Organic fertilizer for sweet potato planting and preparation method thereof

Abstract

The invention relates to the technical field of organic fertilizers, in particular to an organic fertilizer for sweet potato planting and a preparation method thereof. The organic fertilizer uses a thoroughly decomposed material, which is formed by mixing cattle manure, chicken manure, plant straw, corn flour, a Chinese herb residue and an EM microbial inoculum, fermenting and thoroughly decomposing, as a base material; through addition of camellia seed cake, plant ash and silicone rubber powder, an ordinary fertilizer is changed into a slow-release fertilizer; meanwhile, through addition of trace elements and organic calcium, the organic fertilizer can slowly release nutrients for sweet potato growth for many times, so that the healthy sweet potato growth can be better promoted, better sweet potatoes can be obtained and human health is benefited; the Chinese herb residue is used as a raw material, so that a waste material can be utilized to reduce the environment pollution, the totalnutrient content of the organic fertilizer can be increased, and the trace element content is increased; in addition, the corn flour provides a carbon source for microbial growth, so that the earlierfermentation speed is increased, and the fermentation temperature is rapidly increased so as to kill harmful bacteria and worm eggs.

Description

technical field [0001] The invention relates to the technical field of organic fertilizers, in particular to an organic fertilizer for planting sweet potatoes and a preparation method thereof. Background technique [0002] Sweet potato, also known as sweet potato and sweet potato, is the root of an annual plant in the family Convolvulaceae. Its skin is whitish or red, and its flesh is mostly yellowish white or purple. In addition to being edible, it can also be used to make sugar, wine, and alcohol. The calorie content of sweet potatoes is very low, which is much lower than that of ordinary rice, so you don't have to worry about getting fat when eating sweet potatoes. On the contrary, eating sweet potatoes can play a role in losing weight. [0003] Sweet potatoes need fertilizers during their growth, and their active ingredients are mainly nitrogen, phosphorus, and potassium. In the prior art, for the fertilizers required in the sweet potato planting process, one fertilizat...

AI Technical Summary

Problems solved by technology

Such fertilization results will inevitably cause the loss of phosphorus and potassium fertilizers, which not only wastes fertilizers, but also cannot guarantee the quality and sweetness of sweet potatoes, which increases production costs.

Another method of fertilization is to supplement certain elements in a targeted manner or directly use ordinary chemical fertilizers sold on the market. In fact, the effective absorption of fertilizers in the process of planting sweet potatoes is less than 50%, and the nutritional value of many fertilizers is lower than that of other fertilizers. Wasted, i.e. commonly applied fertilizers are inefficiently used

Existing organic fertilizers are used for the cultivation of sweet potatoes in saline-alkali land. The survival rate of sweet potatoes is low, the yield per mu is low, and the starch content of sweet potatoes is low