论文部分内容阅读
采用正交回归旋转组合设计,对吉粳63号栽培上五个主要可控因素进行了研究,结果表明,(1)吉粳63号水稻品种的平均产量效应为每公顷8045公斤,最大产量潜力可达每公顷8960公斤。(2)主要栽培措施对吉粳63号产量作用的大小顺序为插秧苗数>插秧期>施 N 量>插秧方式>播种期。(3)预测公顷产量在8000公斤以上时,主要栽培因素应采用的数量为:播种期4月16～4月17日,插秧期5月21～5月22日,施 N 量172～178公斤/公顷,插秧方式26.7×13.3cm,插秧苗数4～5.4个/穴。(4)如果不考虑播种期和插秧期这两个因素,取得最佳经济效益时的栽培措施为每公顷施氮量156公斤,插秧方式26.7×10cm,每穴插秧3苗。
The results showed that: (1) The average yield effect of the japonica rice variety Jijing 63 was 8045 kg per hectare, with the maximum yield potential Up to 8960 kg per hectare (2) The order of the main cultivation measures on the yield of Jijing 63 was in the order of planting seedlings> planting period> applying N amount> planting method> sowing period. (3) When the output of hectare is predicted to be over 8000kg, the main planting factors should be used as follows: sowing date April 16 ~ April 17, transplanting date May 21 ~ May 22, N application rate 172 ~ 178kg / Ha, transplanting method 26.7 × 13.3cm, planting seedlings 4 ~ 5.4 个 / hole. (4) If the two factors, sowing date and planting date, are not taken into consideration, the cultivation measures for obtaining the best economic benefit are 156 kg of nitrogen application per hectare, 26.7 × 10 cm planting method and 3 seedlings per hole.