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较好的秧苗素质是水稻旱育抛植获得高产的基础,而单株带蘖依然是衡量旱育壮秧的主体指标,中籼稻大苗抛植单株带蘖3个以上,中粳稻大苗抛值单株带蘖2个以上较好。旱育抛植密度的合理配置是获得高产的重要措施,本研究揭示,我地中籼稻每平方米抛植27~37苗,基本茎蘖苗90~120,中粳稻每平方米抛植45~50苗,基本茎蘖苗140~160,有利于获得较高产量。合理的肥料运筹是获得高产的调节手段,旱育抛植稻氮肥运筹基、蘖肥与穗、粒肥的比例以6:4为宜。
The better seedling quality is the basis for high-yielding cultivation of rice in dry-land cultivation, while the single-plant tillering is still the main index to measure the strong drought-tolerant seedling. The middle-aged indica rice seedling is planted with more than 3 tillers per plant, More than two plants with tillers better. The reasonable allocation of drought and watering planting density is an important measure to obtain high yield. This study revealed that 27 to 37 seedlings per square meter of mid-season indica rice, 90 to 120 basic stems and tillers, 50 seedlings, the basic stem tillering 140 ~ 160, is conducive to obtaining higher yields. Reasonable fertilization is to obtain high-yield fertilizer regulatory means, dry and fertile rice planted paddy nitrogen base, tillering and spike, grain fertilizer ratio of 6: 4 is appropriate.