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铁磷在红壤无机磷中占有很大的比例,当施用可溶性磷肥于红壤中后,其中很多磷向铁磷转化。很多学者认为铁磷在红壤旱地中经干燥、脱水、老化后对旱地作物的有效性极低。关于树木能否利用铁磷的问题,近几年来有少数学者对此提出一些新的观点,如Gilmore提出铁磷是短叶松有效的磷源。我们在油茶长期施肥试验中发现,磷肥在施用8年后仍有效,因而曾推断过铁磷可能是油茶有效的磷源。为了确切地了
Iron and phosphorus in red soil inorganic phosphorus occupy a large proportion, when the application of soluble phosphate fertilizer in red soil, many of which phosphorus to iron and phosphorus conversion. Many scholars believe that iron and phosphorus in dry red soils dry, dehydrated, the effectiveness of the crop on the drylands after the very low. In recent years, a few scholars have put forward some new ideas about whether trees can utilize iron-phosphorus. For example, Gilmore proposed that iron-phosphorus is an effective phosphorous source for short-leaved trees. We found in the long-term fertilization experiment of Camellia oleifera, which was still effective after 8 years of application. Therefore, it was concluded that ferropotin may be the effective phosphorus source of Camellia oleifera. To be exact