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《Journal of Anhui Agricultural Sciences》 2007-21
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Preliminary Study on Influence of the System of Rice Intensification on Main Economic Characteristics and Yield of ⅢYou 98

FAN You-sheng et al(Agriculture Technique Extending Center of Lvjiang County of Anhui Province,Lujiang,Anhui 231500)  
The purpose of study was to explore the optimum combination of 3 factors of different density,pure N amount and tillering controlled by 2,4-D in the system of rice intensification.The effect of the system of rice intensification on main economic characteristics and yield of ⅢYou 98 was studied with the quadratic orthogonal rotational combination design with three factors.The polynomial quadratic regression effect model of 3 factors on the yield was established and the quantization index of main economic characteristics in high yield population were obtained through analysis.The agriculture cultivate measures of yields≥8 250 kg/hm2 of Ⅲ you 98 in the system of rice intensification were summarized as follows:transplanting density of 16.5 ten thousand~18.0 ten thousand plants/hm2,pure N amount of 196.5~213.0 kg/hm2,tillering controlled by 2,4-D at 248.0 tne thousand~255.0 ten thousand plants/hm2 and the yield reaching 9 027.0 kg/hm2 at the average value of three factors in the experimentation.The important way realizing high yield was to make the harmonious development of population and individual through N fertilizer management and tillering controlled by 2,4-D under suitable density range.
【CateGory Index】: S511
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
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