Millet is a kind of crop that needs a lot of fertilizer, so we must grasp the fertilization to harvest, then, how to fertilize the high yield of millet?
1. Base fertilizer and seed fertilizer. Applying the base fertilizer is the basis for achieving high yield of millet. All organic fertilizer, phosphate fertilizer, potassium fertilizer, micro-fertilizer and about 1/3 of nitrogen fertilizer can be applied as base fertilizer. Applying the seed fertilizer is also an effective stimulation measure. It uses about 3 kilograms of diammonium phosphate or urea per 667 square meters, and is applied to the ditch with the seeds at the time of sowing. If the soil is dry, pay attention to reduce the amount of fertilizer and separate the seeds from the fertilizer to avoid affecting emergence.
2. Pull the joint fertilizer. Medium and low fertility conditions and fertilizers should be applied immediately after jointing. The amount of fertilizer applied accounts for 45% to 50% of the total amount of nitrogen fertilizer. Areas with short frost-free period and varieties with long growth period should be applied early and heavy fertilizers should be applied to avoid the late maturity of millet. High-yield fields with good soil fertility and base fertilizer should be lightly applied with fertilizer, and joint fertilizer should account for less than 30% of total nitrogen. Simplified cultivation can combine jointing fertilizer and panicle fertilizer into one application, and the application time is later than that of jointing fertilizer, but not later than the booting stage.
3. Spike fertilizer. Spike fertilizer should be applied 7 to 10 days before heading, high yield fields must increase the amount of panicle fertilizer, 40% to 50% of total nitrogen should be applied as panicle fertilizer, and low yield fields should use 20% to 25% of total nitrogen as ear. fat. The application of panicle fertilizer can be combined with cultivating soil and watering. If there is a phenomenon of de-fertilization during the flowering period of millet, a small amount of nitrogen fertilizer should be applied in combination with watering, especially in the sandy soil with poor fertility, the number of topdressing should be increased, and the fertilizer should be added at any time. In the filling stage, the method of root external spraying can be applied as appropriate. Spraying 0.5% to 1% urea solution or 0.2% potassium dihydrogen phosphate solution, spraying 50-60 kg per 667 square meters, can extend the functional period of the leaf and increase the grain. weight.
4. Foliar spray of boron. When foliar spray is used, the concentration, amount, spray period and number of boric acid solutions should be correctly applied.
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