On September 6th, 2022, the yield of the first mature super hybrid rice "Weiliangyou 86 12" was measured in Mengzi Demonstration Base of Yuan Longping, mengzi city, Yunnan, with an average yield per mu 1068+06kg. This variety is planted as one-season mid-season rice in the middle and lower reaches of the Yangtze River, and the whole growth period is 133.3 days. Plant height 122.6 cm, panicle length 25.8 cm, effective panicles per mu154,000, total grains per panicle 2 12.3, seed setting rate 84.3% and 1000-grain weight 25.8 g.
Weiliangyou 86 12 is a rice variety bred by Yuan Longping Agricultural Hi-Tech Co., Ltd., Hunan Longping Hi-Tech Seed Industry Research Institute Co., Ltd. and Hunan Yahua Seed Industry Research Institute in 2020, with Huawei 338S as female parent and Huahui 86 12 as male parent. It belongs to indica two-line hybrid rice varieties.
Planting techniques of Weiliangyou 86 12
Sow in time, cultivate strong seedlings, plant mid-season rice in the middle and lower reaches of the Yangtze River in China, and sow early according to local ecological conditions. The sowing amount in paddy field is 0.75 ~ 1 kg per mu, and that in field is 0.75 ~1kg. Age-appropriate transplanting and planting basic seedlings: Generally, the transplanting leaf age of hydroponic seedlings is about 5.5 leaves, the transplanting seedling age is controlled within 30 days, the row spacing of transplanted plants is 20 cm× 26.7 cm, 2 rice seedlings are planted in each hole, and more than 60,000 basic seedlings are planted per mu.
Rational fertilization and scientific water management: the fertilizer demand level is moderate, with an average area of 10 ~ 1 1 kg of pure nitrogen, 6 kg of phosphorus pentoxide and 6.5 kg of potassium oxide. Re-apply base fertilizer, apply topdressing early, and strictly control the partial application of nitrogen fertilizer in the middle and late stages. Do a good job in water management, dry in time when seedlings are full, keep shallow water in the field from booting stage to heading stage, keep water in the field during filling stage, and cut off water 7 ~ 10 days before harvesting, which will not affect the quality and reduce the risk of cadmium pollution.
Refer to Baidu Encyclopedia-Wei Liangyou 86 12 for the above contents.