بررسی اثرات فاصله بین ردیف کاشت و زمان آبیاری تکمیلی بر عملکرد و اجزای عملکرد نخود دیم.

In order to evaluate the effects of supplementary irrigation time and different levels of planting row spaces on yield and yield components in chickpea cv. Hashem, a field study was conducted at Goonbad-e-Kavoos district during 2012-2013 cropping season. Treatments were arranged as split plot in randomized complete block design with four replications. Different supplementary irrigation time levels (rainfed without irrigation, supplementary irrigation in flowering stage and supplementary irrigation during pod filling stage) were assigned to main plots and sub-plots comprised of different row spaces (70, 50, 30 and 20 cm). Results showed that supplementary irrigation time and row spaces significantly affected on pod numbers per plant, seed numbers per plant, 100-grain weight, grain yield per unit area, harvest index and biologic yield. In this study, 100-grain weight in 50 and 70 cm row spaces was higher than 20 and 30 cm. The most and the least of grain yield was gained by supplementary irrigation in flowering stage (1602 kg/ha) and rainfed without irrigation (1014 kg/ha), respectively. Under row spaces levels, the highest and minimum amount of grain yield was seen in 20 cm (1402 kg/ha) and 70 cm (1149 kg/ha), respectively. Supplementary irrigation in flowering stage × 20 cm row space had the highest grain yield (1789 kg/ha) among whole studied treatments and then could be recommended for the east of Golestan province district.