干旱区生态环境知识资源中心(Arid): 西北荒漠灌区紫花苜蓿产量和营养品质对水肥调控的响应

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	西北荒漠灌区紫花苜蓿产量和营养品质对水肥调控的响应
其他题名	Effects of water and fertilizer regulation on yield and nutritional quality of alfalfa grown in irrigated area in northwest desert zone
	马彦麟 1; 齐广平 1; 汪精海 1; 康燕霞 1; 史晓巍 1; 贾涪钧 2; 栗志 2
来源期刊	甘肃农业大学学报
ISSN	1003-4315
出版年	2018
卷号	53 期号:6 页码:171-179,186
中文摘要	【目的】通过研究不同水肥组合对苜蓿干草产量和营养品质的影响,探明西北荒漠灌区紫花苜蓿合理的水肥管理模式.【方法】以不同程度水分调控水平(土壤含水量下限占田间持水量百分比)45%~55%(W0)、55%~ 65%(W_1)、65%~75%(W_2)、75%~85%(W_3)为主处理,不同施氮水平(N_0:0kg/hm~2、N_1:60kg/hm~2、N_2: 120kg/hm~2、N_3:180kg/hm~2)为副处理进行两因素随机区组试验.【结果】在同一水分条件下,随施氮肥水平的提高,苜蓿干草产量和粗蛋白含量呈先增加后降低的变化,酸性洗涤纤维(ADF)和中性洗涤纤维(NDF)含量呈先降低后升高的变化趋势;同一施肥水平下,随水分调控程度的减轻,干草产量和粗蛋白含量呈先增加后减小的变化, ADF和NDF含量呈先减小后增加的变化趋势.水肥交互作用下,苜蓿产量和营养品质对水分的响应较施肥作用的影响更加敏感,W_2N_2较W_3N_3处理全生长期干草产量增加了206.51kg/hm~2,低于W_3N_2处理,但差异不显著(P> 0.05);在W_2N_2处理下粗蛋白含量最高,ADF和NDF含量最低,全生长期相对饲喂价值(RFV)值最大为204.1. 【结论】W_2N_2水肥调控处理组为苜蓿最佳水肥组合,有利于提高西北荒漠灌区紫花苜蓿干草产量和营养品质.
英文摘要	【Objective】In order to explore the proper management system of water and fertilizer supplies for alfalfa in irrigated area in northwestern desert zone.【Method】Water regulation was used as the main treatment(percentage of field water capacity),including 4irrigation levels(45%to 55%,W0;55%to 65%,W_1;65%to 75%,W_275%to 85%,W_3)and sub-treatment was nitrogen fertilization including 4levels(0kg/hm~2,N_0;60kg/hm~2,N_1;120kg/hm~2,N_2and 180kg/hm~2,N_3).The effects of treatments on hay yield,crude protein(CP),acid detergent fiber(ADF),neutral detergent fiber(NDF)and relative feed value(RFV)of alfalfa were studied.【Result】Under same water condition,the yield of hay and CP increased first and then decreased with the increase of fertilization level,and the content of ADF and NDF firstly decreased and then increased.Under same fertilization level,with the reduction of irrigation amount,hay yield and CP content increased first and then decreased,ADF and NDF contents decreased first and then increased. Compared to fertilization,the yield and nutritional quality of alfalfa were more responsible to irrigation. The hay yield in W_3N_2treatment was the highest,and followed by W_2N_2treatment,but no significant difference among them (P>0.05),and 206.51kg/hm~2 higher than W_3N_3treatment.The content of CP was the highest,and the content of ADF and NDF was the lowest in W_2N_2treatment.The maximum RFV occurred in W_2N_2treatment(204.1).【Conclusion】The best treatment was W_2N_2in terms of hay yield and nutritional quality.
中文关键词	水肥调控 ; 紫花苜蓿 ; 产量 ; 营养品质 ; 相对饲喂价值
英文关键词	regulation of water and fertilizer alfalfa yield nutritional quality relative feed value
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FISHERIES
WOS研究方向	Fisheries
CSCD记录号	CSCD:6405066
来源机构	甘肃农业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237531
作者单位	1.甘肃农业大学水利水电工程学院, 兰州, 甘肃 730070, 中国; 2.甘肃杨柳青牧草饲料开发有限公司, 兰州, 甘肃 730070, 中国
推荐引用方式 GB/T 7714	马彦麟,齐广平,汪精海,等. 西北荒漠灌区紫花苜蓿产量和营养品质对水肥调控的响应[J]. 甘肃农业大学,2018,53(6):171-179,186.
APA	马彦麟.,齐广平.,汪精海.,康燕霞.,史晓巍.,...&栗志.(2018).西北荒漠灌区紫花苜蓿产量和营养品质对水肥调控的响应.甘肃农业大学学报,53(6),171-179,186.
MLA	马彦麟,et al."西北荒漠灌区紫花苜蓿产量和营养品质对水肥调控的响应".甘肃农业大学学报 53.6(2018):171-179,186.