ISBN: 9787511647580 - 我国玉米生产节本增效问题研究 (1 resultados)

paperback. Condición: New. Language:Chinese.Paperback. Pub Date: 2020-08-01 Pages: 153 Publisher: China Agricultural Science and Technology Press The country is based on the people. the people rely on food as the sky. and food is the source of food.?As one of the important components of the national security strategy. paying attention to food production should not be slack or relaxed at any time.?As one of the three major food varieties in my country. corn not only has an important impact on national food security. but.…