An all-source high-efficiency slow-release ecological fertilizer for sweet potato suitable for plain areas

Abstract

The invention discloses a sweet potato all-source high-efficiency slow-release ecological fertilizer suitable for plain areas, which comprises the following raw material components: humic acid sulfur-based compound fertilizer, coated controlled-release potassium fertilizer and medium and trace element compound microbial organic fertilizer; The weight ratio of acid-sulfur-based compound fertilizer, coated controlled-release potassium fertilizer and medium-trace element compound microbial organic fertilizer is (5.5-7.5): (1.3-2.5): (1-2.5). The sweet potato all-source high-efficiency slow-release ecological fertilizer of the present invention can improve soil nutrient content, physical structure and biological activity in plain areas; can realize mechanized fertilization and reduce the labor cost of fertilization; realize quality improvement and increase production of sweet potatoes in plain areas, and has significant economic, social and ecological benefits.

Description

technical field [0001] The invention relates to the technical field of controlled-release fertilizer production, in particular to a sweet potato all-source high-efficiency slow-release ecological fertilizer suitable for plain areas. Background technique [0002] At present, sweet potatoes are quite popular in the market, especially fresh sweet potatoes, which are rich in nutrition, delicious in taste, rich in dietary fiber and other digestive substances, and have great market consumption potential. Due to factors such as inconvenient transportation, uneven terrain, poor soil, and insufficient watering facilities for planting sweet potatoes in mountainous and hilly areas, it is difficult to realize large-scale mechanical production, and the yield and quality of sweet potatoes cannot be guaranteed. [0003] Plain areas have the advantages of flat terrain and fertile soil, which is conducive to the mechanization of sweet potatoes. However, in actual production, the ratio of nit...

AI Technical Summary

Problems solved by technology

Due to factors such as inconvenient transportation, uneven terrain, poor soil, and insufficient watering facilities for planting sweet potatoes in mountainous and hilly areas, it is difficult to achieve large-scale mechanical production, and the yield and quality of sweet potatoes cannot be guaranteed

[0003] Plain areas have the advantages of flat terrain and fertile soil, which is conducive to the mechanization of sweet potatoes. However, in actual production, the ratio of nitrogen, phosphorus and potassium in the existing fertilizer formulas in the market does not meet the law of sweet potato fertilizer requirements. The nitrogen content is high, and the potassium No long-term nutrient supply ability, lack of medium and trace elements, no microbial bacteria, etc. to improve soil active components, resulting in excessive growth of stems and leaves in the early stage of sweet potato planting, uneven size of potato pieces, poor potato shape, many roots on the surface of potato pieces, not smooth , low commodity rate, intolerance to storage and other issues

[0004] In addition, the soil in the plains is heavier than the sandy soil in the hills. The existing fertilization operations will further increase the problem of soil viscosity and compaction in the plains, resulting in damage to the soil structure, further inhibiting the expansion of sweet potatoes, and varying sizes of sweet potatoes. Increased deformity rate and decreased commodity rate

In addition, unbalanced fertilization leads to a decrease in the quality and taste of sweet potatoes

In addition, in some areas where the crops are planted year after year, the sweet potato is seriously affected by repeated cropping diseases. There are serious cracking and scab phenomena in the expansion stage, and nematodes and other diseases are serious, which seriously affect the yield and commodity rate.

[0005] The fertilizer function in the market is single, and the existing fertilization methods cannot uniformly apply multiple fertilizers into the soil at one time. If it is used in a large area, the cost of multiple fertilization is too high, and it is not suitable for large-scale mechanized production. Unbalanced, the yield, quality and commodity rate of sweet potatoes cannot be guaranteed, and the soil quality is also declining year by year, forming a vicious circle

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