Wayan Sabe Ardjasa*1, Ho Ando* 2and Makoto Kimura*3
*1Research and Assessment Installation for Agriculture
Technology Taman Bogo, AARD, Indonesia.
*2Faculty of Agriculture, Yamagata University, Wakabamachi,
Tsuruoka, 997-8555, Japan.
*3School of Agriculture Sciences, Nagoya University,
Furocho, Chikusa, Nagoya 464-8601, Japan.
Abstract
From the viewpoints of nutrition of the product (calories
and protein production) and income, cassava (Manihot esculenta Crantz)
based cropping pattern was clarified. Five cropping patterns were compared
for 6 years including conventional cropping pattern and introduced cropping
patterns and with terraced or without terraced condition. The results obtained
are as follows: 1.The relatively higher income and calorie production was
obtained in the cropping pattern which consisted (upland rice (Oryza sativa
L.) + corn (Zea mays L.) + cassava)/ peanut (Arachis hypogaea L.) /cowpea
(Vigna sinensis Endl.)(first/second/ third crop seasons, respectively).
From the viewpoints of income and protein production, (soybean (Glycine
max Merr.) + corn)/(sweet potato (Ipomoea batatas Lam.) + corn)/cowpea
pattern was better among cropping patterns. These two patterns were introduced
patterns. Many of the physico-chemical properties of soil indicated that
terracing the fields is a sustainable management for soil fertility, although
the field management under the terraced conditions was performed only for
two or three years in total 6-years cultivation.
Key words: cassava (Manihot esculenta Crantz), calorie
production, cropping pattern, protein production, terrace