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杂交水稻威优64在我区大面积作双晚栽培能否充分发挥其优势,将有赖于生态环境的优劣,其中抽穗结实期间的气候条件是一个主要因素。弄清其影响所及,有针对性地研究改善农田小气侯,提高栽培水平,趋利避害,才能进一步取得稳定高产。根据荆州地区气候特点,我们于1984—1985年,采取分期播种试验,就气象条件主要是日平均温
Hybrid rice Weiyou 64 in our area for double-night cultivation can give full play to its advantages, will depend on the ecological environment, including the climax of the climatic conditions is a major factor. To understand its impact, targeted study to improve the microclimate of farmland, raise the level of cultivation, profit and avoid disadvantages, in order to further achieve stable and high yield. According to the Jingzhou climate characteristics, we in 1984-1985 to take staged sowing test, the weather conditions are mainly average daily temperature