Effect of Desulfurized Gypsum and Magnetized Water on Photosynthetic Characteristics of Buckwheat under Salt-alkali Stress

被引：0
|
作者：
Ning S. [1 ]
Zhao X. [1 ]
Ji M. [1 ]
Wang Q. [1 ]
机构：
[1] State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an
来源：
Nongye Jixie Xuebao/Transactions of the Chinese Society for Agricultural Machinery | 2020年 / 51卷 / 10期
关键词：
Buckwheat; Desulfurized gypsum; Light response model; Magnetized water; Photosynthetic characteristics; Saline-alkali soil;
D O I：
10.6041/j.issn.1000-1298.2020.10.035
中图分类号：
学科分类号：
摘要：
In order to explore the response and adaptation mechanisms of buckwheat photosynthesis to different improvement measures in saline-alkali soil, a pot experiment was set up to determine the photosynthetic light response characteristics of buckwheat under saline-alkali soil treated with desulfurized gypsum and magnetized water. With the aim to determine the optimal model which can calculate the photosynthetic characteristic parameters of buckwheat, the light response curves of buckwheat leaf were analyzed by the rectangular hyperbola model, non-rectangular hyperbola model and modified rectangular hyperbola model and exponential model. The results showed that the effect of irrigation with magnetized water on the photosynthetic characteristics of buckwheat was obvious, and the net photosynthetic rate was increased and then decreased with the increase of desulphurized gypsum application, under saline-alkali stress. The non-rectangular hyperbola model had the highest simulation accuracy and it can be used as the optimal model to describe the light response curve of buckwheat. Using the optimal light response curve model analysis showed that the photosynthetic characteristic parameters (e.g. dark respiration rate, apparent quantum efficiency, maximum photosynthetic rate, light compensation point, and light saturation point) of buckwheat were significantly higher than that of the other quantity processing in the application of 11 t/hm2 desulfurized gypsum. And buckwheat leaves enhanced the adaptive ability of light intensity and promoted accumulation of organic matter. In addition, irrigation with magnetized water could enhance photosynthetic light response of buckwheat. The research result provided a reference for the development of effective regulation methods to alleviate the effects of soil saline-alkali stress on crop growth. © 2020, Chinese Society of Agricultural Machinery. All right reserved.
引用
收藏
页码：310 / 317
页数：7
相关论文
共 35 条
  • [1] LIANG Y C, YANG C G, SHI H H., Effects of silicon on growth and mineral composition of barley grown under toxic levels of aluminum, J. Plant Nutr, 24, 2, pp. 229-243, (2001)
  • [2] XU Pengcheng, LENG Xiangpeng, LIU Gengsen, Et al., Research progress in the improvement and utilization of saline-alkali soil, Jiangsu Agricultural Science, 42, 5, pp. 293-298, (2014)
  • [3] CLARK R B, RITCHEY K D, BALIGAR V C., Benefits and constraints for use of FGD products on agricultural land, Fuel, 80, 6, pp. 821-828, (2001)
  • [4] XU Shengguang, LI Shuyi, LIAO Xinrong, Et al., Study on the use of desulphurisation products in planting peanut in a pot-experiment, Soil and Environmental Sciences, 10, 1, pp. 23-26, (2001)
  • [5] LI Shuyi, LAN Peiling, XU Shengguang, Et al., Agricultural resource use study of desulphurization byproduct of burn coal smoke with acid soils, Ecologic Science, 22, 3, pp. 222-226, (2003)
  • [6] FRENKE H L., Solution of gypsum and improvement of sodic soil aroused by element exchange, J. Soil Sci, 40, 3, pp. 599-611, (1989)
  • [7] LI Yuejin, MIAO Qingwang, CHEN Changhe, Et al., Influence of sodication and chemical improvement on soil aggregate, Journal of Arid Land Resources and Environment, 20, 1, pp. 136-139, (2006)
  • [8] WANG Jiahang, YANG Peiling, REN Shumei, Et al., Effect of flue gas desulphurized gypsum and sodic soil reclamation by leaching water on soil salt distribution and the growth of crop, Journal of China Agricultural University, 22, 9, pp. 123-132, (2017)
  • [9] LI Qian, SUN Zhaojun, QIN Ping, Et al., Amelioration of saline-sodic soil with the by-product of flue gas desulphurization(BFGD) and furfural residue, Agricultural Research in the Arid Areas, 26, 4, pp. 70-73, (2008)
  • [10] ZHANG Junhua, SUN Zhaojun, JIA Keli, Et al., Effect of desulfurization gypsum and special soil amendment for improvement of takyr solonetzs, Acta Agriculturae Boreali-occidentalis Sinica, 18, 5, pp. 208-212, (2009)
1234