01095nam a2200193Ia 4500 CTU_33320 210402s9999 xx 000 0 und d 630 C571 CIGR Handbook of agricultural engineering H. N. Van Lier, L. S. Pereira, F. R. Steiner edited USA ASAE 1999 Volume 1 of this CIGR Handbook attempts to address this challenge by first focusing on the changing role of agriculture within society and within society and within the rural countryside. To day`s and future farming systems have to face the challenge of finding a balance between further development in terms of increased volumes and productivity, diversification in food, and improved qualities of food on the one hand and the establishment of farming methods that safeguard the environment, the natural resources, and the ecosystem, nature, and landscape on the other. Agricultural engineering Handbook Thom, 991007 Trung tâm Học liệu Trường Đại học Cần Thơ