Summer soybean flowering management points

March 08, 2020

1. Intertillage: the late flowering period of summer soybean and the period of vegetative growth and reproductive growth at the same time. During this period, the temperature is high, the light is strong, and the plant grows fast. Generally, the average plant height increases by 2-3 centimeters per day. Easy to grow long and lay down production. Therefore, cultivating the summer soybean before flowering and mulching should be done once, so that the soil maintains good permeability to facilitate the development of the root system and increase the lateral roots.
2. Watering: The flowering period is a critical period for summer soybean water demand. Drought at the initial stage of flowering can cause plants to fall. By the end of flowering, the vegetative growth of the plant reached a peak, the metabolism was strong, and the water consumption was large. At this time, if the moisture content of the soil was reduced, it would easily lead to physiological water shortage of the plants, causing a large number of flower buds to fall off.
3. Topdressing: Early flowering period should be followed by 5 kg of available nitrogenous ammonium nitrate, 150-200 g of monopotassium dihydrogen phosphate per acre and 50 kg of foliar sprayed on the surface of the leaf to promote flowering and scabbing and improve quality.
4. Spraying: Summer soybeans have weak resistance to the bad environment during the flowering period. If chemical agents are sprayed at this time, the buds will fall off and the grains will increase. If pests and diseases need to be controlled during the flowering period of summer soybeans, it is best to choose to do it after 4:00 pm, and strictly control the dose and concentration.

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