During the academic year 2024-25, a study was conducted at the Department of Agricultural Meteorology, College of Agriculture Parbhani, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani, titled “Preparation of a Crop Weather Calendar of Pigeon Pea (Cajanus cajan L. Millsp.)”. The key objectives of this investigation were to: To prepare crop weather calendar of Pigeonpea. A decadal climatic analysis for the Parbhani region revealed considerable variability in weather patterns. Fluctuating temperature trends at this location have shown noticeable effects on pigeon pea yield across the Marathwada region. During this period, the mean maximum temperature reached up to 31.4 °C, while the minimum dropped to 19.0 °C. Mean annual rainfall was also variable, with the highest recorded value being 945.7 mm.
During the phenological assessment of pigeon pea, it was observed that the transition from emergence to the seedling stage required the longest duration, spanning approximately 25 to 29 days. In contrast, the shortest interval was recorded 5 to 8 days between sowing and emergence. However, climatic normals at Parbhani revealed that the highest cumulative rainfall was recorded in 28th SMW (1067.0 mm). The maximum average temperature (Tmax) reached 37.3 °C in the 23rd SMW, while the minimum average temperature (Tmin) dropped to 10.9 °C in the 51st SMW. Relative humidity levels also showed distinct patterns: the highest morning (RH-I) and evening (RH-II) relative xiv humidity values were recorded in the 38th SMW (89%) and 29th SMW (68%) respectively. Conversely, the lowest RH-I and RH-II values occurred in the 23rd SMW (73%) and 45th SMW (31%) respectively.
