Study On The Characteristics And Corresponding Cultivation Techniques Of High Yield And Quality Of Ⅰ-Tryou3381

Against the background of the Characteristics of I-Tryou3381,the paper carries out the research of the yield of I-Tryou3381 and its yield components influence on the yield,the different planting density of I-Tryou3381 and the nitrogen phosphorus and potassium influence on the yield, it is aimed to systematic summarization of the process of the Characteristics of I-Tryou3381,and comprehensive evaluation of the high yield and quality of corresponding cultivation techniques. The results are as follows:â… -Tryou3381 is a new combination of late indica hybrid rice bred withâ… -Long Te Fu A and new restored line Lung Hui 3381 by Longyan Agricultural Institute of Fujian Province,Is a basic nutrition type and late indica planting in Longyan.the Whole growth period is about 134d,is less 1d than Shanyou 63(ck), the Characteristics of plant height are about 110. lcm, efective panicle number for per-hole are 12.2 Congs,plant height is 23.2cm,total grain numbers are 154 Tablets,seed setting rate is82.0%,1000-grain weight is 26.5g. the Average yield of I-Tryou3381 are 572.9 kg/666.7m2,more 6.63% than Shanyou 63(ck).In the research of the yield ofâ… -Tryou3381 and its yield components influence on the yield, yield regression equation ofâ… -Tryou3381 between yield and yield components is determined as followed:y= 5521.79201+33.83275821X3-510.5251344X4-31.518202548X5+280.56105435X8.By path analysis,various factors to affect yield is in order:seed setting grain number>efective panicle number for per-hole>1000-grain weight>plant height>Panicle length>seed setting rate>total grain number.In the research of the different planting density the plantingâ… -Tryou3381 and the nitrogen,phosphorus and potassium influence on the yield, the results shows that the yield increasing effect of the 4 factors is different, higher than the control group:nitrogen amount>density>phosphorus amount >potassium amount. The optimized application model among density and nitrogen,phosphorus,potassium, which can get 600 kg/666.7 m2 more than the target yield ofâ… -Tryou3381 is:1.6058 to 1.64million Congs/666.7 m2; 46% carbamide of 59.8 to 61.2 kg/666.7 m2; 18% calcium superphosphate of 24.9 to 25.1 kg/666.7 m2; 52.3% Potassium Chloride of 8.2 to 9.02 kg/666.7 m2.