优质高产水稻新品种吉粳66综合农艺措施与产量的数学模型分析

Model-Maths Analysis of Synthetic Agronomic Measures and Yield for High Quality,High Yield New Rice Variety Jijing 66

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。

Abstract:

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.