Although soil erosion is a natural occurrence on all land, there are certain factors that call accelerate erosion making it more noticeable and problematic. While there are many different factors that can cause soil erosion, most can be broken down into two main categories: 1  Erosion by Water. 2  Erosion by Wind.
This article is about the plant. For other uses, see Mustard. Brassica juncea, mustard greens, Indian mustard, Chinese mustard, Jie Cai (in Mandarin) or Kai Choi (in Cantonese), or leaf mustard is a species of mustard plant. Subvarieties include southern giant curled mustard, which resembles a headless cabbage such as kale, but with a distinct horseradish-mustard flavor.
Powdered mustard is a combination of brown and white seeds mixed with turmeric or saffron for added flavour and colour. It has no aroma when dry, but when mixed with water, it develops a strong flavour in around 10 minutes. For this reason, powdered mustard is usually made into a paste before use in dishes.