Details

Autor(en) / Beteiligte

• Ding, Zheli
• Majrashi, Mosaed A.
• Ghoneim, Adel M.
• Ali, Esmat F.
• Eissa, Mamdouh A.
• Shal, Rania El

Titel

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

Ist Teil von

• Journal of soil science and plant nutrition, 2022-06, Vol.22 (2), p.1546-1558

Ort / Verlag

Cham: Springer International Publishing

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Little information is available about biochar’s role in kinetics of ammonia (NH 3 ) 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 NH 3 volatilization from saline sandy soils. Biochar was added in three doses (0, 5 (BC 5 ), and 10 (BC 10 ) ton ha −1 ) and the soil was irrigated to 100% (I 100 ), 80% (I 80 ), and 60% (I 60 ) of plant-available soil water. The experiment was factorial (3 × 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 . BC 5 and BC 10 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 NH 3 -volatilization. Biochar and soil moisture status affected significantly on the kinetics of NH 3 loss and the half-life time. I 100 increased the half-life time by 78.7% in comparison with I 60 . Addition of BC 5 and BC 10 to the soil elevated the half-life time by 13.5 and 35.8% compared to the control. BC 10 and I 100 reduced the NH 3 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 NH 3 in addition to improving the performance of saline sandy soils.