In order to determine the impact of total rice straw incorporation on the growth of scattered?planting double?season rice,using Ganxin 203,Luliangyou 996,Ganxin 688 and Wufengyou T025 as early and late rice materials,the effects of no fertilization with total rice straw incorporation ( SF0 )、no fertilization without straw rice incorporation ( S0 F0 )、total straw rice incorporation with fertilizers ( SF) and total rice straw incorpo?ration without fertilizers ( SF0 ) on the scattered planting rice growth development and rice quality were studied by split plot design.The results showed that under the same fertilization conditions,total rice straw incorporation can increase the yield and effective panicles of rice. Under the same straw returning conditions, fertilization treatment can significantly increase the number of effective panicles,grains per spike and yield compared with no fertilization treatment.With total rice straw incorporation,the yield increase rate of Ganxin 203,Lu Liangyou 996,Wufengyou T025,Ganxin 688 was 131.10％,109.52％,65.66％ and 56.69％,respectively.While under no rice straw incorporation,the yield increase rate was 135.93％,111.02％,72.72％ and 66.53％,respectively.Un?der the same fertilization conditions, the number of differentiated primary branches, differentiated secondary branches,differentiated spikelets and percentage of retrograded spikelets with total rice straw incorporation were higher than no rice straw incorporation in early and late rice. There were significant or extremely signifi?cant positive correlations between survived primary branches,survived secondary branches,survived spikelets, the number of grains per panicle and yield,but there was a significant or extremely negative correlation with the seed setting rate of rice. Total rice straw incorporation and fertilization treatment can improve the processing quality,eating quality and nutritional quality of rice.
total rice straw incorporationricegrowth characteristicsyieldrice quality
国家科技期刊平台
NSTL
万方数据
维普
