摘要
W002795对英国4种农田变异力的认知[会,英]/Blackmore,S.…//Proceedings of theFourth International Conference on PrecisionAgriculture,St.Paul,Minnesota,USA,19～22July 1998.Part A and Part B/Roberr,P.C.….-Madison,USA:American Society of Agronomy,1999.-3～18.-ISBN 0-89118-140-7[WBTA,1999,16(6),4781]W002796 秋-冬性谷类作物生产预测[刊,意]/Corticelli,C.//Informatore Agrario.-1999,55(29).-46～47(WBTA,1999,16(6),4782]
