01088nam a2200217Ia 4500 CTU_153075 210402s9999 xx 000 0 und d 53.85 631.451 W853 Wolf, Benjamin Sustainable soils : The place of organic matter in sustaining soils and their productivity Benjamin Wolf, George H. Snyder. New York Food Products Press 2003 This book shows the importance of organic matter in maintaining crop production. The addition of organic matter to soil is covered in great detail. This book is unique in that it draws on practical farming operations to illustrate many of the points discussed. The senior author has had almost 60 years of experience in solving production problems—many of which have been related to insufficient organic matter. Humus,Conservation tillage,Đất mùn,Bảo tồn đất trồng Trọng Hải Trung tâm Học liệu Trường Đại học Cần Thơ