000			00475nam a2200157Ia 4500
008			220216s9999 xx 000 0 und d
100			_aKarthikakuttyamma M
245		0	_aAvailable phosphorus and potassium status of rubber growing soils in relation to manuring of leguminous ground covers
260			_bRubber Board Bulletin _c1976
300			_a33-35
650			_aRock phosphate
650			_aRubber soil
700			_aBalan M V
700			_aGeorge C M
942			_cJS
999			_c54626 _d54626