be fertilized? What kind of fertilizer has high yield? What is the law of fertilizer requirement for its growth?

Peanut is a common crop in rural areas, although it is very common, it is rich in nutritional value. Today, the editor is going to talk about when peanuts are usually fertilized. What kind of fertilizer has high yield? What is the law of fertilizer requirement for its growth?

When do peanuts usually be fertilized? What kind of fertilizer has high yield?

Topdressing of peanut should be determined according to soil fertility, the amount of base fertilizer and the growth status of peanut.

Peanut boron deficiency has less flowers, less fruit, more shell and no kernel; zinc deficiency leaflet yellowing; molybdenum deficiency peanut root nodule less, which affects the nitrogen demand and yield of peanut. At the same time, we must overcome the habit of single use of nitrogen, peanuts need more nitrogen, not more nitrogen in the soil, but through root nodules to fix more nitrogen in the air, how to promote peanut nodulation in order to obtain high yield. Therefore, there is an agricultural proverb "peanuts like lack of dung", is not without reason.

This requires us not to apply too much nitrogen fertilizer to peanuts, but also to apply a large amount of organic fertilizer, medium and trace element fertilizers, phosphorus, potassium and a variety of active bacterial fertilizers, so as to create a "loose, soft, fertilizer and living" high-yield soil for peanut growth. In order to meet the demand of high yield and high quality of peanuts. Positive organic microorganism coated pure fertilizer, which integrates nitrogen, phosphorus and potassium inorganic fertilizer, humic acid organic fertilizer, medium and trace element fertilizer, multi-functional compound microbial fertilizer, four-effect in one, intelligent regulation, slow release and long-term effect, promoting peanut nodulation and less disease. especially it can kill and inhibit the pathogens such as peanut root rot, crown rot, white silk disease and scorch spot, and it also has a good killing effect on underground pests such as grub nematodes.

Second, what is the law of fertilizer requirement for peanut growth?

Peanut is a crop with more oil and protein. Normal growth and development requires many elements such as nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, zinc, copper, iron, manganese and so on, among which peanut has the effect of nitrogen fixation, but it cannot be fixed before root nodule is formed at seedling stage, so nitrogen fertilizer should be supplied sufficiently at seedling stage to promote seedling growth. Phosphate fertilizer can promote peanut ripening, grain fullness and pod setting rate. The absorption of potassium fertilizer is very large, and potassium can promote the growth of stem vine, fruit shell and kernel. In the soil with poor fertilizer conservation, the effect of potassium fertilizer is obvious. Other elements can be used pertinently according to the supply of soil nutrients.

Peanut has a strong ability to absorb fertilizer, in addition to the root system, fruit needles, young fruits and leaves also absorb nutrients directly. The amount of fertilizer required for peanut at different growth and development stages was different, the amount of nutrients needed at the seedling stage was relatively small, the absorption of nitrogen, phosphorus and potassium only accounted for about 5% of the total absorption in a lifetime, and the amount of nutrients absorbed at the flowering stage increased sharply. The absorption of nitrogen, phosphorus and potassium accounted for 17%, 22.6% and 22.3% of the total absorption in a lifetime. The podding period is the most vigorous period for peanut vegetative growth and reproductive growth. A large number of pods are formed, and it is also the period that absorbs the most nutrients. Nitrogen absorption accounts for 42% of the total absorption in a lifetime, phosphorus accounts for 46%, and potassium accounts for 60%. The ability to absorb nutrients during the full fruit ripening period gradually weakens, accounting for 28% of the total nitrogen, 22% of phosphorus and 7% of potassium. Peanut is sensitive to trace elements boron, molybdenum and iron, and iron deficiency is more likely to occur in the soil with more calcium carbonate and higher PH.