Which among the following suggestions would eliminate the need for farmers in North India to burn their paddy crop stubble?
1. Use of manual labour for harvesting the paddy crop
2. Use of seeder machines for wheat-seed drilling function
3. Increasing the silica content of rice straw by conventional methods of plant breeding
Which of the above statement(s) is/are correct?
Use of machines for harvesting has serious implications for crop residue management at the farm level. The combine harvester cuts the crop well above the ground, leaving behind substantial amount of stubble on the field. The machine leaves the residues in such a state that it is difficult to collect them manually.
“The government has no one to blame but itself, since it has not been able to supply affordable seeder machinery in sufficient numbers to eliminate the need to remove the straw.”
Lack of suitable machinery is a major constraint to direct-drilling wheat seeds into combine-harvested rice residues due to the heavy straw load, and the presence of loose tough straw deposited by the harvester. Seeder machines combines two processes – stubble mulching and seed-drilling functions.
Burning of wheat residue is not necessary for the farmers because of the availability of technology and its higher economic value as dry fodder. Rice straw, however, is not used as fodder as it is found to be non-palatable to animals due to its high silica content