The book includes a description on vegetables raised through direct seeding; importance of seeds in vegetable production; vegetable seed production in the hills; manures and fertilizers; irrigation; drainage; mulching; weed flora and their control; vegetable cropping; off-season vegetable production; vegetable protection from insect-pests and diseases, and frost.
タイトルや名前を忘れても、記憶から映画やドラマにたどり着ける検索プラットフォーム
