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INCREASING PRODUCTIVITY OF HEAD LETTUCE BY FOLIAR SPRAYING OF SOME BIO AND ORGANIC COMPOUNDS | ||
| Mesopotamia Journal of Agriculture | ||
| Article 7, Volume 38, Issue 0, 2010, Pages 20-28 PDF (0 K) | ||
| DOI: 10.33899/magrj.2010.33649 | ||
| Author | ||
| Zakaria Fouad Fawzy | ||
| Abstract | ||
| Two field experiments were conducted during the two successive winter seasons of 2004/2005 and 2005/2006 at Berkash cv. Lymor (9283) to foliar spray by dry yeast at a rate of ( 2 and 4 g/L), amino green compound at a rate of (2 and 4 ml/L) and humic acid at a rate of (2 and 4 ml/L) on growth, yield and s"Giza Governorate" to investigate the response of head lettuce plants ome chemical contents of head lettuce plants.The results indicated that, application of amino green compound as a foliar spray at a rate of 4 ml/L gave the maximum number of head lettuce leaves compared with other treatments. In addition, the highest values of leaf dry weight, head fresh weight, total yield of heads and quality ( ascorbic acid and T.S.S ) were obtained by foliar application of 4 g/L dry yeast.The lowest amount of N-NO3 in leaves of head lettuce was recorded by using humic acid as a foliar spray at a rate of 4 ml/L. On the other hand, the highest amount of N-NO3 was recorded when amino green compound was used as a foliar spray at a rate of 4 gm/L. The highest content of N and P as well as Fe, Mn and Zn were recorded by foliar spray of dry yeast at a rate of 4 ml/L. Meanwhile, the highest amount of K given when humic acid was sprayed at a rate of 4 ml/L. | ||
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