【摘要】 本文研究了汇油 5 0不同密度下的生育特性、产量表现及产量构成。在每公顷 30 0kg左右纯氮 ,密度4.5～ 7.5万株 /公顷稀植条件下 ,每公顷产量可达 2 90 0kg左右 ,比对照增产 1 1 .9%～ 1 6 .2 %。更多还原

【Abstract】 This artistestudied the characteristics of yield and its constituents in deferent plant densites.Experiment results showed,the yield can reach 2900kg/ha in plant density 45000～75000 plants/ha,more than CK 11.9～16.2%.The amount yield of nitrogen fertilizer applied was about 300kg/ha.更多还原