论文部分内容阅读
水稻塑盘抛秧栽培容易发生倒伏,其主要原因是抛秧入土浅,大量根系分布在表层土壤里;管水不当造成土层软烂不实,也容易发生倒伏;早稻生育中后期正值雨季,田间极易积水,土壤糊烂,更易发生倒伏。预防水稻抛秧栽培倒伏的技术措施:一是选用茎秆粗壮,抗倒力强的矮秆高产水稻品种(组合)。二是及时揭膜炼苗,防止秧苗徒长、节间伸长。三是使用多效唑培育矮壮秧,可按每公斤干谷种子用多效唑粉剂2克,待催芽
Rice plastic tray throwing transplanting prone to lodging, the main reason is throwing transplanted into shallow soil, a large number of roots distributed in the surface soil; improper tube caused by soil soft and rotten false, but also prone to lodging; early rice during the late rainy season , The field is easy to water, soil paste rotten, more prone to lodging. Prevention of rice throwing cultivation lodging technical measures: First, use sturdy sturdy, strong anti-downforce dwarf high-yielding rice varieties (combinations). Second, promptly expose the film hardening, to prevent the growth of young seedlings, internation elongation. Third, the use of paclobutrazolac nurtured short stature seedlings can be used per kilogram of dry Valley seed 2 g,