Effects of Different Solid Drip-irrigation Special-purpose Fertilizer Applied to Cotton in Plastic Mulched/Drip Irrigated System

[Objective]The effects of different solid drip-irrigation special-purpose fertilizer application were studied.[Method] A field experiment was conducted with different types and rates of fertilizer application and cultivars in Xinjiang.The effects of different solid drip-irrigation special-purpose fertilizer on biological characteristics,dry matter accumulation and partitioning and yield of cotton were studied.[Result] Drip-irrigation special-purpose fertilizer could increase the yield of the cotten compared with the control.Moreover,it could enhance the biological characteristics and increase the dry matter of plant and reproductive organs,respectively.Additional,different cultivars had different effects in response of drip-irrigation special-purpose fertilizer.The cultivar of 293 was sensitive to organic fertilizer and bio-fertilizer,and the cultivar of 710 was sensitive to organic and inorganic fertilizer.[Conclusion] According to the response of cotton cultivars to drip-irrigation special-purpose fertilizer,the accumulation and partitioning of dry matter should be regulated by using effective cultivation technique.It was meaningful for realizing the high production and high efficiency of cotton in Xinjiang.