How to manage summer soybeans during the flowering stage? These key points you need to master
How should summer soybeans be managed during flowering? Here is an introduction. Summer soybeans can be managed during flowering by referring to the following methods: 1. Intertillage: The late flowering stage of summer soybeans and the period when vegetative growth and reproductive growth proceed simultaneously. During this period, temperatures are high, light is intense, and plants grow quickly, with the average plant height generally increasing by 2-3 cm per day, ...
How should summer soybeans be managed during flowering? Here is an introduction
Summer soybeans can be managed during flowering by referring to the following methods:
1. Intertillage: The late flowering stage of summer soybeans and the period when vegetative growth and reproductive growth proceed simultaneously. During this period, temperatures are high, light is intense, and plants grow quickly, with the average plant height generally increasing by 2-3 cm per day. In plots with high fertilizer and water levels, they are very prone to excessive growth and lodging, which reduces yield. Therefore, before summer soybeans close their rows at flowering, intertillage should be carried out once to keep the soil well aerated and permeable, so as to benefit root development and increase lateral roots.
2. Watering: The flowering stage is a critical period for summer soybean water demand. Drought in the early flowering stage can cause plants to drop flowers. By the late flowering stage, the vegetative growth of the plants reaches its peak, metabolism is vigorous, and water consumption is high. If the soil water content decreases at this time, it can easily cause physiological water deficiency in the plants and lead to a large number of flower and pod drop.
3. Topdressing: In the early flowering stage, quick-acting nitrogen fertilizer ammonium nitrate 5 kg should be applied as topdressing. In addition, 150-200 grams of potassium dihydrogen phosphate per mu should be mixed with 50 kg of water and sprayed on the leaves to promote plant flowering and pod setting and improve quality.
4. Spraying pesticide: During the flowering stage, summer soybeans have very weak resistance to adverse external conditions. If chemical pesticides are sprayed at this time, it is easy to cause flower buds to drop and increase the number of shriveled grains. If pests and diseases occur during the flowering stage of summer soybeans and pesticide control is necessary, it is best to carry it out after 4 p.m., and strictly control the dosage and concentration.
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