Environment & Ecology · Agricultural Pollution and Stubble Burning

With reference to rice stubble burning in India, consider the following statements: I. High silica content in paddy straw reduces its palatability and slows down its natural decomposition. II. The structure of procurement and crop incentives in certain States has contributed to the persistence of paddy cultivation and the resulting residue-management challenge. III. Happy Seeder technology enables direct sowing into standing stubble or loose residues without the prior need to burn the field. Which of the statements given above are correct?