Soil conditioner for preventing and controlling azotate pollution of facilities vegetable and method of producing the same

Abstract

The invention relates to a soil conditioner, in particular to a soil conditioner for conditioning the polluted soil by the nitrate in greenhouse vegetable, and a preparing method thereof, which solves the problems that the content of the nitrate in vegetable is higher. The soil conditioner comprises the following materials according to the weight percentage: 1.0 to 2.0 percent of nitrification inhibitor cyanamide dimmer (DCD), 1.0 to 2.0 percent of 3,4-dimethyl pyridine phosphate (DMPP), 45 to 52 percent of natural zeolite, and 45 to 52 percent of lignite calculated. The preparing method for soil conditioner comprises the following steps: the nitrification inhibitor DCD, DMPP and the natural zeolite powder are uniformly mixed, then the mixture is mixed with the lignite and sufficiently stirred, and prepared into the soil conditioner after being uniformly mixed. The soil conditioner and the preparing method have the advantages that the method is simple, the soil conditioner is pollution-free, the content of the nitrate in the greenhouse vegetable can be remarkably reduced, the soil physical and chemical characteristics can be improved, the content of the nitrate in the vegetable can be reduced, and the product quality of the greenhouse vegetable can be enhanced.

Description

technical field [0001] The invention relates to a soil conditioner, in particular to a soil conditioner for preventing and controlling vegetable nitrate pollution in facilities and a preparation method thereof. Background technique [0002] China's vegetable planting area is 19.7 million hectares, of which the protected vegetable cultivation area reaches 2.5 million hectares, accounting for more than 80% of the world's total protected vegetable area. The problem of nitrate pollution in my country's facility vegetable fields is relatively serious, which directly affects the safe production of vegetables and food safety. [0003] Compared with developed countries, my country's vegetable fields, especially facility vegetable fields, have the following unique characteristics: First, the intensity of land use is high, the frequency of use is high, the multiple cropping index is high, and the planting density is large. Facility vegetable fields are recycled, and there is basicall...

AI Technical Summary

Problems solved by technology

(2) Long-term partial application of nitrogen fertilizer, nitrogen, phosphorus, and potassium nutrients are unbalanced

(3) The harvest period is unreasonable

Images