Combination of soil preparation and rational application of fertilizer before sowing
Immediately into the season of cotton sowing, then how to rationally fertilize cotton before sowing with soil preparation? In the March 6th when sending technical data to model households, some people asked such questions. Now the points for fertilizing are summed up as follows: The principle of “foot, light, steady, heavy, and complementary†should be mastered for cotton fertilization. , Early application of light to raise seedling fertilizer, stable Shi Lei fertilizer, re-apply flower bell fertilizer, make Shi cover fertilizer. According to "nitrogen, phosphorus, potassium, with micro" method. Basal fertilizers should be dominated by organic fertilizers, combined with chemical fertilizers. Organic manure mainly includes compost, manure, earth miscellaneous fertilizer, cake fertilizer, pond mud, and green manure. The amount of basal fertilizer should reach 60% to 70% of the total fertilization in the whole growth period. General production of cotton in the middle of the Mushi organic fertilizer 1500? 2000 kg, ammonium bicarbonate 25? 30 kg, 40? 50 kg of superphosphate, potassium sulfate or potassium chloride 8? 10 kg, borax 0.5? 0.75 kg. Organic manure, phosphorus, potassium fertilizer, and boron fertilizer are all used as base fertilizers. Combined with autumn and winter or spring plowing, nitrogen fertilizers are applied to the soil with a depth of about 10 cm in combination with site preparation.
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