Q.in which soil do mustard seeds grow
Which soil can we make to use to grow mustard seeds and in which soil is it commonly grown?
Mustard likes a fertile nicely drained loam. If you don't have this type of soil in your garden, you can gradually build it by adding organic amendments. This article will tell you more, and give you a place to start learning about building the soil: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/improving-garden-soil.htm
Here is more information on growing mustard: https://www.gardeningknowhow.com/edible/herbs/mustard/growing-mustard-seed.htm