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研究结果表明,(1)不同茬口移栽地膜棉均有一定的增温促长效应,但作用效果随茬口的推迟而下降,麦套移栽地膜棉不仅开花早,而且进入成龄高峰早、峰值高,增产幅度达1423%。(2)麦套移栽地膜棉个体成铃强度随密度增加而下降,群体成铃强度以2800株/亩时最高;大麦后移栽地膜棉单株成铃数随密度提高而减少,亩总铃和产量则随密度提高而增加。(3)适宜施氮的棉田不仅进入成铃高峰早且波动小,后期仍保持较高的成铃强度,产量也较高。(4)移栽地膜棉密肥间存在着极显著的互作效应,高产栽培应采用合理密植、科学用肥的技术途径。
The results showed that: (1) cotton mulching had a certain warming effect at different stubble stages, but the effect decreased with the delay of stubble stubble. Transplanting cotton stalks did not only flowering early, but also reached the peak of early age, High peak, increase rate of 14 23%. (2) The boll forming intensity of wheat-cotton transplanting cotton decreased with the increase of density, and the boll forming intensity of the cotton bollworm reached the highest at 2800 plants / mu. The bolls per plant of cotton transplanting decreased with the increasing of density, The bell and yield increase with increasing density. (3) The cotton field suitable for nitrogen application not only entered the early morning but the fluctuation of the boll height was small, but the boll intensity remained high in the later period, and the yield was also higher. (4) There is an extremely significant interaction effect between transplanting cotton paddy and cotton paddy, and the high-yielding cultivation should adopt the technical approach of reasonable close planting and scientific fertilization.