Login

Proceedings

Find matching any: Reset
Add filter to result:
Precision Agriculture Practices for Sustaining Productivity and Profitability in Reclaimed Sodic Soils in Northwest India
G. Singh
Central Soil Salinity Research Institute, Karnal, India

Indo-gangetic alluvial plain comprising of Punjab, Haryana and Uttar Pradesh states is a food bowl of India. These states contribute significant quantity of food grains particularly rice and wheat to the central pool. However, in the recent past, the productivity of the dominant rice-wheat cropping system in reclaimed alkali (sodic) soils is either stagnating or decreasing with the associated problems of declining water table levels, decreasing levels of organic matter in the soil, nutrient imbalance, emerging deficiencies of secondary and micronutrients and extensive tillage and residue burning practices. This calls for upgrading of water, nutrients and energy use efficiency through better management of land and water resources to sustain agriculture in this food bowl of the country. In last about three years, several long term field experiments have been set up at the experimental farm of CSSRI, Karnal to develop conservation agriculture and precision farming techniques to increase use efficiency of water, nutrients and energy. In one of the experiments laid out in strip plot design conventional tillage is being compared with reduced tillage, no-tillage, bed planting, brown manuring with and without residue incorporation and keeping residue on the soil surface in rice-wheat cropping sequence. The maximum yield of Basmati rice (CSR 30) in this experiment was obtained in unpuddled treatment (4.0 t/ha) followed by conventional puddled transplanted rice (3.69 t/ha). Direct seeded rice (DSR) with Sesbania co-culture as a brown manuring yielded 3.65 t/ha compared to 3.24 t/ha in DSR without brown manuring practice. The rice transplanted on raised beds yielded 2.95 t/ha. The trend in water saving followed the order: DSR plus Sesbania (43.56%) > DSR (39.68%) and raised bed transplanted rice (24.60%) Table 1. 

G. Singh    Oral    2008