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大量施优质有机肥作基肥对补充微量元素的不足能起缓冲作用。M.R.(1970),V.G.(1974),M.P.(1975),M.P.(1976),M.等(1976),G.等(1977),K.V.(1977)和M.等(1978)报道过:某些可提取的微量元素的增加与土壤中有机物含量的增加有关。这些报道似乎不适用于甘蔗集约种植的土壤。本文介绍了1977-78年至1979-80年期间Anakapalle甘蔗研究站,对在相同氮基础上,连续施农家肥或硫酸铵与不施肥相比较,土壤和甘蔗中微量
A large number of high-quality organic fertilizer as a base fertilizer to supplement the lack of trace elements can play a buffer role. It has been reported in the literature that MR (1970), VG (1974), MP (1975), MP (1976), M. et al. (1976), G. et al. (1977), KV (1977) and M. et al. The increase of extractable trace elements is related to the increase of organic content in soil. These reports do not seem to apply to the soil where sugarcane is grown intensively. This article describes the Anakapalle sugar cane research station from 1977 to 1978 and 1979 to 1980, comparing the application of manure or ammonium sulfate on the same nitrogen base with no fertilization compared with soil and sugar cane