After the wheat flowering, it enters the critical period of yield formation. Spraying foliar fertilizer during the period from flowering to grain filling can effectively increase yield and quality.
First, spray method
1. Spray multi-dimensional potassium dihydrogen phosphate with 99.5% multi-dimensional potassium dihydrogen phosphate 100 g, 30 kg evenly sprayed water, once a week, spray 2 to 3 times, can increase grain, increase weight, promote grouting, improve Wheat disease resistance, lodging resistance, late dry hot wind prevention, promote early maturity.
2. Spray the leaching solution from the ash to take 5-10 kg of fresh ash without rain, add 100 kg of fresh water, stir well, soak for 12-14 hours, and take the clarified solution, such as adding 2% superphosphate leaching solution mixed spray effect better. Usually interval 7 to 10 days once, even sprayed 2 to 3 times, not only can increase nutrients, promote full grain, and has a good anti-insect pest, anti-lodging effect.
3. Spray biogas slurry to digest the biogas slurry after anaerobic fermentation for more than 45 days from the pressure of the biogas digester, park it for 2-3 days and then spray it with pure biogas slurry. The amount of mu is 30 kg. When the temperature is high, add appropriate amount of fresh water to dilute it. Then spray, so as not to cause rapid evaporation caused by the concentration of burned leaves. Usually 7 to 10 days once, even more than 3 times spray, can play a strong role in strong stalks down, increase production, improve quality, disease resistance pest control.
4. During the flowering period, the sprayed wheat will be sprayed with 75-125 grams of borax per mu and diluted with water to 50-75 kilograms of foliar spray. This will accelerate the development of florets, promote the extension of pollen tubes, and increase the seed setting rate and 1000-grain weight.
Second, the matters needing attention
1. When spraying, make every effort to make the leaves wet and not drip. The time is best before 9 o'clock in the morning and after 4 o'clock in the afternoon, especially from 4 o'clock in the afternoon to 5 o'clock in the afternoon. In the case of a barley field with poor weight and poor sensation, or a dry hot wind during the spraying period, it is necessary to increase the number of spraying fertilizers as appropriate. Wheat fields with pests and diseases can be properly treated with pesticides in the fertilizer solution. Spraying fertilizer during the flowering period should be staggered between 9am and 11am and 3pm and 6pm, respectively. Two peaks of flowering will occur. Otherwise, the pollen tube will burst due to water absorption, affecting the fertilization and fertility, leading to a reduction in yield.
2, plant ash must be fully immersed, so that the effective ingredients completely dissolved in water can play its role in increasing production, should not be used with the bubble.
3. In case of rain within 12 hours after spraying, spray should be done after sunny days.
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