農讀S2EP.13:一樣的肥料,換塊地效果差更多?解密決定肥效的五個土壤關鍵! episode artwork

EPISODE · Sep 18, 2026 · 13 MIN

農讀S2EP.13:一樣的肥料,換塊地效果差更多?解密決定肥效的五個土壤關鍵!

from 農.讀 · host 阿德

同一包肥料、同樣的用量,換一塊地種,作物能吸收到的比例居然可以差更多,問題到底出在哪?答案是土壤環境本身!肥料就像各種不同形狀的鑰匙,但是能不能順利被作物解鎖吸收~土壤酸鹼值(PH值)就是關鍵!例如:太酸太鹼都會讓磷這類養分被鐵、鋁、鈣結合固定住!第二個關鍵是陽離子交換容量(CEC),可以想成土壤的金庫大小,顆粒細的黏土表面積大、金庫大,能存住的養分自然多;沙質土顆粒粗、金庫小,肥料就容易留不住。第三是有機質,就留著到節目裡聽囉~ 最後是阿德的小提醒:如果肥料用量一直沒變,但是作物的表現卻越來越像缺肥,與其一直加重用量,不如先回頭檢查節目裡提到的五個關鍵因子! 有問題找阿德:[email protected] 阿德的社群:https://reurl.cc/3kZX80 歡迎大家加入一起學習分享 阿德的FB:https://www.facebook.com/i.am.atete -- Hosting provided by SoundOn

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農讀S2EP.13:一樣的肥料,換塊地效果差更多?解密決定肥效的五個土壤關鍵!

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