000			02832nam a22003857a 4500
001			G80160
003			MX-TxCIM
005			20211006082150.0
008			121211s ||||f| 0 p|p||0|| |
020			_a971-22-0060-4
040			_aMX-TxCIM
082	0	4	_a95-130356
100	1		_aAli, M.
110	2		_aInternational Rice Research Conference. Los Banos, Laguna (Philippines). 1992
245	0	0	_aEconomic evaluation and farmers' perception of green manure use in rice-based farming systems
260			_c1994
340			_aPrinted
500			_a3 graphs; 12 tables; 14 ref. Appendix. Summary (En) AIBA-SEARCA, College, Laguna 4031 - Philippines
520			_aThe economic feasibility of using green manure (GM) depends upon the relative prices of land, labor, and fertilizer and the relative benefits of employing these resources in other economic ventures. To estimate the economics of GM use and to understand the farm-level constraints to its adoption, a farm survey was conducted in the Central Tarai of Nepal, in southern India, and in northern Philippines. The short-term benefits of using GM were negative in India and Nepal and positive in the Philippines. Green manure users obtained significantly higher yields from nonuser farms. But the discounted long-term benefits were generally small. Green manure may be economical in the long runiof evaluated in absolute terms. However, when alternative returns to land, labor, and capital in GM use were compared with other opportunities (for example, legume production in India and Nepal), the latter gave higher income and was equally beneficial in sustaining resource productivity over time. AV: of seed, lack of irrigation water, and high incorporation costs were the constraints to the adoption of GM. These constraints can be overcome through institutional adjustments once GM becomes economically feasible. Green manure research should concentrate on enhancing the other economic uses of GM crops so that it can generate significant returns in the short run; the long-run benefit will automatically come along
546			_aEnglish
595			_aAC
650	1	0	_aAsia
650	1	0	_aCropping patterns and systems
650	1	7	_aCrops _gAGROVOC _2 _91069
650	1	7	_aFertilizers _gAGROVOC _2 _91111
650	1	0	_aFertilizing
650	1	0	_aGramineae
650	1	0	_aOrganic fertilizers _91740
650	1	0	_aOryza
650	1	0	_aSouth Asia
650	1	0	_aSouth east Asia _91273
700	1		_aNarciso, J.H., _ecoaut.
773	0		_tLadha, J.K.; Garrity,-D.P. (eds.). International Rice Research Inst., Los Banos, Laguna (Philippines). Green manure production systems for Asian ricelands: selected papers from the International Rice Research Conference. Los Banos, Laguna (Philippines). IRRI. 1994. p. 173-195. Received Apr 1995. (UPLB Acc. no. 119007)
942			_cREP
999			_c5681 _d5681