Nationally Approved Variety - Xiangnong Oil 571
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Xiangnongyou 571 was the medium-late and late-maturing rapeseed type of medium-late and late-breeding that was developed from the introduction of high-yield and high-quality rapeseed varieties in Sweden after many years of cross breeding by Guan Chunyun, Hunan Agricultural University. The first place in the national regional test for the participating test varieties has passed the examination and approval by the National Crop Variety Approval Committee, and the validation number is Guojian Oil 980001. The variety has many characteristics, such as large production potential, wide adaptability, good stability, high quality, and strong resistance to disease. In 1999, it was listed as a national key promotion variety. Has been planted in Hunan, Hubei, Jiangxi, Anhui and other places, the effect of increasing production is obvious. This year, it has expanded demonstration and promotion of rapeseed production areas in 9 provinces across the country. Characteristics: Plant height is about 170 centimeters, effective branching is 8-10 at a time, horns is more than 20 grains, grain is dark brown, 1000 grams weight is 4 grams, and the whole growth period is about 210 days. Cultivation points: 10 seedlings transplanted in early September sowing, mid-to-late October, transplanting; live in mid-September, late to early October sowing. Nursery transplanting planted 10,000 per acre or so, planting about 15,000 plants per acre, and time and seedlings. In the high incidence area of ​​sclerotia, attention should be paid to the control of sclerotinia, and the sclerotia can be sprayed about 1 week after the initial flowering period. The dosage is 100 grams per mu and 50 kg water. Seedlings control aphids, cabbage caterpillars, pay attention to clean drainage after spring.