Suggestions on the Control of the Fourth Generation White-backed Rice Planthopper
The medicament uses 40% chlorpyrifos (Xinnongbao, Saiben) 100ml / mu plus 25% buprofezin (buprofezin) 50g / mu plus 5% Jinggangmycin 200ml / mu (or 30% Aimiao 15ml / mu) flushing 30kg fine spray.
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Guangshu 87
Characteristics: plant type semi-erect, medium-short vine, medium number of branches, top leaf green, leaf shape deep complex, leaf vein light purple, stem green. The sprouting ability is good and the seedling stage is vigorous. Tubers are concentrated, the number of tubers per plant is more, generally 5 to 9, the ratio of large and medium potatoes is 76%, the potato shape is inflated, the potato skin is red, the potato meat is orange, the potato body is smooth, beautiful, the potato pieces are uniform, and the storability is good. The dry matter rate is 28.5%, the taste score is 82.0, and the starch rate is 19.75%. Steamed cooked food has a strong flavor of powder and potato, and has a good taste. Medium resistance to potato blast
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Introduction of famous and high-quality varieties of sweet potato
Which variety of sweet potato to choose depends on the market demand and what it is used for, and at the same time, the local cultivation ecological conditions, especially soil diseases, should be considered. According to the test, after detoxification, the yield can be increased by 20% and 30%, and its appearance and merchandise have been improved. Therefore, the selection of virus-free sweet potato varieties is the prerequisite for high yield of sweet potato. The overall goal is to select virus-free sweet potato varieties with disaster resistance, disease resistance, high quality, high yield and high efficiency. According to the national sweet potato regional test and many years of production practice, all kinds of excellent sweet potato varieties are introduced as follows for reference.
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