culture time

Raft culture of Sargassum fusiforme(Harvey) Setch(vernacularly known as Yangqicai) were conducted in the surface water of Yuliao Bay in Zhejiang Cangnan from October,2006 to June,2007,the cultural period were 210 days.

在整个栽培期中出现秋季和春季两个快速生长期,第一个快速生长期出现在10-11月,第二个出现在3-4月。

Appropriate cultivating season of high-quality rice formation in Jianghan Plain is analyzed by using the results on the relationship between the high-quality rice cultivation and the climatic conditions home and abroad, analyzing the climatic dates from 1954 to 1999 of Jingzhou that is situated in the center part of the Jianghan Plain.

采用近几十年来国内外关于优质米形成与气候条件关系研究取得的主要成果及江汉平原腹地荆州市1954～1999年的气象资料,以平均温度为主要影响因子,以水稻齐穗后15～20d为关键生育期对江汉平原水稻优质米形成的适宜栽培期初步研究结果表明,8月25日～9月初齐穗为江汉平原优质米形成的最佳栽培期,8月22日～9月5日左右齐穗为适宜栽培期,8月10日前与9月8日后齐穗为易灾栽培期。