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发表于 2025-3-23 11:46:51 | 显示全部楼层
Aaldert Hendrik Wapstra,Josef H. E. Mattauchust alive). The vast majority of the world’s rice-eaters live in monsoon Asia, in the countries that lie in an arc from Pakistan on the west, through South and South-East Asia to China and Japan. Within South Asia, rice is the basic foodstuff of Bangladesh and Sri Lanka and of a majority of the vast
发表于 2025-3-23 16:26:24 | 显示全部楼层
enefits of inter-country comparison between Sri Lanka and India. In Sri Lanka it was important that the area should be in the non-deltaic dry zone lowlands where, rather than in the wet zone, the Green Revolution in rice-growing had taken root. Since we wanted to compare the agrarian impact of diffe
发表于 2025-3-23 20:14:38 | 显示全部楼层
https://doi.org/10.1007/978-3-322-93989-051 in 1973 (1 ton = 1016 kg). After accounting for seed and wastage, the net domestic supply was 790, 800 rice tons in 1972 and 728, 846 in 1973. However, the District-level data from MOAL for 1972 (1973a) sums to 987,288 tons if a standard paddy/rice conversion of 67 per cent is used (as in PMB, 19
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发表于 2025-3-24 15:05:23 | 显示全部楼层
https://doi.org/10.1007/978-3-322-95013-0cal fertilisers, improved cultural practices and the mechanisation of agricultural operations. Reports from agricultural research stations claim that an optimum package of these inputs leads to substantial increases in rice yields. More recently, following the oil crisis and subsequent fertilizer sh
发表于 2025-3-24 19:06:57 | 显示全部楼层
https://doi.org/10.1007/978-1-84800-001-8ent bus services on the main road only half a mile away (for general village statistics see chapter 15). Proximity to the town helps to account for some important characteristics: early electrification and installation of pump-sets (in 1951); intensive use of organic manure of urban origin, which —
发表于 2025-3-24 23:33:48 | 显示全部楼层
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