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杂交稻的生育特性与常规品种不同,其栽培管理也有差别,只有良种与良法相结合,才能充分发挥杂交稻的增产潜力.现就我省当前推广的黎优57(黎明_A×C57)杂交粳稻,谈谈栽培管理问题.1 黎明57具有大穗而兼有半矮秆株型的特点.在栽培上要注意发挥大穗的增产潜力.我省目前生产上种植的“丰锦”品种属多穗型品种,一般株高约110厘米,每穗成粒70粒左右,每亩保持27～30万穗,则亩产可达千斤水平.黎优57株高105～110厘米,每穗成粒100粒左右,每亩25万穗,亩产就可达1,200斤水平.
The reproductive characteristics of hybrid rice is different from conventional varieties, and its cultivation and management are also different, only the combination of good varieties and good law in order to give full play to the yield potential of hybrid rice.Currently popularized in our province Liyou 57 (Dawn _A × C57) hybrid Japonica rice, to talk about the cultivation and management issues.1 Dawn 57 has a large spike and has the characteristics of semi-dwarf plant type in the cultivation should pay attention to give play to the yield potential of large spike .Is currently grown on the production of “Feng Jin” Multi-spike varieties, the general plant height of about 110 cm, about 70 grains per spike, per acre to maintain 27 to 30 million spike, the mu up to a thousand pounds level. Liyou 57 plant height of 105 to 110 cm per spike About 100 grains, 250,000 spikes per mu, up to 1,200 pounds per mu level.