摘要
为探求豫南稻区紫云英(Astragalus sinicus L.)种植田块最佳水稻留茬高度,设置6种秸秆留茬高度(10、20、30、40、50、60 cm),研究不同留茬高度对紫云英生长发育及种子产量的影响。结果表明,不同留茬高度可以显著影响光照度继而改变地表温度、湿度。高留茬(50~60 cm)可以为紫玉英生长发育前期提供一个适合其生长发育的小气候,而不利于盛花期鲜草产量以及收获期种子产量的获得。30~40 cm留茬高度可以提高紫云英生长发育中后期茎粗、分枝数、单株鲜重,进而提高盛花期鲜草产量和收获期种子产量,在豫南稻区值得在生产中推广应用。
The effects of six rice stubble height(10,20,30,40,50,60 cm)on growing development and seed yield of Chinese milk vetch(Astragalus sinicus L.)in southern Henan were explored to seek the best treatment of rice stubble height.The results showed as follows:different stubble height could significantly affect the light intensity and change the surface temperature and humidity.The high stubble(50~60 cm)could provide a suitable microclimate for the early growth and development of Chinese milk vetch,but was not conducive to the yield of fresh grass at full flowering and seed at harvest.The stubble height of 30~40 cm could increase the stem diameter,branch number and fresh weight per plant in the middle and late growth stage of Chinese milk vetch,and then increase the fresh grass yield at the full flowering stage and seed yield at the harvest stage,which was worth promoting and applying in rice production in southern Henan Province.
作者
聂良鹏
郭利伟
郑春风
丁丽
张成兰
潘兹亮
张丽霞
张琳
朱德焰
史鹏飞
凌敬伟
吕玉虎
NIE Liang-peng;GUO Li-wei;ZHENG Chun-feng;DING Li;ZHANG Cheng-lan;PAN Zi-liang;ZHANG Li-xia;ZHANG Lin;ZHU De-yan;SHI Peng-fei;LING Jing-wei;LYU Yu-hu(Xinyang Academy of Agricultural Sciences,Xinyang 464000,Henan,China;Institute of Plant Nutrition,Agricultural Resources and Environmental Science,Henan Academy of Agricultural Sciences,Zhengzhou 450002,China)
出处
《湖北农业科学》
2022年第24期19-22,共4页
Hubei Agricultural Sciences
基金
现代农业产业技术体系建设专项资金资助(绿肥,CARS-22)。
