Kerala produces 97% of the national output of black pepper and accounts for 85% of the natural rubber in the country. Coconut, tea, coffee, cashew, and spices—including cardamom, vanilla, cinnamon, and nutmeg are the main agricultural products. 80% of India's export quality cashew kernels are prepared in Kollam. The key agricultural staple is rice, with varieties grown in extensive paddy fields. Home gardens made up a significant portion of the agricultural sector. Related animal husbandry is touted by proponents as a means of alleviating rural poverty and unemployment among women, the marginalised, and the landless. The state government promotes these activities via educational campaigns and the development of new cattle breeds such as the Sunandini.