北方水土多呈碱性,不适宜种养南方花木。象杜鹃、茶花、兰花等花木,由于长期适应南方酸性、高铁、高铝及低盐的土壤环境,一旦种植在北方偏碱性的土壤中,常常会生长不良甚至死亡。因此使北方碱性土壤酸化,就成为栽培好这些喜酸性花木的关键。现简单介绍一下碱性土壤和水质常用的改良方法: 一.施用硫酸亚铁 1.施用矾肥水具体做法是将黑矾(硫酸亚铁)2.5～3千克,油粕或豆饼或粪肥10～15千克,水200～250千克, Most of the northern soil and water are alkaline, not suitable for planting southern flowers. Flowers such as rhododendrons, camellias, orchids often grow poorly or even die when grown in northern, alkaline soil due to their long-term adaptation to southern acidity, high-speed rail, high-aluminum and low salt soil environments. Therefore, acidification of northern alkaline soil, it has become the key to cultivate these hi acidic flowers. A brief introduction to alkaline soil and water quality commonly used methods of improvement: 1. The application of ferrous sulfate 1. The application of alum fertilizer water specific practice is to black alum (ferrous sulfate) 2.5 to 3 kg, meal or bean cake or manure 10 to 15 kg , Water 200 to 250 kg,