固始县水稻机插高产高效制约因素探讨及对策

Major Restriction Factors of High Yield and Benefit of Machine-transplanted Rice in Gushi County

以固始县63块机插秧田为研究对象,对影响固始县水稻机插生产的主要制约因素进行了跟踪调查。结果表明,固始县水稻机插高产高效制约因素主要有:品种多、乱、杂;播种量和秧龄偏大,机插密度偏小;磷、钾肥用量不足,偏施基蘖肥,不施穗肥,分蘖肥一次施入且比例偏低,并提出了相应的对策。

The main restriction factors affecting machine-transplanted rice were analyzed, 63 pieces machine transplanted field in Gushi County as the research object. The results showed that the major restriction factors of high yield and high benefit of machine- transplanted rice include： the varieties were planted in a large number and confusion; the sowing rate was too large and the seeding age was too long, the plant density was relatively small; the phosphate and potash fertilier was less, the fertilization only as basal and tillering fertilizer with no panicle fertilizer, the tillering fertilizer was one-time plowing and the proportion was low.