Problem in harvesting
1. Problems in harvesting occur especially when it coincides with heavy rain or cyclones. The crop may be submerged and the seeds may start germinating on the plant itself. These problems are common in monsoon season crop especially rice in south India and can be overcome by growing dormant varieties.
When the economics product is underground, harvesting is difficult if the soil dries due to lack of rain. Running blade harrows may help to some extent to loosen the soil. Groundnut is harvested by running heavy blade harrows (Pedda guntaka) with two pairs of animals. Tractor drawn sweep cultivators (with inverted `V` shaped blades) are also used to harvest groundnut.