EFFECT OF FOLIAR OR SOIL APPLICATION OF SOME MINERAL AND CHELATED MICRONUTRIENT FORMS ON THE YIELD AND ITS COMPONENTS OF PEANUT AND MAIZE GROWN ON SANDY SOIL | ||||
| Fayoum Journal of Agricultural Research and Development | ||||
| Article 2, Volume 20, Issue 1, January 2006, Page 9-24 PDF (551.35 K) | ||||
| Document Type: Research articles. | ||||
| DOI: 10.21608/fjard.2006.197562 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Nader R. Habashy; Michael I. Mikhail; Abdel Aziz M.M. Ragab | ||||
| Soils, Water and Environ. Res. Inst., Agric. Res. Center, Giza, Egypt | ||||
| Abstract | ||||
| Two field experiments were conducted on a sandy soil cultivated with two summer crops, i.e., peanut (Giza 5) and maize (Giza 2) under sprinkler irrigation system during growing season of 2004 at Ismailia Agric. Res. Station. The current work aimed to evaluate impact of micronutrients in two forms, i.e., mineral (Fe, Mn & Zn sulphates) and chelating compounds (Fe, Mn & Zn-amino acids, -citrate, -EDTA and - legnosulphate), added as foliar and soil application, on yield and its components for each of the studied crops as well as peanut seed and maize grain contents of some nutrients (N, P, K, Fe, Mn and Zn). Also, this study takes in consideration the residual effect of the two application methods on available micronutrients status in soil. The result obtained reveal that peanut and maize yields and their components showed, in general, a markedly response to all applied treatments, with a superior effect for foliar spray but insignificant differences with soil application, as shown in a descending order according to their effective roles: amino acids > citrate > sulphates > EDTA > legnosulphate. The chelating compounds of amino acids and citrate recorded the superior increases in both peanut and maize for protein content and 100 peanut seed or maize grain weights, while an inferiority effect was observed with legnosulphate. Both forms of EDTA and sulphates were lying in between. The superior effect of amino acids may be due to their more adhesion for chelating micronutrients, and enhancing their absorption and transportation inside the plant in easier status. Moreover, amino acids as micronutrient compounds are found in smaller molecules that are more suitable for cell membrane permeability. There were positive effects for the tested treatments, with exception of legnosulphonate, on micronutrient contents in peanut seed and foliage or maize grain and stover, with superiority for amino acids and citrate as micronutrient compounds. For the residual effect of the applied treatments on soil available micronutrient contents, data show a markedly increase in the case of soil application as compared to foliar spray, in spite of an insignificant differences between micronutrients uptake by the grown plants in both tested methods. From aforementioned results, it can be concluded that, the application of micronutrients either in mineral sulphates or chelating compounds under both foliar spray and soil application increased crop < br />yields and their components as well as improved the nutritional status of both peanut and maize plants grown on a sandy soil under sprinkler irrigation system, with relatively higher ability for increasing available micronutrients in soil under soil application than foliar one. | ||||
| Keywords | ||||
| Mineral and chelated micronutrient compounds; sandy soil; peanut; maize; foliar and soil application | ||||
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