Kumar Vinod, Chopra A K
Department of Zoology and Environmental Science, Faculty of Life Sciences, Gurukula Kangri University, Haridwar-249404 (Uttarakhand), India.
Pak J Biol Sci. 2013 Nov 15;16(22):1426-37. doi: 10.3923/pjbs.2013.1426.1437.
The ferti-irrigational effect of an agro-based paper mill effluent on Abelmoschus esculentus (var. IHR-31) was investigated. Different doses of paper mill effluent viz. 5, 10, 25, 50, 75 and 100% were used for fertigation ofA. esculentus along with bore well water (control). The study revealed that paper mill effluent had significant (p < 0.05) effect on EC, pH, OC, Na+, K+, Ca2+, Mg2+, Fe2+, TKN, PO4(3-), SO4(2-), Cd, Cr, Cu, Mn and Zn of the soil in both seasons. Insignificant (p > 0.05) changes in WHC and bulk density of the soil were observed after irrigation with paper mill effluent. The agronomical performance of A. esculentus was increased from 5 to 25% and decreased from 50 to 100% concentration of paper mill effluent as compared to control in both seasons. The heavy metals concentration was increased in A. esculentus from 5 to 100% concentrations of paper mill effluent in both seasons. Biochemical components like crude proteins, crude fiber and crude carbohydrates were found maximum with 25% paper mill effluent in both seasons. The order of Contamination Factor (Cf) of various heavy metals was Cr > Cd > Mn > Zn > Cu for soil and Zn > Mn > Cu > Cr > Cd for A. esculentus plants after fertigation with paper mill effluent. Therefore, paper mill effluent can be used as a biofertigant after appropriate dilution to improve yield of A. esculentus.
研究了一家以农业为基础的造纸厂废水对秋葵（品种IHR - 31）的施肥灌溉效果。使用不同剂量的造纸厂废水，即5%、10%、25%、50%、75%和100%，与井水（对照）一起对秋葵进行施肥灌溉。研究表明，造纸厂废水在两个季节对土壤的电导率（EC）、pH值、有机碳（OC）、钠离子（Na⁺）、钾离子（K⁺）、钙离子（Ca²⁺）、镁离子（Mg²⁺）、亚铁离子（Fe²⁺）、总凯氏氮（TKN）、磷酸根离子（PO₄³⁻）、硫酸根离子（SO₄²⁻）、镉（Cd）、铬（Cr）、铜（Cu）、锰（Mn）和锌（Zn）都有显著（p < 0.05）影响。用造纸厂废水灌溉后，土壤的田间持水量（WHC）和容重变化不显著（p > 0.05）。与对照相比，在两个季节中，秋葵的农艺性能在造纸厂废水浓度为5%至25%时有所提高，而在浓度为50%至100%时则下降。在两个季节中，秋葵中重金属浓度随造纸厂废水浓度从5%增加到100%而升高。在两个季节中，粗蛋白、粗纤维和粗碳水化合物等生化成分在造纸厂废水浓度为25%时含量最高。用造纸厂废水施肥灌溉后，土壤中各种重金属的污染因子（Cf）顺序为：铬（Cr）>镉（Cd）>锰（Mn）>锌（Zn）>铜（Cu）；秋葵植株中则为：锌（Zn）>锰（Mn）>铜（Cu）>铬（Cr）>镉（Cd）。因此，造纸厂废水经过适当稀释后可作为生物肥料用于提高秋葵产量。
