Cultivation method of eggplants with low nitrate content

Abstract

The invention discloses a greenhouse shed cultivation method of eggplants with low nitrate content. The method mainly comprises the steps as follows: A, a greenhouse shed is built; B, soil preparation, ditching and ridging are performed; C, a base fertilizer is applied; D, the eggplants are transplanted; E, additional fertilizers are applied and a nitrification inhibitor is applied in a matching manner; F, a growth regulator is sprayed; G, a micro element fertilizer is applied; H, the shed is opened for field drying during every sunny day at a fruit setting stage; I, diseases, pests and weeds are prevented; and J, the eggplants are harvested in batches at a maturation stage. By the aid of the method, the nitrate content in the eggplants can be substantially reduced, and the output of the eggplants and the content of vitamin C and soluble sugar in the eggplants are increased, so that the quality and the edible safety of the eggplants are improved; besides, organic fertilizers and inorganic fertilizers are applied in a matching manner and combined with the nitrification inhibitor, the micro element fertilizer and a growth regulator, so that fertilizers are promoted by fertilizers, the utilization rate of a nitrogen fertilizer is increased, the environmental pollution risks are reduced, the soil structure can be improved when agricultural production is conducted, and the combination of utilization and maintenance of vegetable fields is realized.

Description

technical field [0001] The invention belongs to the technical field of facility cultivation of vegetables, and more specifically relates to a greenhouse cultivation method of eggplant with low nitrate content, so as to reduce the nitrate content in the eggplant and improve the quality and food safety of the eggplant. Background technique [0002] Eggplant has a long history of cultivation in my country, with a history of nearly two thousand years ago. Our country has begun to plant and eat eggplant at least in the Han Dynasty. my country's eggplant germplasm resources are very rich, and there are large-scale plantings in both the north and the south. It is one of the popular edible vegetables that people like very much. Regular consumption of eggplant can prevent and treat many diseases. Nutrition expert Li Shuyun analyzed that the disease prevention index of eggplant is 26.29, and the vitality index is 9.7142, which proves that it has a very high value for the recovery of d...

AI Technical Summary

Problems solved by technology

As a result, in the process of vegetable cultivation, farmers blindly apply a large amount of chemical fertilizers, especially nitrogen fertilizers, in order to pursue high yields and economic benefits, resulting in serious accumulation of nitrate nitrogen in the soil, which not only causes an imbalance in the proportion of soil nutrients, but also seriously exceeds the standard for nitrate content in vegetable production. Studies have shown that excessive fertilization can cause spinach to contain as much as 3600 mg of nitrite per kilogram of dry weight, posing a huge threat to human diet health

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