00816nam a2200193Ia 4500 CTU_181579 210402s9999 xx 000 0 und d 631.81 V305 Viện Khoa học và Nông nghiệp Việt Nam Hội thảo quốc gia về nâng cao hiệu quả quản lý và sử dụng phân bón tại Việt Nam = National workshop on improving the efficiency of management and use of fertilizers in Vietnam Viện Khoa học và Nông nghiệp Việt Nam Hà Nội Nông nghiệp 2012 Fertilizers,Quản lý và sử dụng phân bón management and use Trung tâm Học liệu Trường Đại học Cần Thơ