000			02901nam a22003977i 4500
001			B-12613
003			CO-BoFNCP
007			t||
008			090929s2008 my a f z eng d
040			_aCO-BoFNCP _bspa _cCO-BoFNCP _erda
041			_aeng
043			_amy
084			_aA-
100	1		_aChayawat, Nakharin, _eautor. _4aut _941387
245	0	2	_aA reviwe of 15 years of oil palm irrigation research in Southern Thailand.
264		4	_c©2008
300			_apáginas 537-546 : _bTablas, gráficos.
336			_atexto _btxt _2rdacontent
337			_asin mediación _bn _2rdamedia
338			_avolumen _bnc _2rdacarrier
504			_aIncluye referencias bibliográficas.
520			_aThe climate in Southern Thailand has a regular dry season, with three to four months of soil water deficit, and Univanich started commercial irrigation of oil palms in the late 1980s. Research trials have compared irrigation methods, quiantities of water applied, and interactions with fertilisers, and the responses of different breeding materials. A comparison of four irrigation methods (sprinkler, microsprayer, furrow and drip) showed no significant differences in yield responses, though there was a suggestion that drip might be superior to the other methods, and drip was also preferred on grounds of operating costs and ease of management. Some practical aspects of drip installation are discussed in the paper. There were significant irrigation x fertiliser interactions, and with increased fertiliser inputs, teh response to irrigation was more or less linear, reaching 10 tonnes FFB per hectare per year at 6.4 mm rainfall equivalent (450 litres/palm/day). The yield response to irrigation based on a calculated water deficit depended on the severity of the dry season. Response in any one year was related to teh water deficit in the first quarter of the year, and also to that two years earlier; a multiple regression explained 1 percent of the year-to-year variation in yield response. Results from progeny trials duplicated with and without irrigation show that some progenies appeared to be more sensitive to drought, and gave larger responses to irrigation, that others. This could give breeders the option of selecting drought tolerant material for planting in areas where irrigation is not possible, or irrigation-responsive material for sites where irrigation is intended.
650		0	_aDeficiencia hídrica _931596.
650		0	_aElaeis guineensis. _99057
650		0	_aFertilización _932429.
650		0	_aIrrigación _933268.
650		0	_aPalma de aceite _937678.
651		0	_925967 _aTailandia.
700	1		_aClendon, J. H. _941389.
700	1		_aCorley, R. H. V. _937547.
700	1		_aPalat, Tittinutchanon _941388.
773	0		_aThe Planter (Malasia) _gv. 84, no. 989 (2008), p. 537-546 _wA- _x0126-575x
942			_2z _c1
999			_c26585 _d26585
999			_z1