5%调环酸钙泡腾片在水稻生产上的应用试验

Application of 5% Prohexadione Calcium Effervescent Tablets on the Rice Production

通过田间试验,探索植物生长调节剂5%调环酸钙泡腾片在水稻生产上的应用效果,对水稻关键生育期、株高、节间长度、抗倒伏性以及产量等因素进行分析,结果表明,在水稻拔节前10 d喷施5%调环酸钙泡腾片,能够有效降低株高,缩短基部节间长度,减少倒伏发生面积,增加穗数及千粒重,进而达到增产效果,其适宜剂量12～30 g/667 m2。

Through field experiment, effect of 5% Prohexadione Calcium 5% Effervescent Tablets, a plant growth regulator, was explored. Its effect on rice key growing period, plant height, internodes length, re- sistance to lodging and yield was analyzed. The results showed that spraying 5% Prohexadione Calcium Ef- fervescent Tablets 10 days earlier than rice elongation could effectively reduce platd height, shorten basal internodes length, reduce lodging, increase spike number and grain weight, and then increase yield. The suit- able dosage was 12 - 30 g/667m2.