摘要
针对湖南省连作晚稻塑盘育秧抛栽耕作栽培技术中的几项关键配套技术进行研究。结果表明 :晚稻塑盘育秧抛栽 ,品种应选用生育期为 110d左右的优质稳产的中熟品种 (组合 ) ,于 6月中、下旬播种 ,秧龄控制在 2 5d左右 ,确保在 9月中旬前齐穗 ,育秧盘采用 3 4cm× 60cm ,每盘 3 5 3～ 40 0孔的规格 ,抛秧密度为 2 2 5～ 3 1 5万蔸 /hm2 。
The studies were carried out to counter several related seedling-broadcasting techniques by raising rice seedlings with plastic plate in late rice in Hunan province. The results showed that medium mature rice varieties (hybrid combination) with moderate stage, high quality and stable yield used for seeding broadcasting by raising rice seedlings with plastic plate were the best. Rice varieties'growth stages must be controlled in 110 days in order to ensure full heading safely in the middle ten days of September and be away from the cold dew wind. Plastic plate were adopted under the standard of 34 cm×60 cm and every plastic plate had 353-400 holes. According to the growth stage length of late rice, seedling was carried out in the middle or last ten days of June. The rice seeding age was controlled in 25 days or so and seedling broadcasting was conducted before July 25. It was unfavorable to rice seedling age was prolonged, seed dressing and spraying S-07 could be used to control rice seedling growth and promote tillering. In order to cultivate short and strong rice seedling, about 20 cm'rice seedling should be controlled. According to production condition, soil fertility and specific property of rice variety, 225 000-315 000 tillers/hm 2 should be controlled. If the quality of rice seedling was poor and soil fertility of fertilizer application levels were low, the density showed be increased properly to bring population effects of yield increase into full play.
出处
《湖南农业科学》
2002年第4期25-28,共4页
Hunan Agricultural Sciences
基金
湖南省科委"九五"重点科研项目 (98-10 10 )
关键词
塑盘育秧
抛栽
配套技术
连作晚稻
raising rice seedling with plastic plate
seedling broadcast
relate techniques
late rice
