论文部分内容阅读
研究了不同播种量、不同多效唑用量和不同播植密度对晚稻旱育秧秧苗素质和大田产量的影响。随着播种量的增加、秧苗素质下降，适宜的播种量为３０～４０ｇ／ｍ￣２；旱育殃苗期使用３００ｍｇ／ｋｇ多效唑能矮化秧苗，增加分蘖：旱育秧秧苗移栽后返青快，分蘖早，成穗率和结实率高，增产显著：在合理稀植（１３．３ｃｍ×２６．６ｃｍ或１３．３ｃｍ×３３．３ｃｍ）条件下，生长优势更强，产量增加１７％以上。
The effects of different sowing rates, different amount of paclobutrazol and different sowing densities on seedling quality and yield of late-sowing nursery seedlings were studied. With the increase of seeding rate, the quality of seedlings decreased, the appropriate sowing rate was 30 ~ 40g / m ~ 2; seedlings of dry calamus seedlings with 300mg / kg paclobutrazol can dwarf the seedlings, increase tillering: , Early tillering, spike rate and high seed setting rate. The yield was significant. Under reasonable thin planting (13.3cm × 26.6cm or 13.3cm × 33.3cm), the growth was stronger and the yield increased by more than 17%.