000			02640nam a22003137a 4500
003			OSt
005			20250717140557.0
008			250715b |||||||| |||| 00| 0 eng d
040			_aTUPM _bEnglish _cTUPM _dTUPM _erda
050			_aBTH GF 41 _bF56 2025
100			_aFlores, Herminio V III. _eauthor
245			_aAssessment of organophosphate pesticide residue in rice soil and farmers' practices: _btowards sustainable rice farming in conception, tarlac/ _cHermonio V. Flores III, Erico S. Ladra, Christopher John O. Lalis, and John Joshua P. Mandal.--
250			_aBTH GF 41 _bF56 2025
300			_aviii, 113pages: _c29cm.
336			_2rdacontent
337			_2rdamedia
338			_2rdacarrier
500			_aBachelor's thesis
502			_aCollege Of Science.-- _bBachelor of science in environmental science: _cTechnological University of the Philippines, _d2025.
504			_aIncludes bibliographic references and index.
520			_aThis study examines organophosphate pesticide residues in rice soils and farmers' practices in three barangays of Concepcion, Tarlac_Talimundoc San Miguel, Pitabunan, and Sto. Niño over three months. It assesses soil properties, pesticide practices, residue levels, their correlations, and sustainable recommendations. Soil samples, tested via Gas Chromatography-Mass Spectrometry, showed undetectable residues (<0.01 mg/kg) pre- and post-harvest, despite widespread Brodan and Malathion use, likely due to leaching in sandy loam soils (Talimundoc San Miguel, Sto. Niño) and loam (Pitabunan), and degradation at near-neutral pH (6.38–6.64). All 195 male farmers used chemical pesticides; 38.9%-67.7% applied with the wind, increasing drift, and 31.5%-63.2% used full protective gear, linking to health issues like eye irritation (52%-71.7%) and headaches (38.35%-60.4%). Improper disposal (19.7%-42.6% left in fields) risked non-target species (e.g., dragonflies, frogs). Low IPM (25%-32.9%) and INM (24.1% -27.6%) adoption showed chemical reliance, despite 69.23%-75% hazard awareness. Undetectable residues suggest rapid dissipation but not risk elimination. Recommendations include promoting IPM, protective gear, better disposal, soil testing, and organic fertilizers. These findings offer baseline data for sustainable rice farming in Concepcion, Tarlac, enhancing soil health, farmer safety, and biodiversity.
650			_aRice soila
650			_aFarmer's practices
650			_aPesticides residues
700			_aLadra, Erico S. _eauthor
700			_aLalis, Christopher John O. _eauthor
700			_aMandal, John Joshua P. _eauthor
942			_2lcc _cBTH COS _n0
999			_c30381 _d30381