Document Type : Research Article
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Abstract
In current study, seven organic fertilizers including; Leaf Mold (LM), Rice Husk (RH), Manure, Spent Mushroom Compost (SMC), mixture of LM, RH and SMC (M 1), mixture of LM, RH and Manure (M 2) with the ratio of 1:1:1 and control (no fertilizer) along with some levels of soil compactness comprising roller weights of 36, 56, 76 kilogram were used. Treatments were applied in a strip plot design with three replications, in research farm of Gorgan University of Agricultural Sciences and Natural Resources during fall 2008-2009. Effects of these treatments were investigated on chlorophyll content of lawn, amount of density and cover rate, growth height and percent of plant dry matter in fall season. According to results, SMC and RH treatments in first compactness, manure and M2 treatments in second compactness and manure treatment in third compactness showed the maximum chlorophyll content. The most and the least amount of nitrogen in each three compactness levels were observed in manure and control treatments, respectively. The highest density was related to manure treatment and the lowest one was related to LM treatment. In each three compactness, maximum and minimum height was observed in manure and control treatments, respectively. This project results will be used for lawn management in relation to the use of organic fertilizer and compactness rate of planting bed in Gorgan city conditions.
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