EFFECT OF SOME ORGANIC MANURES AND POTASSIUM ADDITION ON GROWTH, YIELD AND FRUIT QUALITY OF SULTANI FIG TREES | ||||
| Journal of Plant Production | ||||
| Article 17, Volume 32, Issue 2, February 2007, Page 1273-1291 PDF (970 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2007.206155 | ||||
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| Author | ||||
| A. M. Gowda* | ||||
| Olive and Semi – Arid Zone Fruits Res., Hort. Res. Instit., Agric. Res. Center, Giza, Egypt | ||||
| Abstract | ||||
| An experiment was carried out in a private orchard situated at Nasser District, Beni-Sweif Governorate to investigate the effect of some organic manure sources (cattle, sheep and chicken manures) as soil and / or foliar application of potassium and their combinations on growth, yield and fruit quality of Sultani fig trees grown on clay loamy soil during two successive seasons of 2005 and 2006. Data revealed that, the highest records of trunk and canopy circumferences were obtained from the fertilized trees with sheep manure and cattle manure, while chicken manure application gave the tallest shoots. Moreover, the highest values of leaf area, fresh weight and number of leaves/ shoot were recorded from trees treated with sheep and chicken manures. Meantime, cattle manure gave the heaviest leaf dry weight. Trees received 750 gm K2O in potassium sulphate form (48 % K2O) plus foliar potassium (1%) gave the highest values in most of the studied growth parameters in both seasons. The data also cleared that, Sultani fig trees fertilized with sheep and cattle manure gave the highest number of breba fruits/ tree, number of main fruits/ shoot and /tree, yield (kg/ tree), main fruit weight, diameter and height of fruit, TSS and total sugars. On the contrary, the same treatment gave the lowest values of total acidity and fruit moisture content. However, the application of 750 or 500 gm K2O and foliar potassium 1% don’t give significant differences on yield of Sultani fig trees .Whereas, the addition of 750 gm K2O + foliar 1% potassium surpassed of the treatments for fruit quality characters (except for total acidity and fruit moisture content). Moreover, the results showed that sheep manure when supplemented with 750 gm K2O and foliar 1% potassium gave the highest values for most of the studied characters in both seasons. As for Leaf nitrogen, phosphorus and potassium contents, sheep manure treatments increased leaf nitrogen and phosphorus contents, however chicken manure gave the highest content of potassium. The application of 500 gm K2O + foliar 1% potassium gave the highest leaf nitrogen and phosphorus contents in both seasons. It can be recommended that, sheep or cattle manure and potassium addition at 500 gm K2O/ tree as soil application + foliar 1% potassium can give the highest yield with the best fruit quality under the same conditions of this study . | ||||
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