Chinese yam special-purpose composite fertilizer

Abstract

The invention discloses Chinese yam special-purpose composite fertilizer. The Chinese yam special-purpose composite fertilizer comprises, by weight, 45 parts of urea, 30 parts of diammonium phosphate, 20 parts of potassium sulfate, 0.6 parts of zinc sulfate, 0.8 parts of manganese sulfate and 5 parts of calcium triple superphosphate, wherein the above components are used for providing mineral nutrients for Chinese yam growth, and the Chinese yam special-purpose composite fertilizer also comprises, by weight, 100 parts of river sand for culture soil improvement, wherein the river sand at least comprises 50% or more of silica and is selected by a sieve of pore sizes of 5mm. The Chinese yam special-purpose composite fertilizer has a wide application range, produces strong and lasting effects, has a high utilization rate at the present season, utilizes river sand to obviously improve soil quality, realizes high Chinese yam quality and stable production and solves the problem that the existing Chinese yam special-purpose formula has poor adaptability, low nutrient content and a low utilization rate at the present season, destroys soil quality and has inadaptability to normal growth and development of different types of Chinese yam in different cultivation environments.

Description

technical field [0001] The invention relates to an agricultural compound fertilizer, in particular to a special compound fertilizer for yams. Background technique [0002] Yam is cultivated in most parts of the country, and many farm varieties have been formed (there are hundreds of species recorded in literature, including more than 30 local famous and excellent varieties). Chinese medicinal materials are also one of the precious vegetables with rich nutritional value. Fresh yams contain an average of 14.48% crude protein, 3.78% crude fat, 43.79% starch, 1.14% total sugar, 5.51% ash, 2.62% potassium, 0.72% phosphorus pentoxide, 53.75mg / kg iron, 19.22mg / kg zinc kg, copper 10.85mg / kg, magnesium 0.14%, calcium 0.12%, manganese 5.38mg / kg, and various vitamins, especially the free arginine content is as high as 1.15%, which has laid a rich and unique nutritional resource for yam. At the same time, yam contains many secondary metabolites, such as allantoin, saponin, choline, do...

AI Technical Summary

Problems solved by technology

[0003] Yam is becoming more and more popular in domestic and foreign markets, and the market capacity is increasing year by year. However, the current problem in yam production is that the proportion of organic fertilizers used in various yam production areas in the country is getting smaller and smaller, and the application of chemical fertilizers is relatively blind. The amount of chemical fertilizers, The types are relatively random

This kind of blind fertilization regardless of the characteristics and laws of yam growth and the characteristics of the cultivation soil has caused serious instability in the yield and quality of yam, and has also caused adverse effects on the soil environment, even polluting the environment.

In this situation, there is an urgent need to develop and promote special compound fertilizers for yams. This kind of special compound fertilizers should be suitable for the soil environment and the main varieties of local yams in most of the country’s yam production areas. Narrow, low nutrient content, low utilization rate in the current season, damage to soil texture, can not meet the normal growth and development of different types of yams in different cultivation environments, need a high nutrient content, wide application range, can meet Special fertilizer for yam required by different types of yam