Study to high yield culture technique of transgenic hybrid cotton Chuanza 13

Research on nitrogen fertilizer,density and DPC three factors influence on lint yield and quality of transgenic insect-resistance hybrid cotton by three factor three levels incompletion designs.for insect-resistance hybrid cotton's quantity control to provide the theories basis.The results showed,applying nitrogen will improve boll weight and seed index,increasing density will decrease boll weight and seed index;Using DPC will increase seed index,but degrade boll weight.It is establish yield mathematics model by computer statistics.Through look for the better combinations:when lint yield reach between 1 650 to 1 800 kg/hm2,technique combination of transgenic insect-resistance hybrid cotton Chuanza 13 is applying nitrogen between 332.0 to 339.6 kg/hm2,density between 36 520 to 37 089 plant/hm2 and DPC between 98.0 to 100.8 g/hm2.