01426nam a2200205Ia 4500 CTU_16670 210402s9999 xx 000 0 und d 632 F218/N.120 FAO FAO plant production and protection paper N.120 Weed management for developing countries FAO Rome FAO 1994 The book provides background on the nature of weeds and their comprehensive effects on crops; on the main approaches to weed management, whether cultural, physical, biological or chemical, and on the economics of different systems and their intergration. A number of the most important species or genera of weeds are considered individually for their biology and control. The emphasis, so far as possible, is on the exploitation of non-chemical methods, most suitable to low-input agriculture. It is not suggested, or desirable, that use of herbicides should become as dominant as it has in industrialised countires, but they can offer technical solutions to various problems and, with approciate care, and integration with other methods, they can be fully economic, and socially and environmentally acceptable at the small farm level. herbicides,plants, protection of,weeds - control Nguyễn Quang Điền, 970530 Trung tâm Học liệu Trường Đại học Cần Thơ