当前位置: X-MOL 学术Agric. Water Manag. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effect of utilization of treated wastewater and seawater with Clinoptilolite-Zeolite on yield and yield components of sorghum
Agricultural Water Management ( IF 6.7 ) Pub Date : 2020-05-01 , DOI: 10.1016/j.agwat.2020.106117
Fakhroddin GhassemiSahebi , Omolbani Mohammadrezapour , Masoomeh Delbari , Abbas KhasheiSiuki , Henk Ritzema , Ali Cherati

Abstract Under conditions of water shortage, utilizing unconventional waters, such as treated urban wastewater and/or seawater, in combination with soil amendments such as zeolite, can reduce the harmful effects of drought stress on crop yield. To investigate the agronomic and physiological effects of a mix of water qualities and soil treatments on sorghum, a randomized split-plot research was conducted at Gharakheil agricultural research station, Ghaemshahr, Northeast Iran. Six combinations of water qualities and three different use of soil amendments were tested over two seasons in 2016 and 2017. The water quality treatments with increasing salinity included well water as the control (W1); 75 % well water and 25 % seawater (W2); 25 % well water and 75 % seawater (W3); 100 % treated urban wastewater alternating with 100 % seawater (W4); 50 % seawater and 50 % treated urban wastewater (W5) and 100 % treated urban wastewater (W6). The soil amendments were no-zeolite as the control (Z1) and calsic (Z2) and potasic (Z3) zeolite. With increasing salinity, the forage yield decreased significantly. Maximum and minimum forage yield were respectively 129.6 ton.ha−1 inW6-Z2 in 2016 and 46.9 ton.ha−1 in W3-Z1 in 2017. Irrigation Water Use Efficiency (IWUE) was the highest with the treated urban wastewater in combination with zeolite. All six combinations (W4-Z2, W4-Z3, W5-Z2, W5-Z3, W6-Z2 and W6-Z3) had significantly higher IWUEs (range 2.0–2.4) compared to the control (IWUE = 1.7) and the other soil and water treatments. The combinations of 75 % seawater and no zeolite had by far the lowest IWUE (range 1.1–1.7). The same trends were observed for the Leaf Area Index (LAI) and leaf and stem protein. The use of saline sea water increased the soil salinity levels significantly, but the levels were still well below the FAO threshold values for yield reduction. Overall, we can recommend use of treated wastewater in combination with calsic zeolite soil amendment as the combination that had the best effect on crop yield, IWUE, LAI and leaf and stem protein for sorghum production under the conditions of north of Iran.

中文翻译:

斜发沸石-沸石处理废水和海水对高粱产量和产量构成的影响

摘要 在缺水条件下,利用非常规水域,如处理过的城市废水和/或海水,结合沸石等土壤改良剂,可以减少干旱胁迫对作物产量的有害影响。为了研究混合水质和土壤处理对高粱的农艺和生理影响,在伊朗东北部 Ghaemshahr 的 Gharakheil 农业研究站进行了一项随机裂区研究。2016 年和 2017 年两个季节测试了六种水质组合和三种不同土壤改良剂的使用。75% 井水和 25% 海水 (W2);25% 井水和 75% 海水 (W3);100 % 处理过的城市废水与 100 % 海水 (W4) 交替;50% 海水和 50% 处理过的城市废水 (W5) 和 100% 处理过的城市废水 (W6)。土壤改良剂是无沸石作为对照 (Z1) 和钙质 (Z2) 和钾质 (Z3) 沸石。随着盐度的增加,牧草产量显着下降。2016 年 W6-Z2 的最大和最小牧草产量分别为 129.6 吨.公顷-1 和 2017 年 W3-Z1 的 46.9 吨.公顷-1。沸石。与对照 (IWUE = 1.7) 和其他组合相比,所有六种组合(W4-Z2、W4-Z3、W5-Z2、W5-Z3、W6-Z2 和 W6-Z3)均具有显着更高的 IWUE(范围 2.0-2.4)土壤和水处理。迄今为止,75% 海水和无沸石的组合具有最低的 IWUE(范围 1.1-1.7)。对于叶面积指数 (LAI) 以及叶和茎蛋白,观察到相同的趋势。咸海水的使用显着增加了土壤盐分水平,但该水平仍远低于粮农组织减产的阈值。总体而言,我们可以推荐将处理后的废水与钙沸石土壤改良剂结合使用,作为在伊朗北部条件下对作物产量、IWUE、LAI 以及用于高粱生产的叶和茎蛋白效果最佳的组合。
更新日期:2020-05-01
down
wechat
bug