不同机插方式水稻高产群体特征及其产量研究

The Study on the Population Characteristics and Yield in Rice with Different Mechanical Transplanting Methods

研究钵苗机插群体结构特征及产量形成特点,探索适应稻作生产的高产、稳产栽培技术。以毯苗机插为对照,设置钵苗机插高产示范田,系统比较其生长发育各项指标。研究表明:相比传统毯苗机插,钵苗机插秧苗素质明显高于毯苗机插,发根力优势明显;移栽后分蘖发生快,成穗率高;各生育时期干物重高于毯苗机插稻;抗倒能力强,单茎抗倒力矩为51.0g/茎,较毯苗高18.9%;最终产量钵苗机插稻达11.52t/hm2,较毯苗机插高0.62t/hm2,增产5.7%。

In order to study the yield and the population characteristics of the nutrition bowl seedling mechanicaltransplanting, for exploring the cultivation techniques of rice high and stable yield, growth and developmental indexes were investigated and systematically compared by setting the high-yield demonstration fields of bowl seedling mechanical-transplanting and conventional blanket seedling mechanical-transplanting as control. The results showed that： comparing with conventional blanket seedling mechanical-transplanting, the seedling quality was significantly improved, rooting ability had obvious advantages, tillering after transplanting emerged faster, spikelet rate was higher. The photosynthetic potential, dry matter accumulation and lodging-resistance capacity were significantly higher than conventional blanket seedling. The bowl seedling mechanical-transplanting rice had higher yield than blanket seedling mechanical-transplanting rice with an increase of 5.7%.