Mustard is said to help suppress weed growth and provides a living mulch…
“The advantage of sowing mustard are that it disinfects and regenerates the soil, it stimulates the life of the soil and curbs nematodes, especially potato root eelworm, which is why it is so useful to sow the seed.
It gives the feared nematodes very little chance in the garden.
Its effect on all plant life, including the crucifers, is not negative but positive.”…