【摘 要】
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陆川县地处桂东南,光温水资源十分丰富。历史上以种植双季稻为主。但历年来早稻产量很不稳定,一增一减波动性较大。通过农业气候资源调查和区划,我们发现“龙舟水”与早稻产
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陆川县地处桂东南,光温水资源十分丰富。历史上以种植双季稻为主。但历年来早稻产量很不稳定,一增一减波动性较大。通过农业气候资源调查和区划,我们发现“龙舟水”与早稻产量的丰欠有密切的关系。研究其危害机制和指标及一般变化规律,以便趋利避害,夺取稳产、高产。 一、“龙舟水” 的危害 机制和指标 “龙舟水”是指每年早稻生长季节中期出现的阴雨天气,而不是一、二次大雨或暴
Luchuan County is located in southeastern Guangxi, light and warm water resources are very rich. The history of double cropping rice-based. However, over the years, the output of early rice has been very unstable with one-to-one volatility. Through the investigation of agricultural climate resources and zoning, we found that the “dragon boat water” is closely related to the yield deficit of early rice. Study its harmfulness mechanism and index and the general variation rule, in order to profit from avoidance, to seize stable and high yield. First, the “Dragon Boat” hazard mechanism and indicators “Dragon Boat Water” refers to the annual rainy season in early rice growing season, rather than one or two heavy rain or storm
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