Document Type : Full Paper
Authors
Department of Soil Science, Faculty of Agriculture, University of Tabriz, Tabriz, Iran
Abstract
To investigate effects of vermicompost (VC), nitrogen (N), sulfur (S), and manganese (Mn) on fruit yield, some agronomic traits, and water use efficiency (WUE) of cucumber, an experiment was conducted as CRD with 16 treatments and 3 replications under greenhouse conditions. Treatments were control, N: using 150 mg N/kg soil, Mn: using 13 mg Mn/kg, S: using 500 mg S/kg, N+Mn, N+S, S+Mn, N+S+Mn, VC: using 30 g VC/kg, VC+N, VC+Mn, VC+S, VC+N+S, VC+N+Mn, VC+S+Mn, and VC+N+S+Mn. During growth period, fruit fresh and dry weights, fruit volume, fruit length, fruit diameter, amount of water used, and at the end of growth period, fresh and dry weights of shoot and root, plant height, biological yield, number of leaves, and WUE were measured. The results showed that applications of N and Mn increased shoot dry matter, plant height, fruit diameter, and fruit length of cucumber, but did not have significant effects on other studied characteristics. Application of S◦ increased plant height, fruit diameter, and fruit length of cucumber, but did not have significant effect on other studied characteristics. Application of VC increased fresh and dry weights of fruit, fruit length, fruit diameter, fruit volume, number of fruits, number of leaves, plant height, shoot fresh and dry weights , biological yield, and WUE. The highest values of all studied traits were observed in integrated treatment of VC+N+Mn+S. Generally, in order to increase yield and reduce using chemical fertilizers, integrated application of vermicompost and N, Mn, and S could be recommended in similar conditions.
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