The effects of different row spacings, chicken manure doses and seed pre-applications on the yield, yield components and nodulation of chickpea (cicer arietinum L.)

This study was conducted to determine the effects of different row spacings, chicken manure doses and seed pre-applications on yield, yield components and nodulation of chickpea (Cicer arietinum L.) in Siirt conditions during 2016-2017 growing season. Trials were laid out in split-split plot design with three replications. In the study, three different row spaces (20, 30 and 40 cm) as main plots; seed pre-application and Mesorhizobium ciceri inoculation as split plots, and chicken manure doses (0, 40, 120 and 200 kg/da) were applied as split-split plots. According to the results of the study, plant height, first pod height, number of main branches, number of seconder branches, number of pods per plant, number of seeds per plant, 100-seed weight, grain yield, biological yield, harvest index, number of nodules per plant, wet nodule weight per plant, dry nodule weight per plant, seed protein ratio, protein yield, seed phosphorus content, seed potassium content, seed moisture ratio, and total dry matter ratio varied between 54.4-66.0 cm, 29.5-36.7 cm, 1.98-2.45 pcs/plant, 3.57-7.93 pcs/plant, 29.3-43.9 pcs/plant, 29.4-44.9 pcs/plant, 30.1-36.2 g, 83.4-253.7 kg/da, 201.3-584.9 kg/da, 41.3-43.7 %, 24.6-54.2 pcs/plant, 3.908-7.809 g, 0.659-1.234 g, % 21.9-23.1, 18.6-57.0 kg/da, 3309-4783 ppm, 9621-12585 ppm, 4.8-8.8 % and 90.4-95.3 %. The effects of row spacing, pre-application and chicken manure doses on grain yield were found to be significant. The grain yield increased as the row spacing decreased and the chicken manure dose increased. While the highest grain yield was obtained from 20 cm row spacing (190.3 kg/da), Mesorhizobium ciceri inoculation (157.8 kg/da) from the pre-applications gave the highest grain yield. In chicken manure application, it was obtained from the dose of 200 kg/da (157.7 kg/da). As the row spacing decreased, total dry matter ratio and seed potassium content increased, but the seed protein ratio and seed phosphorus content were not affected. The highest total dry matter ratio in the grain was obtained from 30 cm row spacing (94.4 %). Pre-applications and chicken manure doses did not affect seed protein ratio, seed phosphorus content and seed potassium content. As a result, in this study carried out under the ecological conditions of Siirt province, the highest grain yield was obtained from 20 cm row spacing + Mesorhizobium ciceri + 40 kg/da chicken manure application (253.7 kg/da).