000			01669nab a22003617a 4500
999			_c12659 _d12659
001			G40958
003			MX-TxCIM
005			20211006071627.0
008			210409s1991 pk |||p|op||| 00| 0 eng d
040			_aMX-TxCIM
041	0		_aeng
043			_aPK
072		0	_aF04
072		0	_aF06 A50
090			_aCIS-1504
100	1		_aByerlee, D. _9455
245	1	0	_aFertilizer response in irrigated maize in the Swat Valley : _ba synthesis of five years of on-farm research
260			_aPakistan : _bPakistan Society of Agricultural Economics, _c1991.
340			_aPrinted
500			_aPeer review
520			_aThis paper has demonstrated an integrated and interdisciplinary approach to establishing appropriate fertilizer recommendations for small farmers. The series of surveys and experiments over a five year period in Swat Yalley indicate that the optimum dose of N is around 100 Kg per hectare and farmers are approaching that leve. Capital scarcity appears to be the main factor limiting the use of N in this area. The overall response to phosphorus in maize in this area is small.
546			_aText in English
591			_aR100ECO|EP|EconomicsPubs|3|SEP archives 2
595			_aCSC
650		7	_aFertilizer application _91110 _2AGROVOC
650		7	_91314 _aZea mays _2AGROVOC
650		7	_92912 _aNitrogen _2AGROVOC
651		7	_2AGROVOC _94252 _aPakistan
700			_aKhan, K. _97548
773	0		_tPakistan Agricultural Development Review _n625141 _gv. 1, no. 1, p. 23-38 _dPakistan : Pakistan Society of Agricultural Economics, 1991.
856	4		_uhttps://hdl.handle.net/20.500.12665/463 _yAccess only for CIMMYT Staff
942			_cJA _2ddc _n0