What medicine should be sprayed during the flowering period of long beans to prevent the flowers from falling off (what medicine can be used to increase the yield of long beans)

What pesticide should be used to produce more pods and flowers?

Beans are relatively drought-tolerant crops with deep root systems, and they tend to grow too vigorously. Excessive growth includes excessive stem and leaf growth and premature aging, and then few flowers and pods.

For the cultivation of beans, it is recommended to supplement several trace elements during the flowering and podding period to promote flowering and pollination, promote more podding, and extend the harvest period.

The nitrogen fertilizer should be controlled during the seedling stage of beans to avoid causing the pods to be incomplete and affecting the growth and quality of beans. Many farmers will apply manure and other farmyard manure.

This type of farm manure must be used after it is decomposed (about 2-3 months in the tank) to avoid root burn. Manure water can be used from the seedling stage to the fruiting stage.

It is recommended to supplement boron and molybdenum before and after flowering of beans. Boron promotes flowering and pollination, can promote pollen germination and pollen tube elongation, affect the transportation of photosynthetic products, and is an indispensable reproductive element for beans.

It is generally not recommended to use borax, as it contains many impurities and cannot be mixed with many fertilizers and pesticides. In addition, it dissolves slowly and is inconvenient to use. You can use a boron source library that dissolves quickly in water. It has high purity and high absorption efficiency, and 20 grams can be used per acre of land.

Boron source pool, containing 20.5% boron, quickly dissolves in cold water, efficiently supplements boron to increase pollination rate, promotes strong seeds and other effects. When mixed with molybdenum fertilizer, it promotes pollination, strengthens seeds and grains, and fixes nitrogen to enhance nutrition.

Molybdenum fertilizer is a trace element required by leguminous crops, which can fix nitrogen by themselves. According to research, about 30%-50% of the nitrogen fertilizer required by leguminous crops in their lifetime is self-fixed nitrogen.

This type of nitrogen fixation is also beneficial to the nutritional balance of the plant itself, and will not cause excessive nitrogen leading to excessive growth.

Molybdenum is a key element that affects nitrogen fixation in beans. It is recommended to spray it during the seedling stage and the flowering and podding stage. You can use a high-efficiency sugar alcohol molybdenum fertilizer, the molybdenum source pool. Just add 20 ml to a 30-jin bucket of water. It is usually sprayed together with the boron source pool.

When phenomena such as premature leaf aging appear in the later stage, you can spray 99.7% potassium dihydrogen phosphate once. It is recommended to dilute it with 500-800 times water for spraying, which will help reduce premature leaf aging and improve pod quality.

During the flowering period and pod swelling period of each crop of beans, spray 1500 times diluted 0.01% brassinolide aqueous solution + 2000-4000 times diluted 3% gibberellic acid emulsifiable concentrate once.

Generally, the spraying interval is about 10 days, which can promote the growth rate of beans and increase their thickness, prevent premature aging of plants, advance the picking time and increase the yield of beans.

When beans show symptoms of boron deficiency, you can spray 500 times diluted amino acid molybdenum + 1200-1500 times diluted Sulobor before flowering. This can increase the pod setting rate and reduce phenomena such as flower and pod falling and pod bending.

From the flowering period to the fruiting period, spray 0.3% potassium dihydrogen phosphate once every 7 days, for a total of 3-4 times, to increase the fullness of the grains.

If the plant shows signs of premature aging, you can spray urea solution 1-2 times. Urea can be mixed with potassium dihydrogen phosphate.

Water and fertilizer management during the flowering period of beans

The period before and after the flowering of beans is the stage of rapid growth. In this period, in addition to spraying pesticides, water and fertilizer management, environmental management and other work need to be done well.

Beans prefer warmth during their growth process, cannot withstand frost, are not very demanding on sunlight, and are relatively drought-resistant, but the seeds need a certain amount of water when germinating.

If the soil is too dry in the early stage of planting, it will have a certain impact on the emergence of beans. But if there is too much water, there will be a lack of seedlings.

Therefore, it is necessary to control the water content during the flowering process of beans. If there is too little water during the flowering period, the flowers will fall prematurely. Therefore, it is necessary to water the beans properly to meet the water needs of the beans.