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兰花既要肥又怕肥,因为“百病从根起”,而引发兰根病变的主要因素就是“气”和“肥”。在解决好基质的透气性后,影响兰根的关键就只有肥了。要想施好肥,首先要了解兰花对肥料的需求和兰根的特点。兰花和其他植物一样需要氮、磷、钾平衡,需要矿物质参与营养物质的合成。所不同的是兰花发育生长缓慢,所需肥料甚少。且兰根有与豆科植物相似的根瘤菌(俗称兰菌)能固定空气中的氮元素制造养分,一般可不施或少施氮肥。同时,兰根是皮薄肉嫩的肉质根,含水量很大,抵抗力很弱。如果肥料积累过多,
Orchids are both fat and afraid of fat, because “all diseases from the ground up,” and lead to Langen disease is the main factor “Qi” and “fat.” Solve the permeability of the matrix, the key to affecting Langen fat only. To apply good fertilizer, we must first understand the orchid’s needs for fertilizer and Langen’s characteristics. Orchids and other plants need nitrogen, phosphorus and potassium balance, the need for minerals involved in the synthesis of nutrients. The difference is that orchids grow slowly and require little fertilizer. And Langen rhizobia and legumes (commonly known as Lan bacteria) can fix the nitrogen in the air to create nutrients, generally can be applied or less nitrogen fertilizer. At the same time, Langen is a fleshy tender meat root, a large amount of water, resistance is weak. If fertilizer is accumulated too much,