000			01716nab a22003617a 4500
001			G49857
003			MX-TxCIM
005			20170719155028.0
008			121211b |||p||p||||||| |z||| |
022			_a1573-5036 (Revista en electrónico)
040			_aMX-TxCIM
041	0		_aEn
043			_aNL
072		0	_aF22
082	0	4	_a82-765016
100	1		_aPonnamperuma, F.N.
245	0	0	_aDilute hydrochloric acid as an extractant for available zinc, copper and boron in rice soils
260			_c1981
340			_aPrinted
500			_a42 ref.; Summary (En)
500			_aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0032-079X
520			_aBecause zinc deficiency is a widespread disorder of wetland rice and copper deficiency may occur with it, 0.05 M HCl was compared with 0.1 M HCl, EDTA and DTPA as an extractant for available zinc and copper. It was also compared with the reflux method for boron assay. Thirty-three wetland rice soils were analyzed for zinc and copper by the four methods. Rice was grown on the flooded soils, scored visually for zinc deficiency, and the plants analyzed for zinc and copper content. In the boron study, 53 soils were extracted by the reflux method and the 0.05 M HCl procedure. Rice was grown on the flooded soils, scored visually for boron toxicity, and the
546			_aEnglish
591			_aCOMOD|Springer
595			_aAC
650	1	0	_aMicronutrients _91179
650	1	0	_aRice oryza
650	1	0	_aSoil chemistry and physics
700	1		_aCayton, M.T., _ecoaut.
700	1		_aLantin, R.S., _ecoaut.
773	0		_tPlant and Soil _n82-765016 _gv. 61, no. 3, p. 297-310
942			_cJA
999			_c14580 _d14580