Phonska Fertilizer Leaching and Its Effect on Spinach Growth and Productivity (Amaranthus tricolor. L) on Latosol with Different Clay Content
'IImal Tallah dan Linglamgan, Vol. 7 No.1, April 2005: 22-26
155N 1410-7333
POTENSI PENCUCIAN PUPUK MAJEMUK PHONSKA SERTA PENGARUHNYA
TERHADAP PERTUMBUHAN DAN PRODUKSI BAYAM (Amaranthus
tricolor. L) PADA LATOSOL DENGAN KANDUNGAN LIAT YANG BERBEDA
Phonska Fertilizer Leaching and Its Effect on Spinach Growth and
Productivity (Amaranthus tricolor. L) on Latosol with Different Clay Content
Ima Sandra Primantil, Oteng Haridjaja 2
lAlumnus Departemen Tanah, Fakultas Pertanian, Institut Pertanian Bogor,
2Departemen Tanah, Fakultas Pertanian, Institut Pertanian Bogor,
Jl. Meranti, Kampus IPB Darmaga, Bogor 16680
ABSTRACT
Sufficient available water in soil is very essential for plant growth, not only as a nutrient solvent but also to maintain
optimal turgor pressure. Occasionally, additional water supply from irrigation is necessary to achieve optimal soil water
,:ondition. The aim of this research was to study leaching of several nutrients correlated to the growth and productivity of
spinach. PHONSKA fertilizer as a source of nutrients was applied to Latosols Darmaga having different clay content. The
treatments were subjected to different level of water supply resulting in different soil moisture regime. Factorial completely
randomized design was used for the experiment; the first factor was clay content. Clay content was differentiated between 81
% clay (very fine clayey) and 51 % clay (fine clayey). The secondfactor was level of water supply (100, 120, 140 and 160 % of
water holding capacity).
The result of this research showed that the interaction between clay content and amount of water supplied significantly
influenced rate of N, P and K leaching, the sum of leached water and also produced plant biomass (P
155N 1410-7333
POTENSI PENCUCIAN PUPUK MAJEMUK PHONSKA SERTA PENGARUHNYA
TERHADAP PERTUMBUHAN DAN PRODUKSI BAYAM (Amaranthus
tricolor. L) PADA LATOSOL DENGAN KANDUNGAN LIAT YANG BERBEDA
Phonska Fertilizer Leaching and Its Effect on Spinach Growth and
Productivity (Amaranthus tricolor. L) on Latosol with Different Clay Content
Ima Sandra Primantil, Oteng Haridjaja 2
lAlumnus Departemen Tanah, Fakultas Pertanian, Institut Pertanian Bogor,
2Departemen Tanah, Fakultas Pertanian, Institut Pertanian Bogor,
Jl. Meranti, Kampus IPB Darmaga, Bogor 16680
ABSTRACT
Sufficient available water in soil is very essential for plant growth, not only as a nutrient solvent but also to maintain
optimal turgor pressure. Occasionally, additional water supply from irrigation is necessary to achieve optimal soil water
,:ondition. The aim of this research was to study leaching of several nutrients correlated to the growth and productivity of
spinach. PHONSKA fertilizer as a source of nutrients was applied to Latosols Darmaga having different clay content. The
treatments were subjected to different level of water supply resulting in different soil moisture regime. Factorial completely
randomized design was used for the experiment; the first factor was clay content. Clay content was differentiated between 81
% clay (very fine clayey) and 51 % clay (fine clayey). The secondfactor was level of water supply (100, 120, 140 and 160 % of
water holding capacity).
The result of this research showed that the interaction between clay content and amount of water supplied significantly
influenced rate of N, P and K leaching, the sum of leached water and also produced plant biomass (P