Publications by authors named "L Muralikrishnan"
Article Synopsis
- Nitrogen (N) is a crucial nutrient for plant growth and is the most commonly used fertilizer in agriculture, but only about 50% of applied N is effectively used by crops.
- Excess nitrogen is lost through processes like volatilization, runoff, leaching, and denitrification, which harms the environment and reduces farmers' returns.
- Improving Nitrogen Use Efficiency (NUE) through better management practices and technological advancements is essential for reducing environmental impacts and meeting agricultural demands sustainably.
Canopy covers can be measured using destructive (visual) and non-destructive methods (spectral indices, photogrammetry, visual assessment, and quantum sensor). The precision of crop cover estimation, however, is dependent on the selection of appropriate methods. Studies were conducted at the Indian Grassland and Fodder Research Institute, Jhansi to compare the forage crops canopy cover estimated using photogrammetry software (Canopeo and SamplePoint) and visual assessments.
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- Field experiments evaluated eight integrated crop management (ICM) modules over five years in a maize-wheat rotation, showing significant boosts in maize grain yield with CA-based ICM methods compared to conventional techniques.
- Results indicated that while wheat yields remained statistically similar across methods, overall system yields for maize equivalents were higher in the CA-based approaches that retained residues.
- The study concluded that adopting CA-based ICM can enhance crop sustainability, improve farm profits, conserve water, and positively affect soil properties in north-western plains.