Possible utilization of water hyacinth (eichhornia crassipes (mart.) solms), an aquatic weed, as green manure in vegetables cropping systems

JAPANESE JOURNAL OF TROPICAL AGRICULTURE 47 (1), 27-33, 2003

Authors: DW WIDJAJANTO, T HONMURA, N MIYAUCHI

Nitrogen dynamics in komatsuna (brassica rapa) cultivation due to incorporation of water hyacinth residues into the system

PAK. J. BIOL. SCI 6 (1), 10-15, 2003

Authors: DW Widjajanto, T Honmura, N Miyauchi

Nitrogen dynamics in Ко mats una (brassica rapa) cultivation due to incorporation of water hyacinth residues into the system

Authors: DW Widjajanto, T Honmura, N Miyauchi

Dynamics of nitrogen and carbon release from water hyacinth residues incoporated intosoil-crop systems

KOGOSHIMA UNIVERSITY, JAPAN, 2003

Authors: DW Widjajanto

Nitrogen release from green manure of water hyacinth in rice cropping systems

PAKISTAN JOURNAL OF BIOLOGICAL SCIENCES (PAKISTAN), 2002

Authors: DW Widjajanto, T Honmura, N Miyauchi

Organic farming and its prospect in indonesia

BULL. FAC. AGRIC. KAGOSHIMA UNIV 52 (2), 57-62, 2002

Authors: DW Widjayanto, N Miyauchi

17-5 the release of n from water hyacinth incorporated into soil-crop systems

日本土壌肥料学会講演要旨集 48, 108, 2002

Authors: DW Widjajanto, T Honmura, N Miyauchi

Studies on the release of n from water hyacinth incorporated into soil-crop systems using^< 15> n-labeling techniques

PAK. J. BIOL. SCI. 4, 1075-1077, 2001

Authors: DW Widjajanto

Pengaruh kompos yang dibuat dengan bantuan mikroorganisme (em) terhadap pertumbuhan dan produksi hijauan jagung

FAKULTAS TEKNIK, 1999

Authors: RT Mulatsih, W Slamet, A Darmawati, DW Widjajanto, F Kusmiyati

The accurate determination of nitrogen-15 with an emission spectrometer.

PAKISTAN JOURNAL OF BIOLOGICAL SCIENCES 4 (9), PP: 3-PP: 3, 1999

Authors: DW Widjajanto, D Barrachlough, JM Bremner, E Bremner, C van Kessel, ...