南京农业大学学报2013，Vol.36Issue(4)：37-42,6.DOI:10.7685/j.issn.1000-2030.2013.04.007
梨树修剪枝和果实从树体移走的养分研究
Nutrient amounts removed by the pruning branches and the fruit harvest from the pear tree
摘要
Abstract
In order to make reasonable suggestions on the nutrition management in pear production,the content of mineral nutrient elements in pruning branches with different growing seasons and mature fruits of‘ Huangguan pear' and‘ Yali pear' was measured,and the total nutrient amounts removed from the pear trees by the pruning branches and fruit harvest were also calculated and analyzed.Results showed that the content of nitrogen (N),phosphorus (P),potassium (K),magnesium (Mg) and zinc (Zn) in the pruning branches decreased with the increase of growing seasons.The total amount of mineral nutrition elements removed from the tree by the pruning branches was calcium (Ca),N,K,Mg,P,iron (Fe),Zn and copper(Cu).Among them,the amount of N,P and K removed by the pruning was 60.3,5.47 and 32.9 kg· hm-2 each year,Ca and Mg was 155 and 8.11 kg· hm-2,Fe,Zn and Cu was 0.93,0.17and 0.14 kg·hm-2,respectively.The amount of nutrients removed by the harvest fruits was K,N,P,Mg,Ca,Fe,Cu and Zn,which was 70.5,25.4,5.42,4.2,3.68,0.14,0.03 and 0.02 kg· hm-2,respectively.The ratio of total N,P and K amount removed from the tree by both pruning branches and harvest fruits was 7.9 ∶ 1∶9.5.The total amount of N and P removed from the tree was similar between the two varieties,while the total amount of K,Ca,Mg,Fe,Zn and Cu removed from‘ Yali pear' tree was higher than that in ‘ Huangguan pear' tree.Therefore,the production should be based on species,the amount of annual pruning and fruit production,in order to establish reasonable pear nutrient management measures.关键词
梨树/修剪枝条/果实/养分Key words
pear tree/ pruning branches /fruit/ nutrient分类
农业科技引用本文复制引用
张乃文,董彩霞,徐阳春..梨树修剪枝和果实从树体移走的养分研究[J].南京农业大学学报,2013,36(4):37-42,6.基金项目
国家现代农业产业技术体系项目(CARS-29-15) （CARS-29-15）
