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1,根据1980年的气候条件和在杭州郊区连作晚稻的产量结果,其移栽时期可以划分为3个等级,即7月28日以前为早栽期,8月2日前后为中栽期,8月7日以后为迟栽期. 2.由于汕优6号对环境效应敏感,通过培育壮秧在早栽和中栽条件下,可以比农虎6号明显增产;在迟栽条件下,汕优6号比农虎6号则明显减产. 3.汕优6号在早栽条件下比农虎6号增产原因,除了穗粒的乘积大于农虎6号外,更由于在干物质分配上是谷多草少,经济系数比农虎6号高. 4.为了发挥汕优6号的增产潜力,必需充分利用环境效应,培育带大蘖壮秧,主攻百粒穗,并力争早插,以达到穗足粒多,高产增收.
1. According to the climatic conditions in 1980 and the yield of late rice continuous cropping in the suburbs of Hangzhou, the transplanting period can be divided into three grades, that is, the early planting period before July 28 and the medium planting period before and after August 2, After August 7 for the later period .As Shanyou 6 is sensitive to environmental effects, by cultivating strong seedlings in the early planting and medium planting conditions, significantly increased compared with the Nonghu 6; in late planting conditions, Shanyou 6 than Nonghu 6 significantly reduced production.3 Shanyou 6 in early planting conditions than Nonghu 6 yield reasons, in addition to spike grain product than Nonghu 6, but also due to the distribution of dry matter Is a valley less grass, the economic coefficient is higher than the Nonghu 6. In order to play the yield potential of Shanyou 6, we must make full use of environmental effects, cultivating strong sprout with big tiller, the main 100 spike, and strive to early plug, In order to achieve ear grain more grain, high yield.