THE PROSPECTIVE REQUIREMENTS OF ZINC AND MANGANESE FOR COTTON UNDER SOIL ZN AND MN DEFICIENCY | ||
| Journal of Plant Production | ||
| Article 1, Volume 30, Issue 9, September 2005, Pages 4969-4978 PDF (120.49 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jpp.2005.237459 | ||
| Author | ||
| M. F. EI Masri, | ||
| Plant Nutrition Oep. National Res. Centre, Ookkl, Egypt. | ||
| Abstract | ||
| Two field experiments were carried out at Kafr EI·Oawar Center. EI-Beheira Govemorate, Egypt, during 2003 and 2004 seasons to study the response of the Egyplian extra long staple Giza 70 cotton cultivar. to tow ;"liar feedings with Zn and Mn at two levels (l.e. 1.5 gil and 3 gil) either alone or in combination in comparison with a control( spraying water) in view of soil testing where the experimental soil sites suffer from t'1ese two micronutrients deficiencies. The results could be summarized c: follows : Foliar feeding with Zn and Mn had e significant effect on leal N. K. Mn and Zn contents in both seasons in favour of foliar feeding with Zn+Mn mixture either at the high or low level. Also. Ihese two treatments significantly increased plant height at harvest and number of fruiting branchesJplant in both seasons as compared with the control. Moreover. these two treatments significantly increased number of total bolls seUplant. boll setting % . earliness % . number 01 open boils! plant. boll weight. seed index. seed cotton yield/plant andtfed. in both seasons as compared with the control. Also, the results indicated thet foliar feeding with Zn or Mn alone at the high level significantly increased most of the above traits as compared with the control The results concluded that two loliar feedings with a mixture of 3 gIL zinc- EOTA (14% Zn). and of 3 gil manganese·EOTA (14% Mn). at the beginning of flowering and 15 days later, as the soil suffer from Zn and Mn deficiencies is the best treatment for good growth and high productivity of cotton ( cv, Giza 70 ). | ||
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