Publication Date

1985

Location

Kyoto Japan

Description

In a pot experiment with a hydromorph grassland soil enriched with organic matter containing tagged N and sown with Italian ryegrass N-mineralization and uptake with increasmg K fertilization were investigated. The N-mineralization and the mtnficatlon were promoted with increasing K fertilization. Because the K content of the plant was high enough to guarantee a healthy growth, the higher N uptake, a��d especi��lly the m��reased uptake of mineralized N from the + added organic matter, was attnbuted to the higher content of mmeral N m the sod and to a synergic interaction between K and NO3

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Effect of the K Fertilization on the N-Mineralization in a Grassland Soil and on the N-Uptake by Italian Ryegrass

Kyoto Japan

In a pot experiment with a hydromorph grassland soil enriched with organic matter containing tagged N and sown with Italian ryegrass N-mineralization and uptake with increasmg K fertilization were investigated. The N-mineralization and the mtnficatlon were promoted with increasing K fertilization. Because the K content of the plant was high enough to guarantee a healthy growth, the higher N uptake, a��d especi��lly the m��reased uptake of mineralized N from the + added organic matter, was attnbuted to the higher content of mmeral N m the sod and to a synergic interaction between K and NO3