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《Acta Agriculturae Jiangxi》 2016-07
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Effects of Fertilizer Application on Population Quality of Different Types of Rice

HUANG Sheng-dong;LI Yu-sheng;YANG Juan;Institute of Food Crops,Jiangsu Academy of Agricultural Sciences;Jiangsu Provincial Coinnovation Center for Modern Production Technology of Grain Crops,Yangzhou University;  
The effects of different ratios of base-tiller fertilizer to panicle-grain fertilizer application on the population quality of different types of rice varieties were studied. The results indicated that the hybrid japonica rice varieties had the highest yield under the condition of base- tiller fertilizer ∶ panicle- grain fertilizer = 6 ∶ 4,and the conventional japonica rice varieties had the highest yield under the condition of base- tiller fertilizer ∶ panicle- grain fertilizer = 5 ∶ 5. When the proportion of base- tiller fertilizer application increased,the number of effective panicles,number of filled grains per panicle,seed- setting rate,1000-grain weight,leaf area index,and dry matter weight of different types of rice varieties were increased firstly and then decreased,which was consistent with the change trend of yield. Under the same fertilization condition,the hybrid japonica rice varieties had obvious advantages in dry matter weight,spike rate,filled grain number per panicle and yield as compared with the conventional japonica rice varieties,suggesting that hybrid japonica rice could more effectively use the nutrients and possessed higher yield-increasing potential under the conditions of large sink and full source.
【Fund】: 江苏省农业科技自主创新资金项目(CX(15)1054)
【CateGory Index】: S511
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