Published May 1, 2005
Main Article Content
John Bako Baon
Indonesian Coffee and Cocoa Research Institute
Indonesian Coffee and Cocoa Research Institute
Double cropping of coffee with organic matter source plants is thought to increase organic matter content of soil. This study examined the effect of double cropping of coffee and organic matter source plants on soil organic matter content and yield of coffee plants. Arabica coffee trees in Andungsari Experimental Station (Bondowoso district), 1400 m asl. and climate type C; and Robusta coffee trees in Sumberasin Experimental Station (Malang district), 550 m asl. and climate type C, were used as experimental sites of this study which lasted for five years. Organic matter source plants consisted of some species that can be routinedly pruned and surface applied to coffee soil, and other creeping species that not being pruned, however the organic matter source derived from their fallen leaves. Application of farm manure and control (neither organic matter source plants nor farm yard manure) were used as comparison treatments. Results indicate that Ramayana (Cassia spectabilis) had vigorus growth resulting in greater biomass production compared to lamtoro (Leucaena leucocephala), mogania (Moghania macrophylla) and even kaliandra (Calyandra calothyrsus) which produced greater biomass among organic matter source plants grown in Arabica coffee farming. Double cropping of coffee with organic matter source plants did not affect soil organic matter content of Arabica and Robusta coffee farmings, though farm yard manure application increased soil organic matter content and soil bulk density, especially of Robusta coffee farm. Soil moisture content examined in dry season was not affected by double cropping. In contrary, Robusta coffee farm applied with farm yard manure had higher soil moisture content. At Arabica coffee farm, double cropping did not influence green coffee yield, on the other hand Ramayana reduced green coffee yield of Robusta coffee while farm yard manure increased the yield.Keywords : Coffeea arabica, Coffeea canephora, organic matter, soil moisture, double cropping, biomass producing plants.
How to Cite
Bako Baon, J., & Wibawa, A. (2005). Organic matter and soil moisture content and double cropping with organic matter sourceplants. Pelita Perkebunan (a Coffee and Cocoa Research Journal), 21(1). https://doi.org/10.22302/iccri.jur.pelitaperkebunan.v21i1.124
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