(1) Selection of varieties with resistance to large spot disease or light leaf spot disease such as Chiza 5, Longza 4, Songza l. (2) Strengthen management of Gaotian. When the autumn leaves turn over, the sick plants are fattened or burned, reducing the source of bacteria. (3) Add compost of organic fertilizer or fermented bacteria to promote the application of active organic (dung) fertilizers for furrows, apply 2500kg per 667m2, and cover soil after the furrows. It can also be sprayed with 800 times of Opal Organic Active Liquid Fertilizer or 500 times of “Easy-Effective†Microorganism Organic Fertilizer. (4) Strengthen agricultural control. Appropriate early sowing, to avoid the peak of disease. Apply base fertilizer and increase phosphorus and potassium fertilizers. We should do a good job of cultivating weeds and soils, remove the bottom 2-3 leaves, reduce the relative humidity in the field, make the plants robust, and increase the resistance to disease. After sorghum harvested, clean the pasture, concentrate the straw, and use the high-temperature fermentation as a compost. Implement rotation. (5) Chemical control. For higher-value breeding materials, 50% carbendazim WP 500-fold or 50% thiophanate-methyl WP 600-fold, 75% chlorothalonil can be sprayed from the end of the heart to the tasselling stage or the early stage of disease. WP 800 times, 25% benzophenone EC 800 times, 40% EKL 800 to 1000 times, agricultural antibiotics 120 200 times, once every 10 days, continuous control 2 or 3 times . Usually before the disease spreads, it can be controlled before and after sorghum tasseling. When the disease rate in the field reaches more than 70% and the diseased leaf rate is about 20%, spraying is started. The types of agents with better control effects are: 50% carbendazim WP, 50% amifenoxone WP or 90% MXC, all added 500 times of water, or 40% of GFMS 800 times. The use of liquid medicine per mu 50 kg to 75 kg, sprayed every 7 days to 10 days, a total of 2 times to 3 times. SMART Digital Bluetooth Hearing Aids SMART Digital Bluetooth Hearing Aids Shenzhen Sunshine Technology Co.,Ltd , https://www.szyatwin.com
How to prevent and cure sorghum
The sorghum spot pathogens overwinter on mycelia. The first infestation and reinfestation of spore germination in the next year may result in heavier damage in July. The year when more than one business is popular is popular, resulting in a large area of ​​sorghum.