摘要
采用正交回归旋转组合设计方法 ,对吉林省优质晚熟品种吉粳 6 6在栽培上的 5个主要可控因子进行了研究。结果表明 :①吉粳 6 6新品种高产、稳产 ,平均产量效应为公顷 8150 7kg ,若栽培技术得当 ,公顷产量最高可达 992 1 1kg ;②主要栽培措施对吉粳 6 6产量作用大小的顺序为 :施氮量 >插秧方式 >施磷量 >插秧期 >施钾量 ,特别是施氮量对产量起着决定性作用 ;③预测吉粳 6 6公顷产量达到 90 0 0kg以上时 ,主要栽培措施应采用的数量为 :插秧期在 5月 2 2～ 2 4日 ,插秧方式以 30 0cm× (13 4～ 14 4 )cm ,施氮量每公顷 2 0 2 6～ 2 10 6kg ,磷肥 (磷酸二铵 )每公顷 2 50 0～ 2 6 2 9kg ,钾肥 (硫酸钾 )每公顷 85 2～ 10 5 0kg。
By adopting the orthogonal_gyrating_regression disign,5 main elements for cultivation in Jilin province of high quality,late matured variety_Jijing 66 were studied.The results showed:(1)Jijing 66 was high and stable yield variety,average yield level was 8 150 7 kg/ha.If cultivation is proper,the highest yield can reach 9921.1 kg per ha;(2)The order to the function of the yield of Jijing 66 in main cultivated measure was fertilizer N dressed>the way of transplant rice seedlings>fertilizer P dressed>transplanting date>fertilizer K dressed,fertilizer N dressed was the most important.It was decisive factor to the yield;(3)It was estimated that when the yield of Jijing 66 reaches 9 000 kg per ha,the main cultivated measures should be below:transplanting date is from May 22 to May 24;the way of transplanting rice secdlings is 30.0 cm×(13.4～14 4)cm;fertilizer N dressed is 202 2～210 6 kg per ha;fertilizer P dressed is 250.0～262.9 kg per ha;fertilizer K dressed is 85.2～105.0 kg per ha.
出处
《吉林农业科学》
CSCD
2001年第3期26-31,共6页
Journal of Jilin Agricultural Sciences
关键词
水稻
吉粳66
农艺措施
产量
数学模型
Rice
Jijing 66
Cultivated factor
Agronomic measures
Yield
Model_maths analysis
