摘要
为探究生物有机肥的施用对燕麦生长发育的影响,以‘林纳’为试验材料,设置5个施肥处理,对其进行不同时间处理的干旱胁迫。结果表明,干旱初期,施化肥处理的土壤含水量高于施有机肥的土壤含水量,但在干旱胁迫后期表现为施有机肥处理的土壤含水量高于施化肥处理的土壤含水量,说明施生物有机肥对土壤水分含量有一定的影响。不同施肥处理下,茎重和根重总体呈现出施有机肥处理大于施化肥处理,除W4处理,其他处理施有机肥的根茎比大于施化肥的根茎比。不同施肥处理下的根系性状和叶性状也表现出不同差异。施有机肥可以促进根系的分蘖,以及植物地上和地下部分的生长,有效增加生物量。综合分析发现,6000 kg/hm2的生物有机肥施肥量对燕麦干旱具有最显著的响应。
To explore the effects of bio-organic fertilizer on the growth and development of oats,we took’Linna’as the test material and set 5 fertilizer treatments to carry out the drought stress during different periods.The results showed that:in the initial drought period,the soil moisture under the chemical fertilizer treatment was higher than that under the bio-organic fertilizer treatment;however,in the late period of drought stress,the soil moisture under the bio-organic fertilizer treatment was higher than that under the chemical fertilizer treatment,which meant applying the bio-organic fertilizer had a certain effect on soil moisture;generally speaking,the weight of stem and root under the bio-organic fertilizer were bigger than those under the chemical fertilizer,meanwhile,the ratio of stem to root under the treatment of chemical fertilizer was lower than that under the treatments of bio-organic fertilizer except treatment W4.The root and leaf traits also performed differently under different fertilization treatments.These results indicate that the application of organic fertilizer could promote the tillering of root as well as the growth of the aboveground and underground part of plants,and effectively increase the biomass.In conclusion,6000 kg/hm^2 of bio-organic fertilizer applied to oats has the most significant response to drought.
作者
马祥
贾志锋
赵祎伟
Ma Xiang;Jia Zhifeng;Zhao Yiwei(Key Laboratory of Superior Forage Germplasm in the Qinghai-Tibetan Plateau/Qinghai Academy of Animal Science and Veterinary Medicine,Qinghai University,Xining 810016;Paracultural College,Gansu Agricultural University,Lanzhou 730070)
出处
《中国农学通报》
2020年第2期18-25,共8页
Chinese Agricultural Science Bulletin
基金
青海省科技计划项目“高寒区饲用燕麦品种提纯复壮和三级繁育体系建立”(2017-NK-113)
现代农业产业技术体系建设专项“国家燕麦荞麦产业技术体系海东综合试验站”(CARS-07)
青海省科技计划项目“青海省青藏高原优良牧草种质资源利用重点实验室”(2017-ZJ-Y12).
