A kind of southern potato drip irrigation controlled release fertilizer and preparation method thereof

Abstract

The invention discloses a Southern Potato Drip Irrigation Controlled Release Fertilizer. The raw material for its preparation consists of the following components in parts by weight: 40-60 parts of inner layer fertilizer and 3-5 parts of outer layer controlled release material; wherein, the inner layer fertilizer consists of the following weight parts: The number of components is prepared: 20-30 parts of organic fertilizer, 20-30 parts of ammonium polyphosphate, 10-20 parts of urea, 10-20 parts of biochemical potassium fulvic acid, 1-5 parts of seaweed, polyglutamic acid 1-3 parts; the outer layer controlled release material is prepared from the following parts by weight: 20-30 parts of modified peat, 10-15 parts of chitosan modified bentonite, 0.5-1 part of water-retaining agent, acetic acid / sodium acetate 1-2 parts of buffer solution, 1-2 parts of lipase, 50-80 parts of water. The invention also provides a preparation method of the southern potato drip irrigation controlled release fertilizer. The long-term release of the fertilizer of the invention meets the requirement of the potato for the fertilizer in the whole growth period, and increases the yield significantly.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a southern potato drip irrigation controlled-release fertilizer and a preparation method thereof. Background technique [0002] Potato has strong adaptability and high yield, and is one of the four major food crops in the world. After rice harvesting in southern my country, a large number of fallow fields are left idle, which is especially suitable for the development of potato production. Therefore, the potato planting area has expanded rapidly in recent years. Potatoes have very strict requirements for nutrients. During the growth process, there is a correlation between the aboveground stem and leaf part and the underground tuber part. The growth of the aboveground stem and leaf part is the basis for the formation of yield. The tubers in the soil cannot get enough nutrition, and if the stems and leaves of the above-ground part grow too vigorously, they will com...

AI Technical Summary

Problems solved by technology

[0004] The invention provides a southern potato drip irrigation controlled-release fertilizer and a preparation method thereof, which solves the problem that the potato production in the prior art adopts plastic film covering and drip irrigation cultivation methods. Producers generally apply the fertilizer at one time before covering the film, and do not use it later. Then topdressing, which leads to the difficulty of topdressing in the later stage, and the problem of excessive nutrients in the early stage and insufficient nutrients in the later stage during the growth process, which in turn affects the yield of potatoes.

Images