所谓营养土，就是比较疏松。肥沃、偏粘性的土，含有供水稻苗生长所需的各种养分，有机质4％以上，氮磷钾三要素齐全，pH值为6．5－6。软盘旱育的营养土，是经过充分冻晒的菜园地或旱地耕作层土壤，与充分腐熟的酸性土杂肥各半，破碎、拌匀过筛。每100公斤土加入45％三元复合肥 The so-called nutritional soil, is more loose. Fertile, partial sticky soil, containing water for the growth of rice seedlings all kinds of nutrients required, more than 4% organic matter, three elements of NPK, pH value of 6.5-6. Floppy dry nursery nutritious soil, after a full freeze in the vegetable garden or dry farming layer of soil, and full maturity of acid soil mixed fertilizer half, broken, mix and sieve. Add 45% ternary compound fertilizer to every 100 kg of soil