干旱区生态环境知识资源中心(Arid): 氮磷互作对不同茬次滴灌苜蓿生产性能及营养品质的影响

Arid

	氮磷互作对不同茬次滴灌苜蓿生产性能及营养品质的影响
其他题名	Effects of nitrogen and phosphorus fertilizer rate on hay yield and nutritional quality of alfalfa under drip irrigation
	苗晓茸; 孙艳梅; 于磊; 马春晖; 张前兵
来源期刊	草业学报
ISSN	1004-5759
出版年	2019
卷号	28 期号:9 页码:55-66
中文摘要	为探讨滴灌条件下不同氮磷互作模式对绿洲区滴灌苜蓿生产性能及营养品质的影响,本试验设置施N 105 (N1)和210kg·hm~(-2)(N2)2种梯度,施P_2O_50(CK)、50(P1)、100(P2)和150kg·hm~(-2)(P3)4种施磷梯度,交互配施共8个处理(N1P0、N1P1、N1P2、N1P3、N2P0、N2P1、N2P2、N2P3),采用随机区组设计,对滴灌苜蓿各生长性状、干草产量及营养品质进行测定。结果表明:N1条件下,前3茬中,苜蓿的株高、茎粗、生长速度、干草产量和粗蛋白质含量均表现为P2处理大于其他处理;N2条件下,苜蓿的株高、茎粗、生长速度、干草产量和粗蛋白质含量均表现为P1处理大于其他处理;N1、N2条件下,各茬次苜蓿叶片、茎秆的酸性洗涤纤维、中性洗涤纤维含量均表现为P2处理小于其他处理。P0、P2和P3条件下,前3茬中,苜蓿的株高、茎粗、生长速度、干草产量和粗蛋白质含量均表现为N1处理大于N2处理;相同施磷条件下,苜蓿叶片、茎秆的酸性洗涤纤维、中性洗涤纤维含量均表现为N1处理小于N2处理。通过对苜蓿各生长性状指标与干草产量灰色关联度分析表明,生长速度和茎粗对苜蓿干草产量的贡献率较大,株高和茎叶比对苜蓿干草产量的贡献率较小。通过模糊相似优先比评价表明,不同氮磷处理下滴灌苜蓿各茬次的较优施肥模式为N1P2处理,此处理下,苜蓿能够获得较高干草产量(25103.19kg·hm~(-2))、高蛋白含量(叶:23.60%~26.47%、茎:10.57%~11.76%)、低酸性洗涤纤维含量(叶:13.28%~17.41%、茎:38.63%~ 47.21%)和低中性洗涤纤维含量(叶:18.18%~22.93%、茎:49.53%~59.83%)。在新疆绿洲区,施氮(N)105kg· hm~(-2)、磷(P_2O_5)100kg·hm~(-2)有利于促进滴灌苜蓿干草产量的形成及营养品质的提高。
英文摘要	This research explored the effects of different nitrogen and phosphorus fertilizer rates and their interaction on productivity and nutritional value of alfalfa under drip irrigation in the oasis region of Xinjiang.A randomized block design of two nitrogen levels(105and 210kg·ha~(-1))and four levels of P_2O_5(0,50,100and 150kg·ha~(-1))was used,making a total of 8treatments(N1P0,N1P1,N1P2,N1P3,N2P0,N2P1,N2P2, N2P3).Growth traits,hay yield and the nutritional value of the alfalfa were studied.It was found that under the N1treatment,the plant height,stem diameter,growth rate,hay yield and crude protein of alfalfa in the P2 treatment were greater than other treatments in the first three cuts.However,under the N2treatment these same responses were greater than other treatments in the P1treatment.The contents of acid detergent fiber and neutral detergent fiber in alfalfa leaves and stems in the P2treatment were lower than other treatments at each cut under N1and N2treatments.The plant height,stem diameter,growth rate,hay yield and crude protein of alfalfa in the N1treatment were higher than the N2treatment under P0,P2and P3treatments.Under the same phosphorus application conditions,the contents of acid detergent fiber and neutral detergent fiber in the N1 treatment were lower than the N2treatment in leaves and stems of alfalfa.Through grey correlation analysis between growth traits index and hay yield of alfalfa it was shown that growth rate and stem diameter had major contributions to hay yield of alfalfa,but the plant height and stem∶leaf ratio had lesser contributions.Through fuzzy similarity priority ratio,the optimal fertilization mode at each cut of alfalfa among the eight treatments under drip irrigation was identified as the N1P2treatment.Under this regime alfalfa produced a high hay yield of 25103.19kg·ha~(-1),with a leaf protein content range of 23.60%-26.47% and a stem protein range of 10.57%-11.76%,together with lower acid detergent fiber contents(leaf:13.28%-17.41%,stem:38.63%-47.21%)and lower neutral detergent fiber contents(leaves:18.18%-22.93%,stem:49.53%-59.83%). Therefore,the combination of nitrogen(N)at 105kg·ha~(-1) and phosphorus(P_2O_5)at 100kg·ha~(-1) were optimal for high hay yield and improved nutritional quality of alfalfa under drip irrigation in the Xinjiang oasis area.
中文关键词	苜蓿 ; 氮磷互作 ; 滴灌 ; 干草产量 ; 营养品质
英文关键词	alfalfa nitrogen and phosphorus interaction drip irrigation hay yield nutritional quality
语种	中文
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6572942
来源机构	石河子大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/316192
作者单位	石河子大学动物科技学院, 石河子, 新疆 832003, 中国
推荐引用方式 GB/T 7714	苗晓茸,孙艳梅,于磊,等. 氮磷互作对不同茬次滴灌苜蓿生产性能及营养品质的影响[J]. 石河子大学,2019,28(9):55-66.
APA	苗晓茸,孙艳梅,于磊,马春晖,&张前兵.(2019).氮磷互作对不同茬次滴灌苜蓿生产性能及营养品质的影响.草业学报,28(9),55-66.
MLA	苗晓茸,et al."氮磷互作对不同茬次滴灌苜蓿生产性能及营养品质的影响".草业学报 28.9(2019):55-66.