INTERCROPPING EFFICIENCY AND ITS EFFECTS ON SOIL FAUNA POPULATIONS IN EGYPT

Rizk, Marguerite A.; El-Gayar, Ensaf A.

doi:10.12816/0005511

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	INTERCROPPING EFFICIENCY AND ITS EFFECTS ON SOIL FAUNA POPULATIONS IN EGYPT
Article 7, Volume 61, Issue 61, June 2014, Page 125-136
Document Type: Original Research Papers
DOI: 10.12816/0005511
View on SCiNiTO
Authors
Marguerite A. Rizk ¹; Ensaf A. El-Gayar²
¹Plant Protection Research Institute. Agriculture Research Center, Dokki, Giza, Egypt
²Zoology Department, Faculty of Science, Tanta University, Tanta, Egypt
Abstract
Intercropping of non-legume plant with a legume crop is proving a successful system for better use of nutrients by plants, particularly in nitrogen deficient soils. Such a system may affect soil fauna activity. The present experiment was conducted at Fayoum Governorate (Egypt) in order to study the impact of wheat intercropped with faba bean on soil fauna populations. Cultivation period was between November 2010 and April 2011. Five treatments were designed: (1) wheat alone, (2) faba bean alone, (3) wheat intercropped with faba bean (1:1), (4) wheat intercropped with faba bean (2:1), and (5) wheat intercropped with faba bean (1:2). Soil fauna were collected monthly during the cultivation period by means of the pitfall trap method. Data of soil fauna populations were statistically treated by advanced multivariate statistical methods, correspondence analysis and ascending hierarchic classification. Soil fauna were dominated by Collembola, spiders, Diptera, Aphididae, Formicidae, Orthoptera and Coleoptera. Generally, intercropping increased soil fauna populations. This increase was associated with wheat intercropped with more rows of faba bean. These populations were also increased as the age of plants increased. The percentages of trophic groups including: herbivores, carnivores and detritivores were also discussed.
Keywords
Intercropping; Wheat; Faba bean; soil fauna; Herbivores; Carnivores; Detritivores
Main Subjects
Animal Ecology and Toxicology; Animal Nutrition and Biochemistry


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