干旱区生态环境知识资源中心(Arid): 水氮耦合对干热区小粒咖啡产量和品质的影响

Arid

	水氮耦合对干热区小粒咖啡产量和品质的影响
其他题名	Effect of Water and Nitrogen Coupling on Yield and Quality of Arabica Coffee in Dry-hot Area
	刘小刚; 郝琨; 韩志慧; 余宁; 杨启良; 刘艳伟
来源期刊	农业机械学报
ISSN	1000-1298
出版年	2016
卷号	47 期号:2 页码:143-150,161
中文摘要	为探明干热区小粒咖啡优质高产的水肥管理模式,通过连续2a大田试验研究旱季4个灌水水平(充分灌水W_1和亏缺灌水W_2、W_3、W_4, W_2、W_3和W_4灌水量分别为W_1的80%、60%和40%)和3个施氮水平(N_1:140g/棵、N_2:100g/棵和N_3:60g/棵,纯氮量)对小粒咖啡产量、品质及水分利用效率的影响,并通过主成分分析对综合营养品质进行评价。结果表明,与W_4相比,提高灌水量可增加干豆产量42.8%~151.0%、生豆中绿原酸含量16.9%~31.5%,水分利用效率随灌水量的提高先增后减,W_2的水分利用效率最大。与N_3相比,提高施氮量增加干豆产量、水分利用效率、生豆中蛋白质和绿原酸含量分别为32.9%~42.6%、32.0%~45.8%、5.9%~9.7%和7.0%~12.6%,N_2的干豆产量和水分利用效率最大。与W_4N_3相比,提高水氮用量能同时增加干豆产量和水分利用效率,分别增加22.0%~307.5%和18.2%~205.3%。W_1N_2处理获得2a的最大均产,为5587.42kg/hm~2。主成分分析结果表明,W_2N_2的综合营养品质最优,而水氮不协调会导致品质下降。与W_4N_3相比,W_2N_2显著提高干豆产量、水分利用效率和生豆中蛋白质和绿原酸含量,降低粗纤维含量。因此,从优质高产角度考虑,干热区小粒咖啡的水氮耦合模式为W_2N_2组合。
英文摘要	The yield and quality of arabica coffee cannot be guaranteed because of serious contradictory of water and heat, soil impoverishment and serious seasonal drought in Yunnan dry-hot valley. The objective of the research was to explore water and fertilizer management mode for good quality and proper yield of arabica coffee. Four levels of irrigation in dry season, i.e., sufficient irrigation level (W_1) and three deficit irrigation levels (W_2, W_3 and W_4 ), were designed with irrigation amounts for W_2, W_3 and W_4 as 80%, 60% and 40% of W_1, respectively, and three levels of nitrogen, i.e., N_1 (140g/plant), N_2 (100g/plant), N_3 (60g/plant), were applied. The effect of drip irrigation and nitrogen levels on yield, quality and water use efficiency (WUE) of arabica coffee was studied by field experiments for two consecutive years, and the comprehensive nutritional quality was evaluated by principal component analysis. The results showed that compared with W_4 treatment, improving irrigation amount increased dry bean yield and chlorogenic acid of dry bean by 42.8%~151.0% and 16.9%~31.5%, respectively. WUE was firstly increased and then decreased with irrigation amount, WUE of W_2 treatment was the largest. Improving nitrogen application rate increased dry bean yield, WUE, protein and chlorogenic acid of dry bean by 32.9%~42.6%, 32.0%~45.8%, 5.9%~9.7% and 7.0%~12.6%, respectively, and the yield of dry bean and WUE of N_2 were the largest compared with N_3 treatment. Compared with W_4N_3 treatment, improving irrigation amount and nitrogen application rate could increase dry bean yield and WUE by 22.0%~307.5% and 18.2%~205.3%, respectively. W_1N_2 treatment obtained the largest average dry bean yield of 5587.42kg/hm~2 in two years. Principal component analysis showed that the comprehensive nutritional quality of W_2N_2 treatment was the best, and in coordination between water and nitrogen resulted in decrease of yield and quality. Compared with W_4N_3, W_2N_2 treatment increased dry bean yield and WUE greatly, meanwhile it increased protein and chlorogenic acid but reduced fiber of dry bean significantly. On the basis of water-saving and high efficiency along with good quality and proper yield, the suitable mode of water and nitrogen management of arabica coffee was the combination of W_2 and N_2 treatments (W_2N_2) in arid-hot area.
中文关键词	小粒咖啡 ; 亏缺灌溉 ; 氮肥 ; 产量 ; 品质 ; 综合评价
英文关键词	arabica coffee deficit irrigation nitrogen fertilizer yield quality comprehensive evaluation
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURAL ENGINEERING
WOS研究方向	Agriculture
CSCD记录号	CSCD:5634816
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/234654
作者单位	昆明理工大学现代农业工程学院, 昆明, 云南 650500, 中国
推荐引用方式 GB/T 7714	刘小刚,郝琨,韩志慧,等. 水氮耦合对干热区小粒咖啡产量和品质的影响[J],2016,47(2):143-150,161.
APA	刘小刚,郝琨,韩志慧,余宁,杨启良,&刘艳伟.(2016).水氮耦合对干热区小粒咖啡产量和品质的影响.农业机械学报,47(2),143-150,161.
MLA	刘小刚,et al."水氮耦合对干热区小粒咖啡产量和品质的影响".农业机械学报 47.2(2016):143-150,161.