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作 者:郭盛楠 赵鑫[2] 张春雨 梁烜赫[2] 胡宇 孙日丹 丁博 曹铁华[2] 傅民杰[1] GUO Shengnan;ZHAO Xin;ZHANG Chunyu;LIANG Xuanhe;HU Yuu;SUN Ridan;DING Bo;CAO Tiehua;FU Minjie(Agricultural College,Yanbian University,Yanji 133002;Jilin Academy of Agricultural Sciences,Changchun 130033;Lishu County Agricultural Technology Extension Station,Siping 136500,China)
机构地区:[1]延边大学农学院,吉林延吉133002 [2]吉林省农业科学院,长春130033 [3]梨树县农业技术推广站,吉林四平136500
出 处:《东北农业科学》2021年第6期26-30,63,共6页Journal of Northeast Agricultural Sciences
基 金:国家重点研发计划项目(2018YFD0300206);吉林省科技厅技术攻关项目(20190301017NY);2019年吉林省农业科学院研究生基金(c92070223)。
摘 要:通过适宜的栽培技术调控水稻高产群体的建成,以便确定不同施肥模式下栽种的适宜密度并进行科学评价。以吉林省水稻主栽品种吉宏6号为试验材料,在磐石和龙井地区,分别在耐冷模式和高产模式下调查不同插秧密度对水稻农艺、产量和评价指标的影响,确定该品种适宜的配套栽培技术。多因素方差分析结果表明:不同模式和不同地区间在水稻产量方面无显著性差异,但不同密度对水稻株数、干物重、叶面积指数、产量及评价指标均有显著性影响。磐石地区耐冷和高产模式下均以30 cm×13.3 cm处理产量最高,分别为655.4、681.9 kg/667 m^(2);龙井地区两种模式下均以对照30cm×16.7 cm处理产量最高,分别为717.9、734.9 kg/667 m^(2)。因此,在磐石地区种植吉宏6号应该在农户插秧密度(30 cm×20 cm)的基础上有所调整,30 cm×13.3 cm或30 cm×16.7 cm密度条件更加适合;而在龙井地区则不用调整,因为当地农户插秧密度(30 cm×16.7 cm)已是最佳密度。The establishment of high-yield rice population was regulated by appropriate cultivation techniques in order to determine the appropriate density of different fertilization models and conduct scientific evaluation.The effects of different transplanting densities on rice agronomy,yield and evaluation indexes were investigated in Panshi and Longjing regions under cold tolerance and high yield modes,respectively,so as to determine the suitable cultivation techniques for this variety.The results of multivariate ANOVA showed that there was no significant difference in rice yield between different models and different regions,but different densities had significant effects on rice plant number,dry matter weight,leaf area index,yield and evaluation index.In the cold tolerance and high yield mode,the yield was the highest in the 30 cm×13.3 cm treatment(655.4 and 681.9 kg/667 m^(2)).However,under the two modes in Longjing region,the highest yield(717.9 and 734.9 kg/667 m^(2))was obtained under the treatment of 30 cm×16.7 cm.Therefore,the transplanting density(30 cm×20 cm)of farmers in Panshi region should be adjusted to plant Jihong 6,and the density conditions of 30 cm×13.3 cm and 30 cm×16.7 cm are more suitable.However,the transplanting density of farmers in Longjing region(30 cm×16.7 cm)has reached the optimal density without adjustment.
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