In the one month from the jointing stage to the heading stage, the topdressing method applies 8 kg of urea per acre to master the principle of “wet, deep, less, and smallâ€. "Wet" is better for soil; "deep" is for trenching or combined with cultivating and covering soil; "less" is the amount of lyrics; "small" is as much as possible when the seedlings are not too big, which is beneficial to root absorption. use. If no fertilizer is applied, in order to prevent premature aging, the foliar fertilizer can be sprayed at the heading stage according to the ground conditions, that is, after 50 kg of water plus 1 kg of urea, 1.8 kg of potassium dihydrogen phosphate and 1.8 kg of boric acid are used for the foliar surface. Spray.
The flowering stage of the control of the armyworm hybrid rice is the third generation of the armyworm. In the application of insects and insects, biological or chemical control should be carried out in time. Pay attention to the protection of the flower device, and at the same time master the spraying time and dosage, so as not to affect the pollination and firmness. Most of the millet blooms in the middle of the night, so you should never spray in the morning or in the morning, otherwise it will damage the flower and affect the fruit. According to the law of nighttime activity and overeating of armyworms, it is necessary to apply the medicine in the evening so that the medicine is easily adhered by the stems and leaves.
The anti-floating hybrid millet enters the filling stage and is easy to fall when it encounters wind. Therefore, spraying phosphorus fertilizer at the heading and flowering stage has a significant effect on reducing the rate of glutinous rice and increasing the 1000-grain weight, and has a strong stalk anti-falling effect. If there is lodging in the later stage, it is necessary to organize the manpower to raise it in time, and pay attention to starting from the opposite side of the lodging direction, bundle the small handle, and expose 2~3 functional leaves at the top to reduce the loss.
It is an important measure to prevent the glutinous rice from spraying the phosphate fertilizer from the heading to the filling stage. The method is to spray 400-500 times of potassium dihydrogen phosphate solution in the afternoon. At the same time, in the booting stage, it is best to use urea in conjunction with rainfall, 15 kg per mu. In this way, it has a significant effect on reducing the number of grains and increasing the number of full grains.
If the water is insufficient during the drought-preserving and flood-preserving filling period, it will affect the pollen development and reduce the amount of pollen, which is not conducive to fruiting. In the case of drought, light watering or inter-watering is adopted to reduce the temperature in the field and increase the humidity, which is conducive to flowering and pollination. Where there is no watering condition, spray water can be sprayed or the amount of liquid can be increased when spraying fertilizer. Millet is also a drought-tolerant and impatient crop. Before the rain comes, it is necessary to organize manpower and do a good job in flood control and drainage. When there is too much rainfall, dredge the ditch and drain it in time to facilitate root growth.
Early harvesting When the middle and lower parts of the ear become the color of the variety, the back shell of the grain is grayish white, the grain becomes hard, the stem section begins to shrink, mature, and breaks green, indicating that the whole ear is fully mature, which is the best time for harvesting. . (Jia Youjiang)
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