Baochuan Wire Mesh Products Co., Ltd. , http://www.anp-wiremesh.com
The absorption of nitrogen, phosphorus and potassium in peanuts is less than two and more in the middle. In the whole growth process, the absorption of nitrogen, phosphorus and potassium is: seedling stage, full fruit stage, less maturity stage, more flowering needle stage and pod stage.
The nitrogen absorbed by peanuts mainly comes from the nodule nitrogen fixation. According to tests, 2/3 to 4/5 of the nitrogen absorbed by peanuts comes from nodule nitrogen fixation. The yield of peanuts is less than 300 kg, and the amount of fertilizer is increasing, and the amount of fertilizer is decreasing.
Peanuts are legumes that are calcium-loving. Calcium can promote the synthesis of protein and amide in peanuts, reduce the rate of empty space and increase the fullness of pods. The calcium-deficient roots are weak, and the single-fruit, capsule and empty fruit are significantly increased. Therefore, scientific application of calcium fertilizer can increase pod yield and quality.
Second, peanut fertilization technology
1. Fertilization principle: organic fertilizer and inorganic fertilizer are applied together. Nitrogen, phosphorus, potassium, and micro-fertilizers are reasonably matched, and the base fertilizer is applied and the appropriate topdressing is applied.
2, fertilization method: application of organic fertilizer more than 300 kg, mulch peanuts once do the bottom fertilizer application without topdressing, acre high content of peanut special fertilizer 30 kg, open ground peanut phosphorus, potassium fertilizer and base fertilizer together, nitrogen fertilizer general bottom dose 50-80%, the rest in the early flowering period; wheat peanuts in the initial flowering period. In the middle and late stages, foliar spray fertilizer according to the growth trend, such as boron, zinc (0.2%) potassium dihydrogen phosphate (0.1-0.2%) can play a role in leaf retention, root preservation and extension of the parietal function.
Peanuts, like Other crops, have stronger soils and higher yields. However, in the weak sand, by increasing the application of organic fertilizer and nitrogen, phosphorus and potassium fertilizers, it can also achieve rapid increase in production and high yield.
What are the characteristics of peanut fertilization?
First, peanuts need fertilizer characteristics
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】