摘要
为避免过量施硒产生叶片损伤,实现籽实富硒并降低成本,必须选择合适的富硒营养液喷施量。本研究在内蒙古春小麦产区开展富硒营养液叶面喷施量对"宁春4号"小麦产量和面粉品质影响的田间试验,结果发现:朵日纳营养液最佳喷施量为7500 mL·hm^-2(硒施用量61.5 g·hm^-2),相比对照,"宁春4号"产量显著提高11.8%(达600 kg·hm^-2);面粉中的硒含量上升6.6倍,达0.66 mg·kg^-1,同时,面粉中锌和蛋白质含量分别提高5.4%和12.4%。研究结果确定了朵日纳营养液应用于小麦的合适喷施量,对其推广应用和支撑地区富硒产业发展具有重要意义。
Proper foliar spray dose of Se-rich nutrient solution is important for avoiding leaf damage by excessive dose of sprayed selenium(Se)and realizing Se accumulation in kernel of wheat and cost reduction.In this study,we examined the effects of foliar spray dose of Se-rich nutrient solution(Dorina)on the yield and flour quality of spring wheat(Ningchun 4,being widely cultivated in China).The results showed that 7500 mL·hm^-2 of Se-rich nutrient solution(with Se concentration of 61.5 g·hm^-2)was the best dose,which increased the yield of spring wheat to600 kg·hm^-2(with a 11.8%enhancement).The Se content in flour was 6.6 times higher than that in control,while zinc and protein content were increased by 5.4%and 12.4%,respectively.This dose of Se-rich nutrient solution(Dorina)could meet the demand of Se-rich wheat production.Our results provide scientific support for its wide use and the development of local selenium industry.
作者
李文栓
李晓军
李培军
张海荣
LI Wen-shuan;LI Xiao-jun;LI Pei-jun;ZHANG Hai-rong(Department of Agronomy,Hetao College,Bayannur 015000,Inner Mongolia,China;Key Laboratory of Pollution Ecology and Environmental Engineering,Institute of Applied Ecology,Chinese Academy of Sciences,Shenyang 110016,Liaoning,China;Academician and Expert Workstation for Key Techniques of Functional Agriculture in the FarmingPastoral Zone,Dorina Selenium Science Biotechniques Company Limited,Ordos 017000,Inner Mongolia,China)
出处
《生态学杂志》
CAS
CSCD
北大核心
2020年第11期3643-3650,共8页
Chinese Journal of Ecology
基金
农牧交错带功能农业关键技术研发院士专家工作站开放课题(20190001)
国家重点研发计划课题(2019YFD1100504)资助。
关键词
面粉
千粒重
叶面喷施
硒
蛋白质
flour
thousand-kernel weight
foliar spray
selenium
protein
