Mulching is a farming technique where a layer of organic or inorganic material is spread on the soil surface around plants. This layer helps to conserve soil moisture by reducing the rate of evaporation of soil water. Mulching also helps to prevent the growth of weed, which competes with crops for water and nutrients.
In addition, mulching can improve soil texture by preventing soil compaction and erosion. The organic materials in the mulch decompose over time, adding nutrients to the soil and increasing soil fertility. Mulching also helps to maintain soil temperature and reduce fluctuations that can stress plants.
However, it's important to note that not all types of mulch are suitable for all crops, and some types of mulch can increase soil acidity which can affect the growth of certain crops. Mulching can also prevent the growth of seedling diseases by creating a barrier between the soil and the young plants, reducing their exposure to pathogens.