干旱区生态环境知识资源中心(Arid): 全膜覆土下施有机肥对春小麦旗叶碳氮比、光合特性和产量的影响

Arid

	全膜覆土下施有机肥对春小麦旗叶碳氮比、光合特性和产量的影响
其他题名	Effects of organic fertilizer application on flag leaf C/N ratio,photosynthetic characteristics and yield of spring wheat with full plastic film mulching
	尹嘉德; 侯慧芝; 张绪成; 王红丽; 于显枫; 方彦杰; 马一凡; 张国平; 雷康宁
来源期刊	应用生态学报
ISSN	1001-9332
出版年	2020
卷号	31 期号:11
中文摘要	于2016和2017年,以春小麦品种陇春27'为试验材料,在甘肃省中部半干旱雨养农业区设置定位试验,分析全膜覆土平作穴播(PMS) 、全膜覆土平作穴播+有机肥(PMO) 、裸地平作穴播(CK) 3个处理春小麦抽穗至灌浆阶段土壤水分与群体冠层温度、净光合速率(P_n ) 、气孔导度(g_s ) 、蒸腾速率(T_r ) 、旗叶C /N、旗叶全氮之间的相互关系,探讨不同处理对产量及其构成要素的影响。结果表明:施用有机肥可提高小麦生育中后期土壤含水量,PMO抽穗至灌浆阶段0~ 300 cm土层土壤贮水量较PMS和CK分别提高4.6%和8.5%,群体冠层温度分别降低0.1 ~ 1.3 ℃和1.4 ~ 4.9 ℃,P_n分别提高9.3%和29.7%,g_s分别提高30.9%和103.8%,T_r分别提高5.1%和55.0%,全氮含量分别提高6.6%和1 8.9%,C /N分别降低6.4%和22.8%。收获后,PMO较PMS和CK显著促进穗粒数和千粒重增加,籽粒产量分别提高9.1%和53.7%。抽穗至灌浆阶段旗叶P_n和g_s与C /N呈负相关性; C /N与籽粒产量呈显著负相关。因此,半干旱区全膜覆土穴播条件下施有机肥可提高春小麦抽穗至灌浆阶段土壤含水量,促进旗叶光合作用,有利于降低生理干旱胁迫强度和旗叶氮吸收同化限制,促进穗粒数和粒重增加,使产量提升。
英文摘要	A field experiment was conducted in the rain-fed semi-arid region of central Gansu in 2016 and 2017,with the treatments 1) hill-drop flat planting with full plastic film mulching (PMS),2) hill-drop flat planting with full plastic film mulching plus organic fertilizers (PMO), and 3) hill-drop flat planting without soil mulching (CK). We investigated the relations among soil moisture,photosynthetic rate (P_n ),stomatal conductance (g_s ) and transpiration rate (T_r ),C /N ratio,and total nitrogen of flag leaf from the heading stage to the seed-filling stage in different treatments to probe into their effects on the yield and yield components of spring wheat varietyLongchun 27'. The results showed that organic fertilizer application could increase soil moisture at the middle and late growth stages of spring wheat. PMO increased soil water storage in 0-300 cm depth from the heading stage to the seed filling stage by 4.6% and 8.5%,decreased population canopy temperature by 0.1-1.3 ℃ and 1.4-4.9 ℃,increased net photosynthetic rate of flag leaf by 9.3% and 29.7%,stomatal conductance by 30.9% and 103.8%,transpiration rate by 5.1% and 55.0%, total nitrogen content by 6.6% and 18.9%,and decreased C /N ratio by 6.4% and 22.8%,respectively. Compared with PMS and CK,PMO significantly improved grain number per spike and 1000-grain weight,and increased grain yield by 9.1% and 53.7%,respectively. From the heading stage to filling stage,the P_n and g_s of flag leaf had negative correlation with C /N,while C /N was negatively correlated with grain yield. Consequently,PMO could improve soil water storage and promote photosynthesis of flag leaf,reduce the intensity of physiological drought stress and the limitations of nitrogen absorption and assimilation in flag leaf from the heading stage to the seed-filling stage,and increase grain number and grain weight and consequently the yield of spring wheat in semi-arid region.
中文关键词	全膜覆土 ; 有机肥 ; 土壤水分 ; 光合特性 ; 旗叶碳氮比
英文关键词	full plastic film mulching organic fertilizer soil moisture photosynthetic characteristics flag leaf C /N ratio
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:6846877
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/353976
作者单位	尹嘉德, 甘肃省农业科学院旱地农业研究所, 兰州, 甘肃 730070, 中国. 侯慧芝, 甘肃省农业科学院旱地农业研究所, 兰州, 甘肃 730070, 中国. 张绪成, 甘肃省农业科学院旱地农业研究所, 兰州, 甘肃 730070, 中国. 王红丽, 甘肃省农业科学院旱地农业研究所, 兰州, 甘肃 730070, 中国. 于显枫, 甘肃省农业科学院旱地农业研究所, 兰州, 甘肃 730070, 中国. 方彦杰, 甘肃省农业科学院旱地农业研究所, 兰州, 甘肃 730070, 中国. 马一凡, 甘肃省农业科学院旱地农业研究所, 兰州, 甘肃 730070, 中国. 张国平, 甘肃省农业科学院旱地农业研究所, 兰州, 甘肃 730070, 中国. 雷康宁, 甘肃省农业科学院旱地农业研究所, 兰州, 甘肃 730070, 中国.
推荐引用方式 GB/T 7714	尹嘉德,侯慧芝,张绪成,等. 全膜覆土下施有机肥对春小麦旗叶碳氮比、光合特性和产量的影响[J],2020,31(11).
APA	尹嘉德.,侯慧芝.,张绪成.,王红丽.,于显枫.,...&雷康宁.(2020).全膜覆土下施有机肥对春小麦旗叶碳氮比、光合特性和产量的影响.应用生态学报,31(11).
MLA	尹嘉德,et al."全膜覆土下施有机肥对春小麦旗叶碳氮比、光合特性和产量的影响".应用生态学报 31.11(2020).