Chinese onion field planting fertilizer suitable for Shajiang black soil, and fertilization method thereof
A technology of sand ginger black soil and scallions, applied in the field of scallions planting fertilizer and its fertilization, can solve the problems of low proportion of chemical fertilizers, inappropriate fertilizer use period, and low content of available nutrients, so as to reduce the amount of chemical fertilizer application and save fertilizer input , the effect of reducing the content of nitrate and nitrite
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Embodiment 1
[0023] The percentages by weight of effective elements (in terms of pure nutrients) in the green onion planting formula fertilizer are: nitrogen 19.5, phosphorus pentanitride 12.1, potassium oxide 13.5, sulfate ion 3.6, calcium oxide 1.5, zinc oxide 0.56, and manganese oxide 0.95. Effective elements in fertilizers are provided by the following substances: nitrogen is provided by urea, ammonium bicarbonate, ammonium chloride and ammonium phosphate; phosphorus is provided by ammonium phosphate and superphosphate; potassium-potassium chloride; sulfur is provided by superphosphate, superphosphate, Manganese sulfate and zinc sulfate are provided; calcium - superphosphate; zinc - zinc sulfate; manganese - manganese sulfate.
[0024] The physical amount converted into commercial fertilizer or commercial preparation is selected from the following substances (measured by 1000kg scallion field planting formula fertilizer per 1 ton produced):
Embodiment 2
[0032] The percentages by weight of the effective elements (in terms of pure nutrients) in the green onion planting formula fertilizer are nitrogen 15.5, phosphorus pentoxide 13.6, potassium oxide 16.2, calcium oxide 2.8, sulfate 5.2, zinc oxide 0.35, and manganese oxide 1.3. The effective elements in fertilizers are provided by the following substances: nitrogen is provided by urea and diammonium phosphate and ammonium bicarbonate; phosphorus - diammonium phosphate and superphosphate; potassium - potassium chloride; calcium - superphosphate; sulfur - superphosphate Calcium phosphate, manganese sulfate and zinc sulfate; zinc-zinc sulfate; manganese-manganese sulfate; auxiliary material-attapulgite powder.
[0033] The physical amount converted into commercial fertilizer or commercial preparation is selected from the following substances (measured by 1000kg scallion field planting formula fertilizer per 1 ton produced):
[0034] 165kg of urea; 5kg of ammonium bicarbonate; 125kg...
Embodiment 3
[0041] In this implementation example, Baimiao Town, Linquan County, Anhui Province is selected as the fertilization test site, and the scallion species for testing is the common scallion widely cultivated. In this example, the content of effective elements in the green onion field planting formula fertilizer in terms of pure nutrients is as follows: nitrogen 22.5, phosphorus pentoxide 12.1, potassium oxide 10.6, calcium oxide 2.1, sulfate radical 2.9, zinc oxide 0.75, manganese oxide 0.52. The effective elements in fertilizers are provided by the following substances respectively: Nitrogen is provided by ammonium bicarbonate, urea and diammonium phosphate; phosphorus - diammonium phosphate and superphosphate; potassium - potassium chloride; calcium - superphosphate; sulfur - sulfuric acid Manganese, superphosphate and zinc sulfate; zinc - zinc sulfate; manganese - manganese sulfate.
[0042] The physical amount converted into commercial fertilizer or commercial preparation is...
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