After entering the summer, the yam is about to enter the tuber enlargement period. During the middle period of growth, it is the period of vegetative growth and tuber enlargement. The high temperature and hot summer needs the scientific deployment of fertilizer and water supply, and the prevention and control of pests and diseases. Here are the key points in the management of yam during the middle and later stages in order to achieve high quality and high yields and increase planting efficiency. Fertilizer fertilizer when the yam stems and leaves full frame when the top dressing, acres of topdressing 15 to 20 kg of urea, can be topdressing potassium fertilizer or foliar spray to improve resistance and increase production. Yam is a drought-tolerant economic crop. In order to increase production, when it encounters continuous high-temperature and dry weather, it should be watered in time. In the case of continuous rainy weather, it is necessary to promptly eliminate water in the raft and prevent radon damage. Seedlings die due to lack of oxygen. Disease prevention and control Anthelmintic anthracnose is a common disease in yam production. Once it is found that there are lesions on the foliage, it should be sprayed and prevented in time. In the early stage of disease, 50% mancozeb WP can be used 500 times solution or 50%. Carbendazim 800 times foliar spray, usually spray 7 to 10 days, continuous spraying 2 or 3 times. Root-knot nematode is a big insect pest of yam, and mu can be spread evenly in the planting ditch with 3 kg of 5% phosphoric granules. It is advisable to collect yam harvest time from about the end of October to the beginning of winter. The general harvest begins at one end of the cocoon and first excavates a 60-cm square hole. The person sits on the edge of the pit and then uses a yam spatula to scoop along the root of the yam at a depth of 10 cm below the ground and shovels it all the way to the bottom of the mountain yams. To the tip of the tuber. The top of the yam plant is hand-carried, and the lateral roots are cut off along the tubers in one hand until the roots of the yam plant are affixed to the ground so that a complete yam can be removed. Lip Scrub,Lip Exfoliator,Lush Lip Scrub,Brown Sugar Lip Scrub Guangzhou Lingxue Cosmetics Co., Ltd , https://www.gzlxgj188.com
The three points of the management of yam growth