Impact of arbuscular mycorrhizal fungi applications on maize production and soil phosphorus availability

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• 作者：Vincenza Cozzolino ; ^{cozzolino.vincenza@libero.it} ; Vincenzo Di Meo ; Alessandro Piccolo
• 关键词：Phosphorus ; Agriculture ; Soil fertility ; Sustainable production ; G. intraradices ; Commercial inoculation
• 刊名：Journal of Geochemical Exploration
• 出版年：2013
• 出版时间：June, 2013
• 年：2013
• 卷：129
• 期：Complete
• 页码：40-44
• 全文大小：180 K

文摘

We investigated in field experiments whether soil application of a commercial mycorrhizal inoculum (CI) with and without addition of phosphorus (P) fertilizers provided greater maize (Zea mays L.) yields and more soil available P than indigenous fungi alone. A field experiment was established with and without applications of commercial inoculum of arbuscular mycorrhizal fungi (AMF) in combination with three fertilizer rates (NPK = N₂₀₀P₉₀K₁₆₀; NK = N₂₀₀P₀K₁₆₀; and control = N₀P₀K₀). Plant and soil (bulk and rhizosphere soil) samples were collected. Results showed that application of CI, in the NK treatment, resulted in plant growth, grain yield and P uptake similar to that found in treatments that received P fertilizer (NPK). After 40 days, inoculation increased available soil P concentrations, both in the NPK and NK treatments. This indicates that inoculated roots mobilize more P and plants may have uptaken more P from soil. The results suggest that AMF inoculation can be used as a component of integrated nutrient management strategies.