Flowering period topdressing fertilizer for walnut trees, and preparation method thereof

Abstract

The invention belongs to the technical field of fertilizers, and provides a flowering period topdressing fertilizer for walnut trees, and a preparation method thereof. The purpose of the invention isto timely meet the requirements for a large amount of nutrient substances in flowering pollination, young fruit growth and development and other physiological activities of walnut trees in order to achieve healthy development of young fruits and increase the fruit setting rate. The fertilizer comprises 15-27 wt% of nitrogen, 3-6 wt% of phosphorus, 2-6 wt% of potassium, 0.5-0.8 wt% of molybdenum, 1-1.5 wt% of magnesium, 0.5-1 wt% of boron and 5-8 wt% of humic acid. The topdressing fertilizer for walnut trees in the flowering period is prepared to supply nutrients needed by fruit setting of pollinated embryos after fruit tree flowering. The fertilizer can supplement a large amount of nutrients consumed by walnut trees due to flowering, promote sufficient pollination and normal development ofembryos during flowering, reduce fruit dropping, increase fruit set rate, enhance the photosynthesis and promote the vigorous growth of new shoots and young leaves. The finished fertilizer is a liquid fertilizer, and can be applied cooperatively with a micro-irrigation system to achieve a high absorption rate and a timely fertilizer effect, and the preparation method has the advantages of simplicity, low cost, and suitableness for industrial production.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to topdressing fertilizers for walnut tree flowering stages and a preparation method thereof. Background technique [0002] Fertilization of fruit trees is one of the important measures to ensure high yield, stable yield and high quality of fruit trees. Over the years, my country's high agricultural production has been mainly due to the application of large amounts of chemical fertilizers. The overweight of many soil nutrients and the lack of trace elements have led to soil salinization, compaction and deficiencies. Such as zinc deficiency, the leaves are small and yellow, curled, and in severe cases, the leaves of the whole tree are small and curled, and the tops of the branches die; manganese deficiency, the leaves lose chlorosis, and the veins become light green, withered spots on the mesophyll and leaf margins, prone to premature Falling; boron deficiency, branc...

AI Technical Summary

Problems solved by technology

At this time, a large amount of nitrogen, phosphorus fertilizers, and trace elements such as boron, iron, and magnesium are needed to meet the needs of pollination, fertilization, and fruit-setting of embryos after flowering; excessive flowering and fruit-setting will consume a large amount of stored nutrients and intensify competition among young fruits, resulting in a large number of Flower drop and fruit drop; too many fruits will cause poor vegetative growth, and the supply of photosynthetic products will be in short supply, which will affect the normal development of fruits and reduce the quality of fruits; too many young fruits will increase the level of gibberellin in the tree, inhibit the formation of flower buds, and cause the phenomenon of large and small annual fruiting; Weaken the tree vigor and reduce the ability to resist adversity