Cotton interplanting technology of red bean planting technology
Cotton and red bean intercropping is a successful and efficient planting mode. Although the yield is slightly lower than that of cotton melon and cotton onion, it is easier to be accepted than other intercropping models, and it is easy to be accepted. Xingtai, Zhangzhou, Hengshui and other places have been adopted. 1. Planting style of cotton interplanting technology for red bean cultivation technology
The cotton is planted in large and small rows, with a large row spacing of 70-90 cm and a small row spacing of 40-50 cm. The large row is made into a row of small red beans. The cotton density is 4000 plants per mu. The red bean plants are 10 to 15 cm apart, and 5,000 to 7,000 plants per mu.
Second, the yield benefit of cotton interplanting technology of red bean planting technology
Cotton intercropping small red beans, generally does not affect cotton production, red bean yield is generally 30 to 40 kg, mu increased 120 to 160 yuan.
3. Cultivation techniques of cotton interplanting technology for red bean planting technology
1. Select the land. Because the salt tolerance of red adzuki beans is very low during growth, it is easy to cause dead seedlings or no seedlings in saline-alkali soil. Therefore, cotton and red bean intercropping are suitable for salt-free alkaline plots with better water and fertilizer conditions.
2. Choose the appropriate red bean varieties. Choose varieties with compact, early maturity and high yield, such as Zhonglv No.1 and Baihuahong Adzuki.
3 Apply enough base fertilizer, increase the application of phosphate fertilizer, and pour the bottom water. It is necessary to combine the winter and spring to apply the base fertilizer, because the red bean needs more phosphorus, and the application of phosphate fertilizer has obvious effect on increasing the yield of cotton and beans. 15 days before sowing, you should pour the bottom of the water to ensure that the whole seedling is broadcast.
4. Sowing at the right time. Red adzuki beans can be sown a few days in advance or in the same period as cotton, and the sowing date is too late, which will prolong the symbiotic period of cotton beans. The general sowing period can be arranged in the middle and late April.
5. Watering at the right time. On June 20th, the red bean grows and pods, and the cotton enters the stage of Shenglei. At this time, the lack of water will directly affect the cotton bean yield. This period is just the dry season before the rain arrives. It is necessary to water the drought. of.
6. Timely harvest. The harvesting period of the red bean should be determined according to the principle of “the pods are not equal, the time is not equal to the podsâ€. When the 70% pod angle turns black, the harvest is completed. If the red bean matures late, when the cotton enters the flowering stage, it should also be removed once, so as not to affect the cotton growth. If some varieties are too long at maturity, in order to prevent premature pods from bursting, mature pods can be harvested in batches.
7. Management of cotton fields after receiving beans. First, after the soybean meal is pulled out, it can be combined with the soil to be pressed on the spot. Before the cotton is cultivated, the urea is about 10 kg. The second is to re-apply flower and bell fertilizer, fertilizer and water combined, generally apply 10 to 15 kilograms of urea per mu, add compound fertilizer or organic fertilizer, and ditch deep application. The third is the timely topping, sticking to the principle that the branches are not equal and the time is not equal, usually the top of the game on July 15. The fourth is to do a good job in chemical regulation. Generally, when the first fruit branch of the upper part is budded 2 to 3, the control is repeated. Each acre is sprayed with 3 to 3.5 grams of water to 40 kg of water. If the fertilizer meets, Increase chemical control twice; generally advocate light control, increase the number of times, the concentration should be light. The fifth is to control pests. When there are 100 larvae of cotton bollworm in 100 plants, it is necessary to prevent and control them in time.
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