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Relationship between K/Ca Ratios in the Soil Solution with the Dynamic of K in Ultisol and Vertisol of Upland Area
(IPB (Bogor Agricultural University), 2004)
The objectives of this experiment were: (I) to study the effect of K and Ca fertilization on the dynamic of K, (2) to study the relationship between the dynamic of K in the soils with corn growth, and (3) to determine the ...
Effect of Interlayer Caution Valence on Formation and Chemical Characteristics of Aluminumhydroxy-Vermuculite
(IPB (Bogor Agricultural University), 2005)
Aluminumhydroxy-smectite (AHS), known also as pillared clay, has some specific c...haracteristics such as: wide specific surface area, high basal spacing, and stable at significant high temperature. The AHS was produced ...
Use of volcanic sands as a natural fertilizer: increasing release of nutrients
(IPB (Bogor Agricultural University), 2003)
Volcanic sands, that contain relatively high content of dark minerals. can be used as a natural fertilizer. Unfortunately, the amount of the nutrients from this material available for the plant growth is very low. To ...