This book is based on the Knowledge and Adoption of Recommended technology of Mustard cultivation in Rajasthan. Indian agriculture has done reasonably well science independence. This Significant achievement in food grain production in due to adoption of high yielding varieties and other critical inputs is agriculture. The important rape-seed mustard growing countries in the world are India, Canada, China, Pakistan, Bangladesh and Poland etc. India is the largest rape-seed mustard growing country in the world China ranks first is productivity followed by India. The major rape-seed mustard growing states are Rajasthan, Haryana, Madhya Pradesh and Uttar Pradesh representing 81 per cent of the national hectage. These states are contributing 82.9 per cent of total rape-seed mustard production. Rajasthan is the largest rape-seed mustard growing state and alone contributes 31.12 per cent production from the hectarage of 33.5 per cent. Oilseed crops occupy an important position is the farming system of India. These are highly paying crops of dry regions. It also describes the solution ways to overcome the problems related recommended technology of Mustard cultivation in Rajasthan.