The comparative effect of 0, 0.2, 0.4, 0.6 and 0.8% Zn levels of zinc chelate (Zn-EDTA; 8% Zn) and zinc sulfate (23% Zn) applied as foliar sprays for assuaging zinc deficiency of chickpea cv. Gökçe was evaluated under field condition. The sprays were applied on the plants before blooming stage during 2012 and 2013 growing seasons and seed yield, yield components like plant height, pod number per plant, seed number per plant, hundred seed weight, harvest index and mineral concentrations (nitrogen, phosphorus, zinc and iron) in seeds were investigated. Plant height, pod number per plant, seed number per plant, hundred seed weight, harvest index and seed yield were investigated. The results showed that increased zinc doses caused an increase in Zn content of seed, while seed yield was not affected similarly. In general, plant height, pod number and seed number per plant increased by the application of zinc. Lower dose of Zn-EDTA and higher dose of ZnSO 4 gave higher yield components. Seed weight, harvest index and seed yield were not significantly influenced by Zn sources and doses; however, mineral concentration of seeds enhanced when Zn doses were increased. It was concluded that foliar application of zinc resulted in an increase in seed mineral contents rather than seed yield of chickpea. The dose of 0.6% with Zn-EDTA was the optimum combination for Zn enrichment in seed of chickpea.

To cite this paper: Kayan, N., İ. Kutlu, N.G. Ayter and M.S. Adak, 2017. Effects of different tillage systems and soil residual nitrogen on chickpea yield and yield components in rotation with wheat under dry farming areas. AbstractThe aims of this study were to determine how the tillage system and residual N of soil affected chickpea yield and its trait in rotation with wheat under Central Anatolia Region. In this study, two tillage methods viz. conventional and reduced tillage, three crop rotations; wheat-wheat; wheat-fallow; wheat-chickpea and four N levels of 0, 50, 100, 150 kg ha -1 were evaluated for four years duration (2012)(2013)(2014)(2015). Tillage methods were maintained into main plots, crop rotation into subplots and N levels into sub-sub plots. Only chickpea in continuous rotation with wheat was examined in this study. The results were evaluated according to split plot design with three replicates. Grain yield was higher under conventional tillage (CT) than reduced tillage (RT) in both of the growing seasons. Some important yield components were higher under RT than CT especially in the second growing season. These differences of tillage methods may also be due to climatic conditions. Residual fertilizer N significantly affected chickpea grain yield which increased with 100 and 150 kg N ha -1 levels. Results also indicated that; conventional tillage may be more appropriate for chickpea in rotation with wheat. Chickpea grain yield was also affected when N fertilizer applied to wheat.

This research aimed to determine the effect of different levels of nitrogen (N) on the growth, yield and the N accumulation of lentil plants grown under rain-fed conditions. The two-year field experiments with lentil were arranged in a randomised complete block design. Nitrogen was applied at four rates (0, 20, 40 and 60 kg ha-1) and all of the plots received half of the N rates before sowing in October and the remaining N rate in spring. The plants were harvested in the following stages: the first multifoliate leaf unfolding at the fifth node (V5) full seed or seed on nodes 10-13 that fill pod cavities (R6) and maturity (R8). The dry weight and N concentration of the shoot (leaf+stem), pod wall, and seed were then measured. It has been found that N application significantly affected the lentil characteristics. The maximum biomass accumulation and N accumulation were obtained at R6, and the N fertiliser had a positive effect on the seed weight and N accumulation. It can be suggest that 20 kg N ha-1 will increase the per-plant dry matter and N accumulation of the seeds under rain-fed conditions.

The field experiment was arranged in split plots based on randomised complete block design with three replications. In order to eliminate the contamination, treatments (C:control, BI:bacteria inoculation, N: nitrogen fertilization, BI+ N: bacteria inoculation+ nitrogen fertilization) were in main plots and cultivars (Isik-05, Yasa-05, Azkan, Hisar) were sub-plots. According to two-year results, N caused significant increases in pod number per plant and seed number per plant, BI caused significantly increases in only pod number per plant. However N+ BI had no positive effect over control. Thus, N and BI can not be suggested together. There were no significant differences among the cultivars with respect to seed yield and BI always caused same or higher seed yield. While cultivar Azkan produced similar seed yield in wet year, its performance was better in the dry year. Thus, cultivar Azkan and bacteria inoculation can be suggested together for sustainable chickpea production in central Anatolia and similar ecological conditions.

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