Research Article
Nitrogen Release from Green Manure of Water Hyacinth in Rice Cropping Systems
The United Graduate School of Agricultural Science, Kagoshima University, Korimoto 1-21-24, Kagoshima City 890 0065, Japan
Terumasa Honmura
The United Graduate School of Agricultural Science, Kagoshima University, Korimoto 1-21-24, Kagoshima City 890 0065, Japan
Nobufumi Miyauchi
The United Graduate School of Agricultural Science, Kagoshima University, Korimoto 1-21-24, Kagoshima City 890 0065, Japan