CAJ | 학술논문

[目的]科学地利用气候资源,以保证早稻高产稳产.[方法]应用1993～2008年柳州沙塘早稻生育状况观测资料及同期气象观测数据,利用统计分析对早稻开花期、乳熟前期和乳熟后期的平均日最高气温、平均日降水量和平均日照时数与水稻空壳率、秕谷率进行相关性分析,分析早稻各生育期气象要素对早稻结实率的影响.[结果]早稻空壳率随着开花期平均日照时数的增加而减少;秕谷率随着乳熟前期平均日降水量的增加而增加,随着乳熟后期平均日降水量的增加而增加,随着平均日照时数的增加而减少.[结论]早稻结实率与气象因子相关.根据其变化适当地进行人工调节,可降低早稻空壳率,提高产量.
[목적]과학지이용기후자원,이보증조도고산은산.[방법]응용1993～2008년류주사당조도생육상황관측자료급동기기상관측수거,이용통계분석대조도개화기、유숙전기화유숙후기적평균일최고기온、평균일강수량화평균일조시수여수도공각솔、비곡솔진행상관성분석,분석조도각생육기기상요소대조도결실솔적영향.[결과]조도공각솔수착개화기평균일조시수적증가이감소;비곡솔수착유숙전기평균일강수량적증가이증가,수착유숙후기평균일강수량적증가이증가,수착평균일조시수적증가이감소.[결론]조도결실솔여기상인자상관.근거기변화괄당지진행인공조절,가강저조도공각솔,제고산량.
[Objective] The high and stable yield of ear-season rice could be realized through the scientific use of climate resource. [Method] The correlation among average maximum daily temperature, average daily precipitation and average daily sunshine hour in the flowering period, the former and late of milky stage of early-season rice, and the rate of empty grain, the rate of bad seed was statistically analyzed with the data from 1993-2008 in Shatang of Liuzhou City. The impact of the meteorological factor in the different growth stages on seed-setting rate of early-season rice was discussed. [Results] The rate of empty grain of early-season rice was reduced with the average sunshine hour-increasing in its flowering period; the rate of bad seed was raised with the increment of the average precipitation in the former of milky stage and also with the increment of average precipitation in the late of milky stage of early-season rice; the rate of bad seed was reduced with the average sunshine hour-increasing. [Conclusion] The seed-setting rate of early-season rice was associated with the meteorological factors. The appropriate adjustment could reduce the rate of empty grain of early-season for its yield increasing.