What kind of fertilizer can the beans listed in the four seasons produce high yield? These water management tips need to be known!

Bean, also known as cowpea, cowpea, belt bean, is one of the popular vegetables widely cultivated in northern China, which can be produced annually and listed in four seasons. What kind of fertilizer should be applied to beans to achieve high yield? What are these fertilizer and water management skills?

What kind of fertilizer should be applied to beans in order to achieve high yield?

1. Apply base fertilizer

The base fertilizer is mainly based on the application of mature organic fertilizer, combined with the appropriate proportion of compound fertilizer.

Generally, 500-1000 kg of farm manure, 50 kg of superphosphate and 50 kg of ternary compound fertilizer (15-15-15) are used per mu. When the base fertilizer is applied during the soil preparation and ridging, you can open a small trench on the planting ridge, and then put the base fertilizer in the ditch and cover the soil. If you use this method of fertilization, we must remember that bean seedlings can not be planted directly in the organic fertilizer ditch, to ensure that the distance between bean seedlings and organic fertilizer ditch is 10-15 cm. Avoid burning the roots of bean seedlings due to direct contact with fertilizer.

two。 Topdressing

When the soil of bean vine is fertile or the basal fertilizer is sufficient, the first topdressing is extended to the tending stage (about 35cm of plant height). On the contrary, the first compound leaf should grow before the vine, and 10% manure urea should be applied after topdressing. Blossom and bear pods, re-apply topdressing per 667m2, apply compound fertilizer 20kg, topdressing 50% human feces and urine 2500~5000kg every 7-8 days, and add calcium superphosphate 15kg, dilute it with water, apply wet-stirred fine soil, and apply 1-3 times at the opening point.

3. Spraying foliar fertilizer

Beans often show a variety of symptoms of lack of trace elements, such as yellow leaves, in the middle and later stages of growth. Foliar fertilizer should be sprayed in the early growth stage, that is, seedling stage and vine stage. If it is used again when yellow leaves are found, the effect will be greatly reduced.

Second, what are the management skills of bean fertilizer and water?

1. The nutrition of bean plant is the key to increase inflorescence and pod formation. Sufficient basal fertilizer can promote root growth and rhizobium activity, form root nodules, make stem vines grow healthily in the early stage, differentiate more flower buds, and lay the foundation for high yield. Base fertilizer generally applies 2000 kg to 3000 kg of high-quality organic fertilizer, 25 kg to 30 kg of superphosphate and 50 kg of plant ash per mu.

two。 Before flowering and podding, beans do not have high requirements for water and fertilizer conditions, and are mainly controlled in management. Basic fertilizer is sufficient, generally no longer topdressing, when the weather is dry, it can be properly watered. If there is too much water and fertilizer, the stems and leaves will grow, causing the inflorescence nodes to rise and the number to decrease, and it is easy to form empty vines in the middle and lower parts. When the plant sits and the next few inflorescences appear, it is combined with topdressing and watered once, with 10kg of ternary compound fertilizer per mu and 20,30 cubic meters of irrigation.

3. After podding, always keep the soil moist, and then irrigate and topdressing once every 1-2 weeks to keep the plant growing healthily and blossom and bear pods. When entering the peak harvest period of pods, you need more water and fertilizer, so you can apply urea 10 kg per mu, calcium superphosphate 20 kg 25 kg, potassium sulfate 5 kg or plant ash 40 kg, and irrigation 20-30 cubic meters per mu. If the supply of water and fertilizer is insufficient, the plant is easy to decline and fall flowers and pods.

In addition to getting nutrients from soil and photosynthesis, water and fertilizer is an important part of increasing yield, so if you want to get high yield, you must do a good job in water and fertilizer management.