عنوان مقاله [English]
نویسندگان [English]چکیده [English]
In order to introduce a sustainable soil fertility system in Kurdistan province (Sanandaj), a field experiment was carried out in 2007 and 2008 growing season. In this research effect of different fertilizers including farm yard manure, compost, biofertilizers, chemical phosphorus and green manure was investigated on grain yield and quality of chickpea (Cicer arietinum, Pirouz cultivar). Experimental units were arranged in split-split plots design based on randomized complete blocks with three replications. Main plots consisted of (G1): establishing a mixed vegetation of Vicia panunica and Hordeum vulgare and (G2): control, as green manure levels. Also, five methods for obtaining the base fertilizer requirement including (N1): 20 t.ha-1 farm yard manure; (N2): 10 t.ha-1 compost; (N3): 75 kg.ha-1 triple super phosphate; (N4): 10 t.ha-1 farm yard manure & 5 t.ha-1 compost and (N5): 10 t.ha-1 farm yard manure & 5 t.ha-1 compost & 50 kg.ha-1 triple super phosphate were considered in split plots. Four levels of biofertilizers were (B1): Bacillus lentus and Pseudomonas putida; (B2): Trichoderma harzianum; (B3): Bacillus lentus and Pseudomonas putida & Trichoderma harzianum; and (B4): control, (without biofertilizers). Results showed that green manure increased pod number/plant and number of fertile pods per area. Integrating biofertilizers (B3) and green manure (G1) produced the highest rate of pod number per plant. G1×N5 interaction obtained the highest amount of yield component (p≤0.01). However sole application of chemical phosphorus and phosphate solubilizing bacteria (PSB) has not significant effect on 100 grain weight. Regarding to significant differences between experimental treatments in all two and three way interactions G1N5B3 was determined as the superior treatment. Significant increasing of N, P, K, Fe and Mg in chickpea leaves and grains emphasized on superiority of mentioned treatment. Highest amount of protein and starch were obtained under (N5) treatment. Also, this treatment having low crude fiber, high total sugar content and reduced cooking time, increased the quality of chickpea grains.