000 01731nab a22004217a 4500
001 G28762
003 MX-TxCIM
008 121211b |||p||p||||||| |z||| |
040 _aMX-TxCIM
041 0 _aEn
043 _aUS
072 0 _aP34
072 0 _aP35
090 _aREP-4671
100 1 _aHeuvel, R.M. Vanden
245 0 0 _aCorn response to zinc on Illinois soils
260 _c1989
340 _aPrinted
500 _aTables, literature cited p. 75-76
520 _aField experiments were conducted over a 3-year period with maize at a total of 82 site-years to evaluate the Zn status of Illinois soils. Sites were selected that had soil chemical or physical properties favouring Zn deficiency, including high pH or Bray P1 extractable P, low OM, sandy texture and/or suspected of showing Zn deficiency symptoms. Soil extractable Zn was determined with three extractants: DTPA, EDTA-(NH4)2CO3 and 0.1 M HCl. Zinc was applied as ZnEDTA at 1 or 2 lb Zn/acre before sowing. Whole plant samples were taken at the6-leaf stage and ear-leaf samples at silking and analysed for Zn content. Grain yields were also determined. Soils
546 _aEnglish
595 _aRPC
650 1 0 _aIllinois
650 1 0 _aMicronutrient fertilizers
650 1 0 _aPlant nutrition
650 1 0 _aPlant soil relations
650 1 0 _aSoil deficiencies
650 1 0 _aSoil testing
650 1 0 _aTrace element deficiencies
650 1 0 _91315
_aZinc
_gAGROVOC
650 1 0 _91314
_aZea mays
_gAGROVOC
700 1 _aBrinkman, G.S.,
_ecoaut.
700 1 _aHoeft, R.G.,
_ecoaut.
700 1 _aSawyer, J.E,
_ecoaut.
700 1 _aSchmitt, M.A.,
_ecoaut.
773 0 _tJournal of Fertilizer Issues
_n615168
_gv. 6, no. 3, p. 68-76
942 _cJA
999 _c11898
_d11898