A field experiment was carried out during rabi season in December 2021-May 2022 at the Crop Research Center Department of Soil Science and Agriculture Chemistry, School of Agriculture, ITM University, Gwalior, Madhya Pradesh, to investigate the effect of different levels of N, P and K fertilizers with biofertilizers on growth, dry matter accumulation and yield of Chilli (Capsicum annum L.) in Alluvial soil of Gwalior, Madhya Pradesh. The experiment was laid out in randomized complete block design with three replications. The experimental treatments comprised nine NPK with biofertilizers combinations as control, (no nutrient added) 50% RD of NPK, 75% RD of NPK, 100% RD of NPK, 50% RD of NPK with N-fixer, 50% RD of NPK with Aspergillus niger, and 50% RD of NPK with N-Fixer & Aspergillus niger, 75% RD of NPK with N-fixer, 75% RD of NPK with Aspergillus niger, and 75% RD of NPK with N- Fixer & Aspergillus niger. Growth and yield significantly influenced by different doses of NPK with biofertilizers. Application of 75% RD of NPK with N- Fixer & Aspergillus niger) produced the tallest plant height maximum dry matter production at harvest-1), highest green chilli and stover yield of chilli (122.54 q ha-1 and 14.38 qha-1). Based on the results of this study, it can be suggested that the combined use of 75% RD of NPK with N- fixer + Aspergillus niger increased plant growth and fruit yield of chilli.

In the rabi season of 2021–2022, a field experiment was set up at the Crop Research Centre–I, School of Agriculture, ITM University, Gwalior (M.P.) in a Randomised Block Design (factorial) with three replications. Twelve treatments were made up of three varieties HM Super 222, Bombay 76, and Lafar Kranti and four sulphur concentrations 0, 20, 40, and 60 kg S ha-1 to determine the ideal sulphur dosage and the ideal variety for increased output. On November 11, 2021, the experiment was planted in the CRC- I. At all of the periodic crop growth phases, with the exception of 30 DAS, there was a substantial increase in plant height, number of branches, total number of leaves, leaf area index, and dry matter accumulation from application of 0 to 60 kg S ha-1. At 60, 90 DAS and harvest, the higher values of growth parameters were recorded at the maximum amount of sulphur, or 60 kg S ha-1 with the exception of 40 kg S ha-1 where it was comparable to each other. Number of siliqua per plant, siliqua length, seed per siliqua, and seed yield were all significantly influenced by sulphur levels. The highest values were 60 kg S ha-1, which were comparable to 40 kg S ha-1. Among varieties, plant height, number of branches, total number of leaves, leaf area index, and dry matter accumulation of variety HM Super 222 were recorded significantly superior to variety Lafar Kranti and comparable to Bombay 76 at all growth stages except 30 days after sowing. Number of siliqua per plant, seed per siliqua and siliqua length of variety HM Super 222 were recorded significantly maximum to Lafar Kranti while comparable to Bombay 76. 1000 grain weight and harvest index were non-significant. Seed yield and stover yield were highest in variety HM Super 222. Economically the application of 40 kg S ha-1 and HM Super 222 variety gave maximum net return and benefit cost (BC) ratio.