000			02789nam a22002897a 4500
001			G98640
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040			_aMX-TxCIM
090			_aCIS-7494
100	1		_aSantillano, J. _uWater, Food, Energy, and Innovation for a Sustainable World: ASA, CSSA, and SSSA International Annual Meetings; Florida (USA); 3-6 Nov 2013
245	0	0	_aUse of optical sensors technology for the fertilization of spring wheat (Triticum aestivum l.) in Mexicali, B. C., Mexico
260			_c2013
300			_a1 page
500			_aAbstract only
520			_aIn spite of its importance, wheat production in the valley of Mexicali, B.C., Mexico, could be at risk of disappearing due to the low profitability of this activity. One of the causes of the low profitability of wheat production may be due to farmers could be using more nitrogen (N) fertilizers than required. Furthermore, the N that is not recovered by the crop is lost to the environment, aggravating contamination problems. One advanced strategy, the optical sensor based technology (GreenSeeker?) along with an algorithm, its currently showing efficacy on sustainable fertilizer management worldwide. The objectives of this work were two; first, to generate a dependable yield prediction equation for locally grown wheat and second; to compare wheat yields, fertilizer rates and chemical fertilizers costs, using the sensor based technology, versus the farmer?s conventional fertilization practice. There were established calibration, validation and technology transfer trials from 2009 to 2011. It was obtained a yield prediction equation that proven to be useful in recommending optimal fertilizer rates. Without a yield reduction (P = 0.2713), the sensor based technology fertilization mean rate was 68 kg N ha-1 lower than that applied by farmers following their conventional practice (P = 0.0015). These savings accounted for $ 100 (USD) ha-1 ($ 2,000 per 20 ha field). From these results, it´s concluded that in Mexicali, B.C., Mexico, through the use of optical sensor based technology, it is possible to obtain substantial savings on wheat related fertilizer costs, to contribute to increase profitability for farmers and to reduce environmental impacts by avoiding unnecessary fertilizer application rates in conventional wheat production.
536			_aConservation Agriculture Program
546			_aEnglish
593			_aLucia Segura
594			_aINT1421
595			_aCSC
700	1		_aLopez-Lopez, A., _ecoaut.
700	1		_aRaun, W.R., _ecoaut.
700	1		_aOrtiz-Monasterio, I. _gFormerly Sustainable Intensification Program _gFormerly Integrated Development Program _gFormerly Sustainable Agrifood Systems _8INT1421 _9827
942			_cPRO
999			_c8719 _d8719