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Irrigation and biochar effects on pearl millet and kinetics of ammonia volatilization from saline sandy soils

文献类型： 外文期刊

作者： Ding, Zheli 1 ; Majrashi, Mosaed A. 2 ; Ghoneim, Adel M. 3 ; Ali, Esmat F. 4 ; Eissa, Mamdouh A. 5 ; El Shal, Rania 6 ;

作者机构： 1.Chinese Acad Trop Agr Sci CATAS, Haikou Expt Stn, Haikou, Hainan, Peoples R China

2.King Saud Univ, Fac Food & Agr Sci, Dept Soil Sci, POB 2460, Riyadh 11451, Saudi Arabia

3.Agr Res Ctr, Field Crops Res Inst, Giza, Egypt

4.Taif Univ, Coll Sci, Dept Biol, POB 11099, At Taif 21944, Saudi Arabia

5.Assiut Univ, Fac Agr, Dept Soils & Water, Assiut 71526, Egypt

6.Tanta Univ, Fac Agr, Dept Soil & Water Sci, POB 31527, Tanta, Egypt

关键词： Low fertile; Kinetics; Pennistum glaucum; Nutritive value; Biochemical compounds

期刊名称：JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION （ 影响因子：3.61； 五年影响因子：3.581 ）

ISSN： 0718-9508

年卷期： 2022 年 22 卷 2 期

页码：

收录情况： SCI

摘要： Little information is available about biochar's role in kinetics of ammonia (NH3) volatilization and growth of pearl millet (Pennisetum glacum L.) cultivated on a saline sandy soil under different levels of soil moisture. A field experiment was carried out for two years to explore biochar impacts in reducing the hazards of salts and NH3 volatilization from saline sandy soils. Biochar was added in three doses (0, 5 (BC5), and 10 (BC10) ton ha(-1)) and the soil was irrigated to 100% (I-1(00)), 80% (I-80), and 60% (I-60) of plant-available soil water. The experiment was factorial (3 x 3) and was laid out in a split plot design. results: Biochar enhanced the soil quality, availability and concentrations of nutrients in plant, and chlorophyll synthesis, on the other hand it reduced Na, Cl, and proline in the leaf tissue. Increasing the soil moisture from I-60 to I-100 elevated nutrients availability in soil and concentrations of nutrients in plant and caused remarkable increases in the quality of forage material. I-100 enhanced the forage yield by 21.2 and 36.6%, respectively, in the first and second year compared with I-60. BC5 and BC10 enhanced the forage yield by 18.4 and 31.8% and caused 19.1 and 34.7% increases in the water use efficiency (overall the irrigation treatments). Increasing the soil moisture and the application of biochar reduced NH3-volatilization. Biochar and soil moisture status affected significantly on the kinetics of NH3 loss and the half-life time. I-100 increased the half-life time by 78.7% in comparison with I-60. Addition of BC5 and BC10 to the soil elevated the half-life time by 13.5 and 35.8% compared to the control. BC10 and I-100 reduced the NH3 volatilization and enhanced the forage yield of pearl millet. Controlling soil moisture and adding biochar are important strategies to minimize the negative impacts of salinity and reduce the emission of NH3 in addition to improving the performance of saline sandy soils.

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