A field experiment entitled “Effect of Foliar Application of Nano-Urea under Different Nitrogen Levels on Productivity and Quality of Pearl millet (Pennisetum glaucum L.)” was conducted at Research Farm, Vivekananda Global University, Jaipur (India) during Kharif season of 2021. The experiment was laid out with 9 treatment combinations comprising in a factorial randomized block design with three replications. Results showed that highest plant height, dry matter accumulation, chlorophyll content, nitrogen content, phosphorus content and potassium content in grain and straw of pearl millet was obtained with the application of 100% RDN which was significantly superior to 50% RDN. Results further showed that foliar spray of Nano-Urea (4 ml/l water) at 30 and 45 DAS significantly increased the plant height, dry matter accumulation, chlorophyll content, nitrogen content, phosphorus content and potassium content in grain and straw of pearl millet over control and foliar spray of Nano-Urea (4 ml/l water) at 30 DAS.

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An experiment was conducted at agricultural research station, SKRAU, Bikaner during rabi season of 2017-18 to evaluate yield of mustard as influenced by date of sowing and varieties in western Rajasthan. The treatment consisted of three dates of sowings viz., 10th October, 25th October and 9th November were kept in main plot and five varieties viz. RH-119, NRCHB-101, RGN-48, RH-749 and Laxmi was kept as sub plot replicated thrice in split plot design. Crop sown on 25th October recorded significantly higher seed yield as compared to 9th November sowing. In case of stover yield of mustard maximum was recorded under 25th October as compared to 10th October and 9th November. Days taken for emergence were no significant difference in varieties. RH-749 taken maximum days for 50 per cent flowering as compared to all varieties and for Siliqua appearance maximum days also taken by RH-749 as compared to NRCHB-101 and it statistically at par with RH-119, RGN-48 and Laxmi. RH-119 days to maturity and no. of branches/plant were minimum as compared to all varieties and these were remained statistically at par with each other. Maximum number of siliqua /plants was recorded under RGN-48 which was superior over rest of varieties and statistically at par with NRCHB-101. Highest grain/siliqua was recorded under NRCHB-101 over RH-119, RGN-48 and RH-749.

An experiment entitled “Evaluation of the CropSyst model to simulate the effect of irrigation and nitrogen levels on clusterbean” was carried out at village Bajju, Bikaner, Rajasthan during kharif season of 2016. The treatment comprising 3 levels of irrigation (100, 200 and 300 mm) and 4 levels of nitrogen (0, 20, 40 and 60 kg N/ha) comprising a total of 12 treatment combinations in split plot design with four replications. The simulation of CropSyst model was utilized to quantify and verify the interactive effect of different irrigation and nitrogen treatments on the productivity of clusterbean using measurements from field experiment. The soil of site are loamy sand having 86.3, 7.8 and 5.9 % of sand, silt and clay, respectively in 0-15 cm soil depth with pH 8.1 and low soil organic matter content (0.13%). The prediction of the model for seed yield and biomass was acceptable with 17.1 and 22.1 % of RMSE which may be considered good prediction by the model. However, the simulated N-uptake was over predicted by model and did not agreed with field measurements with 39.8% RMSE. The soil moisture content at different stages of growth was well simulated by CropSyst. The RMSE of moisture content ranged from 0.0123 to 0.0278 in clusterbean.

Present experiment   was conducted during Rabi season 2016-17 and 2017-18 at Research farm, Rajasthan Agricultural Research Institute, Sri Karan Narendra Agriculture University, Durgapura, Jobner, Rajasthan to find out the response of wheat cultivars to irrigation scheduling under different sowing dates. Thirty-six treatment combinations were investigated. Treatments comprises four irrigation levels: I1 (0.6 Etc), I2 (0.8 Etc), I3 (1.0 Etc) and I4 (1.2 Etc), three cultivars: C1 (Raj-4120), C2 (Raj-4079) and C3 (Raj-4238) and three dates of sowing: D1 (15th Nov.), D2 (30th Nov.) and D3 (15th Dec.) in split plot design. A critical examination of results showed that irrigation applied at 1.2 Etc (I4) recorded the maximum values of yield parameters (effective tiller per metre row length, number of grains per spike, length of spike per spike, spikes per metre square area and test weight) and yields. Further results on cultivar indicated that the Raj 4079 proved significantly superior over Raj 4120 and Raj 4238 with respect to all yield attributes. However, results showed that sowing of wheat on 15th November gave higher values for yield attributes and yield.