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High Temperature-preventing Cultivation Technology of Single-season Middle Rice for High Yield and High Quality in jianghuai area

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Agricultural Biotechnology 2022年第2期11卷 27-29,37页

作者： Dewen ZHANG Wei ZHANG Youzun XU Wanlin WANG Dewei TAI Xiaozhong ZHANG Xueyuan SUN Institute of Rice Research Anhui Academy of Agricultural SciencesHefei 230031China

In recent years,with the global climate change,the frequency and duration of high temperature in summer and autumn have increased,causing high temperature heat damage to summer crops such as rice and *** the end of July to early August is the main period of high temperature occurrence,during which the daily average temperature above 30℃is a high probability event,and even the highest temperature is above 38℃,while this period coincides with the booting-blooming-filling stage of the single-season middle rice in jianghuai,especially the middle-season indica rice,so it often leads to the degradation of rice spikelets,pollen abortion,difficulty in pollen dispersion,and even difficulty in heading,resulting in a serious decline in the seed setting rate and poor filling of grains,which finally affect the yield and *** on the goal of high-yielding high-quality rice cultivation,this paper proposed targeted technical measures for single-season middle rice from the aspects of planting time sequence optimization,selection of high-temperature-resistant varieties,population construction,fertilizer and water management technology,and how to compensate for the occurrence of unexpected disasters to promote plant *** study provides technical support for high-yielding high-quality stress-resistant and disaster-reducing rice cultivation technology.

关键词： Single-season middle rice jianghuai area High temperature damage High yield Good quality Cultivation technology

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