|
|
|
| Effects of water and fertilizer coupling on photosynthetic and chlorophyll contents of jujube under drip irrigation in south Xinjiang sandy area |
| HOU Yusheng1,2, WANG Zhenhua1,2*, LI Wenhao1,2, BIAN Qingyong1,2, LI Chaoyang1,2 |
| 1.College of Water Resources and Architectural Engineering, Shihezi University, Shihezi, Xinjiang 832000, China; 2.Key Laboratory of Modern Water-saving Irrigation, Xinjiang Production and Construction Group, Shihezi, Xinjiang 832000, China |
|
|
|
|
Abstract In order to explore effects of water and fertilizer coupling on photosynthetic characteristics and chlorophyll relative contents of jujube in southern Xinjiang sandy area, the 8-year mature magnificent jujube trees were used as test plant, and water and nitrogen two-factor, three-level Latin square experiments were conducted in a small-sized land under drip-irrigation conditions. The results show that the diurnal variation of net photosynthetic rate(Pn)and stomatal conductance(Gs)of jujube presents two peaks, but the diurnal variation of transpiration rate(Tr)has a single peak. For case W2F1, the variation profiles of intercellular CO2 concentration(Ci)and leaf water use efficiency(WUE)present a single peak as well, and the maximums of Pn, Tr and Gs increase by 34.8%, 10.74% and 7.14%, respectively, compared with those under ordinary flooding irrigation(CK). For case W2F3, the peak values of Ci and WUE increase by 29.04% and 8.33%, respectively, compared with CK. Note that both chlorophyll relative content and nitrogen content are in the maximum in W3F3 treatment, especially 6.00% and 9.49% higher than in CK, respectively. Unfortunately, W3F3 shows no significant difference from W2F1(P>0.05). Pn is closely related to Tr and Gs, but Pn is just slightly related to chlorophyll relative content and nitrogen content. There is a close correlation between chlorophyll relative content and nitrogen content but a low correlation with WUE. According to the experimental results, a preliminary conclusion can be reached that irrigation 820 mm and fertilizer 450 kg/hm2(W2F1)are the best water-fertilizer supply mode for water and fertilizer saving in southern Xinjiang sandy area.
|
|
Received: 30 March 2018
|
|
|
|
| [1]王景燕,龚伟,包秀兰,等. 水肥耦合对汉源花椒幼苗叶片光合作用的影响[J]. 生态学报,2016,36(5):1321-1330. WANG Jingyan, GONG Wei, BAO Xiulan, et al. Coupling effects of water and fertilizer on diurnal variation of photosynthesis of zanthoxylum bungeanum maxim Hanyuan seeding leaf[J]. Acta ecologica sinica, 2016,36(5): 1321-1330.(in Chinese)[2]李静,李志军,张富仓,等. 水氮供应对温室黄瓜叶绿素含量及光合速率的影响[J]. 干旱地区农业研究,2016,34(5):198-204. LI Jing, LI Zhijun, ZHANG Fucang, et al. Effects of water and nitrogen supply on chlorophyll content and photosynthetic rate of greenhouse cucumber[J]. Agricultural research in the arid areas, 2016, 34(5): 198-204.(in Chinese)[3]柴仲平,王雪梅,孙霞,等. 沼肥施用方式对红枣光合特性与水分利用效率的影响研究[J]. 干旱地区农业研究,2010,28(3):119-122,168. CHAI Zhongping, WANG Xuemei, SUN Xia, et al. Influence of different application ways of biogas waste fertilizer on photosynthetic characteristics and water use efficiency of zizyphus jujube[J]. Agricultural research in the arid areas,2010,28(3):119-122,168.(in Chinese)[4]付倩雯, 吴正保, 史彦江,等. 不同施肥方式对枣树生长及光合特性的影响[J]. 新疆农业科学, 2014, 51(12): 2189-2195. FU Qianwen, WU Zhengbao, SHI Yanjiang, et al. Effects of different fertilization methods on growth and photosynthetic traits of jujube(ziziphus jujuba mill)[J]. Xinjiang agricultural sciences, 2014, 51(12): 2189-2195.(in Chinese)[5]胡家帅,王振华,郑旭荣,等.灌水对滴灌红枣产量、品质及水分利用的影响[J].排灌机械工程学报,2016,34(12):1086-1092. HU Jiashuai,WANG Zhenhua,ZHENG Xurong. Effects of different irrigation treatments on drip irrigation red jujube′s yield,quality and water use efficiency[J]. Journal of drainage and irrigation machinery engineering, 2016, 34(12):1086-1092.(in Chinese)[6]刘英杰,郑增方,王齐,等. 施肥对川滇桤木幼苗叶绿素含量及光合生理的影响[J]. 林业调查规划,2014,39(4):135-138. LIU Yingjie,ZHENG Zengfang,WANG Qi, et al. Effects of fertilization on chlorophyll content and photosynthetic physiology of alnus cremastogyne[J]. Forest inventory and planning, 2014,39(4):135-138.(in Chinese)[7]柴仲平,王雪梅,孙霞,等. 红枣光合特性与水分利用效率日变化研究[J]. 西南农业学报,2010,23(1):168-172. CHAI Zhongping, WANG Xuemei, SUN Xia, et al. Research on diurnal of photosynthetic characteristics and water use efficiency of zizyphus jujube[J]. Southwest China journal of agricultural sciences, 2010, 23(1): 168-172.(in Chinese)[8]周罕觅,张富仓,ROGER Kjelgren,等.苹果幼树生理特性和水分生产率对水肥的响应研究[J].农业机械学报,2015,46(4):77-87. ZHOU Hanmi, ZHANG Fucang, ROGER Kjelgren, et al. Response of physiological properties and crop water productivity of young apple tree to water and fertilizer[J]. Transactions of the CSAM,2015,46(4): 77-87.(in Chinese) |
|
|
|
