Ref1

https://books.google.com.my/books?id=lL1GDwAAQBAJ&pg=PA158&lpg=PA158&dq=Petroselinum+crispum+var.+tuberosum+soil+texture&source=bl&ots=aBNM3MINX8&sig=ACfU3U1loseaKthOZxNoTMyxHbqYYum4QQ&hl=en&sa=X&ved=2ahUKEwjr0p7QvPThAhW37nMBHf6vCXQQ6AEwD3oECAgQAQ#v=onepage&q=Petroselinum%20crispum%20var.%20tuberosum%20soil%20texture&f=false