Special compound fertilizer for sweet potato yield increase

Abstract

The invention provides a compound fertilizer for sweet potato yield increase, the compound fertilizer is prepared from the following raw materials by weight: 12-18 parts of urea, 24-36 parts of mixedphosphate fertilizer, 4-6 parts of sodium tetraborate, 3-4 parts of magnesium sulfate, 5-6 parts of zinc sulfate, 2-3 parts of sodium selenite, 12 parts of potassium dihydrogen phosphate, 7.5 parts ofpotassium sulfate, 0.09 parts of a microbial agent, 6 parts of traditional Chinese medicine slag, 14 parts of diatomaceous earth, 4 parts of a soil activator and 4-5 parts of sweet potato germ oil. The compound fertilizer is suitable for the germination and ripening stage of sweet potato, improves soil fertility, can loosen the soil to increase soil organic matters, and reduces the occurrence ofroot pests and diseases.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, and in particular relates to a special compound fertilizer for increasing the production of sweet potatoes. Background technique [0002] Sweet potato is an important food crop and economic crop, and plays an important role in people's livelihood and national economy. Effective use of limited land resources to improve the yield and quality of sweet potato crops is the direction and eternal subject of people's efforts. [0003] The growth and development of sweet potatoes need to absorb more than 20 kinds of mineral elements, mainly including nitrogen, phosphorus, and potassium, three major elements; sulfur, calcium, magnesium and other constant elements, and iron, manganese, boron, and copper. Zinc, sodium and other trace elements. The growth of sweet potatoes requires the most nitrogen, followed by phosphorus and the least potassium. In addition, zinc plays a positive role in the synthesi...

AI Technical Summary

Problems solved by technology

However, during the use of urea, it is easy to lose through volatilization, leaching, decomposition and runoff, resulting in low fertilizer utilization rate. According to statistics, the seasonal utilization rate is only about 30%, which not only causes waste of chemical fertilizers, but also Pollution of air, water, soil and other environments on which human beings depend

[0005] At present, there is a lack of fertilizers that can effectively promote all stages of sweet potato growth