Salinity Management through Cut-soiler Preferential Sub-surface Drainage (PSSD) Improve Pearl Millet Growth and Yield under Saline Irrigation
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Authors
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Neha
ICAR-Central Soil Salinity Research Institute, Karnal-132 001, Haryana, India
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Gajender Yadav
ICAR-Central Soil Salinity Research Institute, Karnal-132 001, Haryana, India
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Rajender Kumar Yadav
ICAR-Central Soil Salinity Research Institute, Karnal-132 001, Haryana, India
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Satyender Kumar
ICAR-Central Soil Salinity Research Institute, Karnal-132 001, Haryana, India
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Ashwani Kumar
ICAR-Central Soil Salinity Research Institute, Karnal-132 001, Haryana, India
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Meena Sehwag
CCS Haryana Agricultural University, Hisar-125004, Haryana, India
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Govind Prasad
ICAR-Central Soil Salinity Research Institute, Karnal-132 001, Haryana, India
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Vivekanand
ICAR-Central Soil Salinity Research Institute, Karnal-132 001, Haryana, India
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Junya Onishi
Japan International Research Center for Agricultural Sciences (JIRCAS), Ohwasi, Tshukuba, Ibaraki, 305-8686, Japan
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Toshihiko Anzai
Japan International Research Center for Agricultural Sciences (JIRCAS), Ohwasi, Tshukuba, Ibaraki, 305-8686, Japan
Keywords:
Cut-soiler, Preferential Sub-surface Drainage (PSSD), Pearl millet, Salinity, IrrigationAbstract
Salinity is a major constraint to crop production, especially in the arid and semi-arid areas of the world. In India, persistent use of poor-quality water for irrigation is one of the main reasons for the increase in salinity- affected areas. This study evaluated the effectiveness of Cut-Soiler Preferential Sub-surface Drainage (PSSD) technique for managing dryland salinity with the use of saline groundwater for pearl millet production for two successive years (2019-2020). The experiment was laid out in a double spilt plot design with two replicates where simulated Cut-soiler PSSD constructed in semi controlled lysimeter using two soil types (saline sandy loam and heavy texture soil) and three levels of saline water (4, 8, and 12 dS m-1). Results showed that the Cut- soiler PSSD reduced ~49.19% soil salinity after two successive pearl millet crops. The leaf weight ratio, leaf area duration, specific leaf area, specific leaf weight, absolute growth rate, dry matter efficiency and unit area efficiency increased significantly under Cut-soiler PSSD. Cut-soiler constructed PSSD salt removal resulted in better plant growth, grain and biological yield. The pearl millet grain yield increased by 22.87 and 24.13% and biological yield by 11.15 and 12.31% in 2019 and 2020, respectively under Cut-soiler PSSD. Cut-soiler PSSD was found to reduce salt accumulation under saline water irrigation. Therefore, Cut-soiler PSSD could be a viable technique for salinity management and higher crop production with the use of saline groundwater in salt affected regions.
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