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[目的]为提高隆阳区水稻单产水平,明确栽插密度与水稻产量的关系。[方法]在田间小区试验条件下,以粳稻隆科16为材料,采用不同栽插密度研究对其产量及构成因素的影响。[结果]结果表明,栽插密度2.7~3.3×10~5丛/hm~2,栽茎蘖苗5.4~6.6×10~5/m~2,产量可达11 250~12 000 kg/hm~2。[结论]隆科16是综合性状好的高产粳稻品种,合理密植,精确定量栽培,可以充分发挥其高产潜力。
[Objective] In order to improve the yield of rice in Longyang District, the relationship between planting density and rice yield was clarified. [Method] Under field plot test conditions, taking Japonica rice Longke 16 as material, the effects of different planting densities on its yield and its components were studied. [Result] The results showed that the planting density was 2.7 ~ 3.3 × 10 ~ 5 plexuses / hm ~ 2 and the tillering height was 5.4 ~ 6.6 × 10 ~ 5 / m ~ 2. The yield was 11 250 ~ 12 000 kg / 2. [Conclusion] Longke 16 was a high-yield japonica rice with good comprehensive characters. It could be put into full play to its high-yield potential by reasonably close planting and precise quantitative cultivation.