%A ZHAO Di,, WANG Zhenhua,*, LI Wenhao,, ZHANG Jinzhu,, LYU Desheng,, ZHANG Jifeng,ŠĪ
%T Effects of alternate root-zone irrigation on physiological growth and yield of processing tomatoes in northern Xinjiang
%0 Journal Article
%D 2018
%J Journal of Drainage and Irrigation Machinery Engin
%R 10.3969/j.issn.1674-8530.18.1011
%P 662-667
%V 36
%N 8
%U {http://zzs.ujs.edu.cn/pgjx/CN/abstract/article_2481.shtml}
%8 2018-08-25
%X Alternate root-zone irrigation is widely used in horticultural crops and crops to achieve the purpose of high efficiency and water saving. In this study, a barrel planting experiment was conducted to study the physiological growth and yield changes of processing tomatoes at three irrigation levels(W1: 5 850 m3/hm2, W2: 4 500 m3/hm2, W3: 3 150 m3/hm2)by combining three irrigation metho-ds(AI, FI, CI)with drip irrigation film mulching. The results show that under W1 condition, AI, compared with CI, significantly increases root dry matter quality, yield and water use efficiency by 5.95%, 16.87% and 17.29% respectively. Compared with FI, it increases root dry matter quality, yield and water use efficiency by 14.62%, 19.77% and 8.33% respectively. The maximum value of SPAD, Fv/Fm, Qp, Pn and iWUE are all in AIW1 treatment, the maximum value of non-photochemical quenching coefficient Npq is appeared in FIW3 treatment. There is a good correlation between yield, net photosynthetic rate and root-shoot ratio. In summary, AIW1 is the best irrigation mode that is conducive to the efficient water-saving and yield increase of processing tomatoes.ŠĪ