Irrigation and Fertilization
Through the Bank of Bhutan, the government helped
irrigation projects in south-central Bhutan. By 1986 some
kilometers of new irrigation channels had been
another 395 kilometers of old channels had been repaired.
Irrigation, however, was of only limited applicability
the terrain. More attention was needed for rainfed crops,
potatoes, wheat, and corn, than for rice and cash crops in
Fertilizer use was limited. Although nitrogenous
were used at a rate of 100 tons a year and phosphate and
fertilizers were used in indeterminant amounts throughout
1980s, they were not a major agricultural factor.
Data as of September 1991