Deuteronomy 22:9 in the World English Bible
You shall not sow your vineyard with two kinds of seed, lest all the fruit be defiled, the seed which you have sown, and the increase of the vineyard.
Context
8 When thou buildest a new house, then thou shalt make a battlement for thy roof, that thou bring not blood upon thine house, if any man fall from thence.
9 Thou shalt not sow thy vineyard with divers seeds: lest the fruit of thy seed which thou hast sown, and the fruit of thy vineyard, be defiled.
10 Thou shalt not plow with an ox and an ass together.