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A field study was carried out during winter (rabi) seasons of 2020–21 and 2021–22 at Agricultural Research Institute, Professor Jayashankar Telangana State Agricultural University, Hyderabad, Telangana to evaluate planter performance in chickpea (Cicer arietinum L.). Experiment was laid in split plot design with 4 seed rates (52, 70, 77 and 105 kg/ha) with corresponding two inter and intra row spacings (30, 40 and 7.5, 10 cm) in main plots and 7 nutrient management treatments in sub plots, viz. Absolute control, 75, 100, 125% RDF, 75% RDF + Microbial consortia (MC) – Azotobacter + Phosphorus solubilizing bacteria + Potassium releasing bacteria + Zinc solubilizing bacteria (5 kg/ha), 100% RDF + MC and 125% RDF+MC. Results revealed that miss and multiple indices were 11.31 and 10.25 and 4.89 and 4.51% for 10 cm spacing and 7.21 and 6.00 and 5.12 and 5.19% for 7.5 cm spacing during 2020–21 and 2021–22. Higher energy use efficiency (4.64), energy intensiveness (1.61 MJ/₹), net energy benefit (58106.4 MJ/ha) and energy efficiency ratio (2.37) were with 105 kg/ha seed rate and higher specific energy (8.91 MJ/ha) was with 52 kg /ha. Among nutrient management, highest energy use efficiency (4.98) and energy efficiency ratio were with absolute control while, 125% RDF + MC resulted in higher energy intensiveness (1.61 MJ/₹) and net energy benefit (54365.1 MJ/ha). Higher specific energy and agro-chemical energy ratio was with 75% RDF (7.94 MJ/ha) and 125% RDF (0.48). Among seed rate, yield (seed and haulm) and energy indices were highest with 105 kg/ ha and among nutrient management, highest yield and energy indices were with 125% RDF + MC but, on par with 100% RDF + MC and 125% RDF treatments.

The study suggests that in chickpea higher WCI, HEI and lower WI were noticed with the application of pendimethalin + imazethapyr 1.0 kg/ha as PE fb MW at 30 DAS. Although the application of topramezone @25.2 g/ha as PoE fb MW at 40 DAS (T5) resulted in higher WCI and lesser weed dry weight at both 60 and 90 DAS, the residual effect of this treatment was evident on the succeeding crops. Thus, standardization of the dose of topramezone for chickpea without any phytotoxic effect on the succeeding crops would pave the way for effective weed management in a cropping system mode.

Field experiments were conducted during rainy (kharif) season, 2015 and 2016 to assess the impact of land configurations and nutrient management on Bt cotton (Gossypium herbaceum L.) at College Farm, College of Agriculture, Rajendranagar, Professor JayashankarTelangana State Agricultural University, Hyderabad, Telangana. Treatments consisted of four land configurations, viz. flat bed sowing, ridge and furrow, broad bed and furrow (BBF) and BBF laid with poly mulch as main plots and five nutrient management treatments in sub plots, viz. farmer’s practice, 100% RDF-150:60:60 NPK kg/ha, 125% RDF, 100% RDF along with 25% N through farmyard manure and 100% RDF along with 25% N through pressmud laid out in triplicated strip plot design. Results revealed that yield attributes (bolls per plant and boll weight), seed cotton yield and field water use efficiency were significantly higher with BBF with poly mulch along with application of 100% RDF + 25% RDN through organics (pressmud or FYM) comparable to BBF laid with poly mulch and application of 125% RDF through inorganics. Soil moisture extraction by crop was higher from 0–15 cm and 15–30 cm depth in poly mulch + BBF over other land configurations.