By Professor Peter B. R. Hazell
Booklet by way of Hazell, Professor Peter B. R.
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Additional info for The Green Revolution Reconsidered: The Impact of High-Yielding Rice Varieties in South India (International Food Policy Research Institute)
In addition to an increase in the mechanization of water lifting, the use of power sprayers and power-operated threshers has also expanded. There were, respectively, 925 and 228 such machines in 1982, compared with zero in 1966. A new set of entrepreneurs who own these machines has emerged in the region, and they hire out their services at fixed rates. Land preparation is, with few exceptions, still performed with labor and bullock power. However, there were 529 four-wheel tractors in the study region in 1982, compared with 114 in 1966.
Not surprisingly, they are the villages with the poorest and least reliable supplies of irrigation water (see next section and Chapter 6). Within these villages, half of the 1982/83 sample of paddy cultivators and landless laborers were selected at random for resurvey, and all of the 1982/83 sample of nonpaddy cultivators and nonagriculturalists. The same monthly questionnaire was used as in 1982/83, spanning the period September 1983 to June 1984. In order to obtain information for the complete agricultural year, households were also asked to recall information for July and August when first interviewed in September.
In this section we shall be concerned only with per hectare profitability; the larger issues of changes in total farm production and incomes are taken up in Chapter 3. YIELDS. 1). 5 show that the HYVs were distinctly higher yielding than the improved local varieties when first widely adopted in the early 1970s (about 20 percent higher), but their yields have not increased much since then. Moreover, the yield differential between HYVs and improved local varieties diminished over the years as local research stations incorporated additional features of the HYVs into their own genetic material.
The Green Revolution Reconsidered: The Impact of High-Yielding Rice Varieties in South India (International Food Policy Research Institute) by Professor Peter B. R. Hazell