ارزیابی سیستم تلفیقی نهاده های زیستی و شیمیایی، اسید سالیسیلیک و آبیاری تکمیلی برخصوصیات مرفولوژیک و عملکرد کلزای پاییزه

۱٬۱۴۴ / ۵٬۰۰۰
In order to evaluate the integrated application of chemical-biological inputs and salicylic acid under the effect of supplementary irrigation on autumn rapeseed in the crop year 2018-2019, it was implemented in the research farm of the Faculty of Agriculture of Lorestan University in the form of a split plot design based on randomized complete blocks. The experimental treatments include the main factor of supplementary irrigation (I1: two supplementary irrigations (the first irrigation after seed planting and the second irrigation during the growing season) and I2: three supplementary irrigations (the first irrigation after seed planting, the second irrigation during the growing season and the last irrigation at the time of reproductive growth), and sub-factors of chemical-biological fertilizer combination (F1: NPK consumption of basic fertilizer, F2: 50% NPK chemical fertilizer + biological fertilizer (nitroxin-mycorrhiza) and F3: 25% NPK chemical fertilizer + biological fertilizer (nitroxin mycorrhiza) and salicylic acid (S1: zero mg, S2: 200 mg/L, and S3: 400 mg/L). The results of this study showed that the application of three stages of supplementary irrigation, the combination of chemical and biological fertilizers, and the use of salicylic acid improved the yield of rapeseed. It significantly increased compared to the control plant. According to the results of this research, the maximum weight of 1,000 seeds was recorded for the treatment of three irrigation stages. Also, the highest biological yield was obtained with 2.7620 kg per