Excerpted from China Agricultural Press> Ultrasonic Bath,Ultrasonic Parts Cleaner,Heated Ultrasonic Bath,Ultrasonic Bath Branson Ningbo Cland Medical Instruments Co., Ltd. , http://www.cland-med.com
Summer sweet potato high yield five measures
In recent years, with the rapid development of the deep processing industry chain of sweet potatoes, the planting area of ​​sweet potatoes has been increasing year by year, and in particular, the planting area of ​​summer sweet potatoes has grown faster. In order to achieve high yields of summer sweet potato, the following five measures should be taken: First, timely planting of summer sweet potato in early planting can promote early growth, early tuberization, early ridge closure, and extend the expansion period of tubers. The summer sweet potato must be planted early in time, and strives to finish planting in early July so that the growth period can reach 110 days or more in order to obtain high yield. The second is to lay a potato ridge potato ridge is an important factor affecting summer sweet potato production. After the rain hit the ridge soil easily compacted, unfavorable expansion of the potato block, should grab dry sunny days beat potato ridge, increase soil voids, increase permeability and water retention capacity, maintain the permeability of potato ridge. Third, the application of basal sweet potato sweet potato growth period is short, increase the application of basal fertilizer, in particular, hurried Miaofei, can promote the rapid growth of stems. Basal fertilizer is generally 2500-3000 kg of organic fertilizer applied in Mushi, and it is best to apply more available potassium fertilizers such as plant ash, and apply 10-15 kg of ammonium diammonium phosphate in the ridge. In order to promote the early emergence of potato seedlings, 30-40 kg of organic fertilizer can be applied to the acre at the time of planting. Fourth, the planting of sweet potato is a good potassium crop. When transplanting, it uses bacteriostatic roots containing microorganisms that contain potassium-dissolving bacteria. It can stimulate the roots to express early, increase the ability of drought resistance, shorten the seedling period, and reduce Early, high output. Fifth, the yield of summer planting of sweet and sweet potato is relatively low. Generally, small ridges are used for planting. The ridge spacing is 60-70 cm, the plant spacing is 15-20 cm, and the planting amount is 5000-6000.