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《Cotton Science》 1991-01
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SIMULATION AND ANALYSIS OF THE EFFECT OF EARLY SEASON SQUARE REMOVAL ON COTTON BOLLING

Pan Xiaokang Jiang Guozhu Deng Shaohua Wu Tongli (Cotton Research Institute,CAAS,Anyang,Henan)  
A rotational central composite design with orthogonality was applied to set up five-ele- ment quadratic regression equations to describe the numbers of good bolls and total bolls per mu and mean single boll weight in cotton in relation to sowing date,side-dressing N,plant density,spraying DPC,and early season square removal(ESSR) in 1987 and 1988,By reduc- ing the dimensions of each equation,the importance of single factor and interactions between ESSR and other agronomic factors on the numbers and weight of cotton boll were analysed. The suitable number of ESSR and how the removal technique can be effectively integrated with the other agronomic meacures were suggested in the management of simulated optimal agro- nomic schemes from simulation and empirical high yield agronomic schemes from the empirical summary in different years.
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
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