Cultivation of sugarcane from the root stock of the cane which has been cut is called

1. Ginning
2. Ratooning
3. Clone planting
4. Retting

Cotton plant is vulnerable to attack by diseases like

1. green leaf hopper
2. stripe rust
3. boll worms
4. rust

The groundnut kernels contain

1. 40 - 50% oil
2. no oil
3. 20 - 30% oil
4. 10 - 15% oil

Sugarcane can grow well in the alluvial soil. It should be rich in

1. Nitrogen
2. Calcium
3. Phosphorus
4. All the above