Special boron/molybdic fertilizer for peanut and prepn. thereof

Abstract

This invention relates to agricultural fertilizers, mainly boron-molybdenum special fertilizers for peanut growth and their preparation method. Lack of boron or molybdenum may cause abnormal growth of peanuts, increase of empty peanut grains and quality declination. This invention provides a kind of boron-molybdenum special fertilizer for peanut cultivation, which comprises two components. Component 1 includes urea, potassium dihydrophosphate, potassium chloride, borax, ammonium molybdate, acetyisalicylic acid and triacontanol. Component 2 includes sodium alginate, xanthan gum and quicklime. The boron-molybdenum peanut special fertilizer is intended for southern earth which is seriously short of boron and molybdenum. According to many years' experience, by fertilized with this kind of fertilizer, activity of nitrate reductase and nodule nitrogenase in peanut leaves can be significantly promoted, nitrogen absorption, transportation and distribution can be enhanced, chlorophyll content and photosynthesis intensity in peanut leaves can be raised, peanut weight can be increased and both the quality and the yield can be promoted. The peanut yield can be increased by 10~18% per unit of area.

Description

Technical field: [0001] The invention relates to an agricultural fertilizer, mainly a special fertilizer for peanut boron and molybdenum compounding and a preparation method thereof. Background technique: [0002] Peanut is an important oil crop. Boron and molybdenum play an important role in the growth and development of peanuts because they participate in the basic physiological metabolism of peanuts and other legumes. The lack of boron and molybdenum can lead to abnormal development of peanuts, increased empty grains, and reduced quality. Boron and molybdenum are very deficient in southern acidic soils. Supplementing the trace elements boron and molybdenum necessary for the growth of peanut plants through various means is the only way to improve the yield and quality of peanuts. Although peanut boron and molybdenum were applied in the 1970s, most of them were boron or molybdenum single fertilizers, and there was a lack of special fertilizers for peanut boron and molybdenu...

AI Technical Summary

Problems solved by technology

In the early seedling stage, on the one hand, due to the weak absorption capacity of the peanut root system, extra-root fertilization techniques such as foliar spraying are needed to supplement, but its demand for nitrogen is limited; and in the late seedling stage, due to the vigorous growth of peanut nutrition , so the demand for nitrogen reaches a maximum. At this time, although the absorption capacity of the root is strong, it is still not enough to meet the demand for nitrogen of the peanut plant. Therefore, the concentration of spraying fertilizer on the foliage should be increased; The demand reaches the maximum, but at this time a large amount of molybdenum source nitrogen will inhibit the activity of rhizobia and affect its nitrogen fixation ability, so the nitrogen concentration of fertilization should also be appropriately reduced at this time