A special chelating fertilizer for leafy vegetables
A technology for leafy vegetables and vegetables, applied in the fields of leafy vegetable planting and fertilizer production, can solve the problems of complex preparation and process, low fertilizer utilization rate, soil salinization, etc., and achieve good application environment and high fertilizer utilization rate , easy absorption effect
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Embodiment 1
[0014] The weight components of each raw material of the special chelate fertilizer for leafy vegetables involved in this embodiment include 24.3 parts of sorbitol, 16 parts of urea, 13.2 parts of potassium nitrate, 4.4 parts of diammonium hydrogen phosphate, 45.5 parts of high-purity water, nonionic polyacrylamide 0.5 servings.
[0015] The specific preparation steps of the special chelating fertilizer for leafy vegetables involved in the present invention are as follows:
[0016] (1) Weighing: first weigh 24.3 parts of sorbitol, 16 parts of urea, 13.2 parts of potassium nitrate, 4.4 parts of diammonium hydrogen phosphate, 45.5 parts of high-purity water, and 0.5 parts of nonionic polyacrylamide by weight components, and set aside;
[0017] (2) Preparation of sorbitol mother liquor: then dissolve 24.3 parts of sorbitol into 25.5 parts of high-purity water and put it into a reaction kettle, set the water bath temperature to 55°C, heat at a constant temperature, and keep stirri...
Embodiment 2
[0024] The difference between the present embodiment and Example 1 is that each raw material weight component of the special chelating fertilizer for leafy vegetables comprises 18.7 parts of sorbitol, 6.3 parts of urea, 16.6 parts of potassium nitrate, 5.4 parts of diammonium hydrogen phosphate, 52.8 parts of high-purity water, 0.5 part of nonionic polyacrylamide, its preparation method is the same as that of Example 1, only the weight components of each raw material are replaced. The present embodiment chooses spinach as the experimental object, with the different fertilization types of the same planting area as the control group, the special fertilizer of the present embodiment adopts the foliage spraying method, and the per mu consumption of the special fertilizer of the present embodiment is 12.5 kilograms, diluted with water 20 times, in Spray evenly on the leaves of spinach on a sunny and windless evening. As can be seen from Table 2: the application rate per mu of spina...
Embodiment 3
[0028] The difference between the present embodiment and Example 1 is that each raw material weight component of the special chelating fertilizer for leafy vegetables comprises 15 parts of sorbitol, 5 parts of urea, 10 parts of potassium nitrate, 3 parts of diammonium hydrogen phosphate, 45 parts of high-purity water, 0.5 parts of non-ionic polyacrylamide, the preparation method is the same as in Example 1, only the weight components of the raw materials are replaced. In this example, Chinese cabbage is selected as the experimental object, and the same planting area and different types of fertilization are used as the control group. In this example, The special fertilizer adopts the foliage spraying method. The amount of the special fertilizer in this embodiment is 7.8 kilograms per mu, diluted 100 times with water, and evenly sprayed on the leaves of the Chinese cabbage on a sunny and windless evening. The per-mu application rate of the special fertilizer in this embodiment is...
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