膜下滴灌条件水、氮、密度耦合效应对棉花产量的影响

[Objective] Effect of water, nitrogen and density coupling on the growth of hybrid cotton under film drip irrigation were studied. [Method] A field experiment was carried out to study the growth and output of cotton treated by 8 test schemes of different water, nitrogen and density. [Result] The results showed that the effect of water quantity on cotton yield was the most significant, the next was nitrogen and density. The yield of cotton was increated along with increasing of water and nitrogen quantity followed by nitrogen quantity and planting density. [Conclusion] These results suggested that water and nitrogen in field farming should be used cautiously.