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Effect of organic and inorganic amendments on amelioration of sodic soil and sustaining rice (Oryza sativa)-wheat (Triticum aestivum) productivity

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Title Effect of organic and inorganic amendments on amelioration of sodic soil and sustaining rice (Oryza sativa)-wheat (Triticum aestivum) productivity
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Creator YASH PAL SINGH
VINAY K MISHRA
HIMANSHU DIXIT4
RAVINDRA K GUPTA5
 
Subject Crop productivity, Nutrient contents, Organic and inorganic amendments, Sodic soil amelioration
 
Description Not Available
Management of degradation of sodic lands in arid and semi-arid regions is a global concern. Amelioration of these soils through chemical amendments like gypsum or phosphogypsum is a costly affair for resource poor farmers
having sodic lands. Combined use of municipal solid waste (MSW) compost with chemical amendments can provide a realistic solution for ameliorating sodic soils and sustaining crop productivity. A field experiment was conducted
during 2015 to 2016 at Shivri, Lucknow on highly sodic soil [pH 9.8, exchangeable sodium percentage (ESP) 78, organic carbon (OC) 1.30 g/kg and gypsum requirement (GR) 15.2 t/ha] to evaluate the influence of organic and
inorganic amendments on amelioration of sodic soils and sustaining productivity of rice (Oryza sativa L.)-wheat (Triticum aestivum L.) cropping system. The treatments consisted of T1: Gypsum (G) @ 50%GR, T2: Phosphogypsum
(PG) @ 50%GR, T3: G @25%GR + on-farm MSW compost @10 t/ha, T4: PG @25%GR+ on-farm MSW compost @10 t/ha, T5: G @12.5%GR + on-farm MSW compost @10 t/ha + pressmud (PM) @10 t/ha, T6: PG @12.5%GR+
on-farm MSW compost @ 10 t/ha + PM @ 10 t/ha, T7: G @ 25%GR + industrial processed (IP) MSW compost @10 t/ha and T8: PG @ 25%GR + IP MSW compost @10 t/ha. The results indicated that, application of reduced dose
(25% of GR) of gypsum (T3) in combination with on-farm MSW compost @10 t/ha reduced about 14% ESP and increased 11% soil bulk density, 54% infiltration rate, 10% soil organic carbon content, and 13% available N over the
recommended practice (T1). Productivity of rice and wheat crops enhanced to the tune of 4 and 12 %, respectively and thus farmers can save about ` 29444.00/ha on account of reducing the quantity of gypsum or phosphogypsum
without any significant yield loss and the saved amount can be utilized to bring more area under reclamation. The maximum N content in rice and wheat grain was recorded with treatment T4.
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Date 2019-10-19T07:37:55Z
2019-10-19T07:37:55Z
2018-09-12
 
Type Research Paper
 
Identifier Not Available
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http://krishi.icar.gov.in/jspui/handle/123456789/23626
 
Language English
 
Relation Not Available;
 
Publisher Not Available