摘要
以长粒品种‘龙粳1525’和圆粒品种‘龙粳31’为试验材料,采用完全随机试验设计,研究不同灌溉方式、施氮量及株距对水稻茎蘖利用情况及产量的影响。结果表明:‘龙粳1525’在控灌处理、施氮量116.13 kg∕hm^(2)和14 cm株距下的产量最高,为8558.58 kg∕hm^(2);而‘龙粳31’在控灌处理、施氮量134.52 kg∕hm^(2)和12 cm株距下的产量最高,为9357.61 kg∕hm^(2),‘龙粳1525’和‘龙粳31’控灌处理下有效分蘖率最高,12 cm株距下的最高茎数、最高分蘖数和分蘖穗数最大,施氮量161 kg∕hm^(2)处理下的最高茎数、最高分蘖数、分蘖穗数和分蘖穗比例最大。结合优化方程得出,长粒品种‘龙粳1525’的最优处理为控灌方式、施氮量116.13 kg∕hm^(2)和株距14 cm;圆粒品种‘龙粳31’的最优处理为控灌方式、施氮量134.52 kg∕hm^(2)和株距12 cm。
The long-grain variety‘Longjing 1525’and round-grain variety‘Longjing 31’were used as experimental materials,the completely randomized experimental design was used to study the effects of different irrigation methods,nitrogen application rates and plant spacing on the utilization of rice stems and tillers and yield.The results showed that‘Longjing 1525’had the highest yield under controlled irrigation treatment,116.13 kg∕hm^(2) nitrogen application rate and 14 cm plant spacing,which was 8558.58 kg∕hm^(2);while‘Longjing 31’had the highest yield under controlled irrigation treatment,134.52 kg∕hm^(2) nitrogen application rate and 12 cm plant spacing and the maximum yield was 9357.61 kg∕hm^(2).‘Longjing 1525’and‘Longjing 31’had the highest effective tillering rate under controlled irrigation treatments,and the highest number of stems,highest tillers,and tillering panicles under 12 cm plant spacing,and the highest number of stems,highest tillers,tillering panicles and the proportion of tillering ears under 161 kg∕hm^(2)nitrogen application rate.According to the optimization equation,the optimal treatment of the long-grain variety‘Longjing 1525’was controlled irrigation,116.13 kg∕hm^(2) nitrogen application rate and the 14 cm plant spacing,the optimal treatment of the round-grain variety‘Longjing 31’was controlled irrigation,134.52 kg∕hm^(2) nitrogen application rate and 12 cm plant spacing.
作者
蔡永盛
薛菁芳
杜晓东
赵海新
杨丽敏
王立楠
陈书强
CAI Yongsheng;XUE Jingfang;DU Xiaodong;ZHAO Haixin;YANG Limin;WANG Linan;CHEN Shuqiang(Jiamusi Rice Research Institute,Heilongjiang Academy of Agricultural Sciences,Scientific Observing and Experimental Station of Rice Cold Damage in Cold Region,Ministry of Agriculture and Rural Affairs,Jiamusi 154026,China)
出处
《上海农业学报》
2022年第2期47-52,共6页
Acta Agriculturae Shanghai
基金
黑龙江省自然科学基金项目(LH2019C063)
院“农业科技创新跨越工程”专项(HNK2019CX12-08)
黑龙江省农业科学院院级课题(2020YYYF021)
黑龙江省农业科学院院级课题(2020FJZX022)。
关键词
水稻
栽培因素
茎蘖利用
产量
Rice
Cultivation factors
Tiller utilization
Yield
