干旱区生态环境知识资源中心(Arid): 不同施肥水平下全膜双垄沟播玉米土壤酶活性及氮磷养分含量的动态变化

Arid

	不同施肥水平下全膜双垄沟播玉米土壤酶活性及氮磷养分含量的动态变化
其他题名	Dynamics of soil enzyme activity and N and P content under different fertilizer rates in maize field with full plastic-film mulching on double ridges and planting in catchment furrows
	刘宏胜; 徐振峰; 闫志利; 牛俊义; 高玉红; 李洋
来源期刊	干旱地区农业研究
ISSN	1000-7601
出版年	2013
卷号	31 期号:5 页码:61-68
中文摘要	为进一步完善全膜双垄沟播玉米栽培技术体系,采用大田随机区组试验法,研究了不同施肥水平下全膜双垄沟播玉米土壤酶活性及氮磷养分含量的动态变化情况。结果表明:在玉米生长前期,土壤脲酶、碱性磷酸酶、蔗糖酶活性以及碱解氮、速效磷含量均呈现快速增长趋势。脲酶、蔗糖酶、过氧化氢酶活性和碱解氮含量均在拔节期达到最大值,碱性磷酸酶活性和速效磷含量在抽雄期达到最大值。在玉米生长后期,各种土壤酶活性和氮磷养分含量又呈降低趋势。土壤脲酶活性与氮磷养分含量,土壤碱性磷酸酶活性与速效磷含量均存在显著或极显著正相关关系,土壤蔗糖酶活性与氮磷养分含量也存在显著的正相关关系,而土壤过氧化氢酶活性与氮磷养分含量之间,土壤碱性磷酸酶活性与碱解氮之间无显著相关关系。西北干旱半干旱地区全膜双垄沟播玉米种植密度确定为6.75*10~4株?hm~(-2)时,最佳施肥量为纯N 210 kg?hm~(-2)、P_2O_5 168 kg?hm~(-2)。
英文摘要	To further improve maize technical system with full plastic-film mulching on double ridges and planting in catchment furrows, the field experiment was conducted to determine the dynamic response of the enzyme activity and the content of N (nitrogen) and P (phosphate) in two soil segments (0 to 20 cm and 20 to 40 cm) to different N and P fertilizer application rates, using a randomized complete block design with three replications. The results revealed that the activity of soil urease, phosphatase and invertase as well as the content of soil available N and available P consistently followed a rapid increasing trend during the early growing period of maize. The activity of urease, invertase and catalase and the content of available N peaked at jointing stage, while the highest value of phosphatase activity and available P content occurred at tasselling stage. However, the activity of various soil enzymes and the content of N and P declined during the late growing period. There existed positively significant (P<0.05) or extremely significant (P<0.01) correlations between urease activity and N and P content as well as between alkaline phosphatase activity and available P content. Invertase activity is positively correlated to available N and P content at significant (P<0.05) level. There was no significant correlation between catalase activity and N and P content, as well as between alkaline phosphatase activity and available N. In the arid or semiarid areas of northwest China, the optimal fertilizer application rate for maize with full plastic-film mulching on double ridges and planting in catchment furrows was N 210 kg?hm~(-2) and P_2O_5 168 kg?hm~(-2) when the plant density was 6.75*10~4 plant?hm~(-2).
中文关键词	全膜双垄沟播玉米 ; 施肥 ; 酶活性 ; 氮磷养分 ; 动态变化
英文关键词	maize with full plastic-film mulching on double ridges and planting in catchment furrows fertilizer application enzyme activity N and P nutrient dynamic change
类型	Article
语种	中文
国家	中国
收录类别	CSCD
WOS类目	Agriculture
WOS研究方向	Agriculture
CSCD记录号	CSCD:4957330
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/2XILL650/229491
作者单位	刘宏胜, 甘肃省会宁县农牧局, 会宁, 甘肃 730799, 中国.; 徐振峰, 甘肃农业大学农学院, 兰州, 甘肃 730070, 中国.; 牛俊义, 甘肃农业大学农学院, 兰州, 甘肃 730070, 中国.; 高玉红, 甘肃农业大学农学院, 兰州, 甘肃 730070, 中国.; 李洋, 甘肃农业大学农学院, 兰州, 甘肃 730070, 中国.; 闫志利, 河北科技师范学院, 秦皇岛, 河北 066004, 中国.
推荐引用方式 GB/T 7714	刘宏胜,徐振峰,闫志利,等. 不同施肥水平下全膜双垄沟播玉米土壤酶活性及氮磷养分含量的动态变化[J]. 甘肃农业大学,2013,31(5):61-68.
APA	刘宏胜,徐振峰,闫志利,牛俊义,高玉红,&李洋.(2013).不同施肥水平下全膜双垄沟播玉米土壤酶活性及氮磷养分含量的动态变化.干旱地区农业研究,31(5),61-68.
MLA	刘宏胜,et al."不同施肥水平下全膜双垄沟播玉米土壤酶活性及氮磷养分含量的动态变化".干旱地区农业研究 31.5(2013):61-68.