苗木是植树造林的物质基础,肥料是苗木生长发育的“食粮”。俗话说:“地靠肥养,苗靠肥长”,说明了育苗生产中施肥的重要性。一、常用肥料的种类及性质。在育苗生产中,一般根据肥料被苗木吸收的快慢,把肥料分成迟效性和速效性肥料。迟效性肥料有有机肥、农家肥,主要来自农村种、养、积、制所得的各种肥料,包括厩肥(指牲畜粪尿)、堆肥(指垃圾和各种植物残枝落叶堆积沤制而成)等。这类肥料来源广,有机质丰富,养分 Seedlings are the material basis for afforestation, and fertilizer is the “food” for the growth and development of seedlings. As the saying goes: “rely on fertilizer, seedlings rely on fat long”, indicating the importance of fertilization in nursery production. First, the types and properties of commonly used fertilizers. In nursery production, fertilizer is generally divided into slow-acting and fast-acting fertilizers, depending on how fast the fertilizer is absorbed by nursery stock. The late-time fertilizers include organic fertilizers and farmyard manure, which are mainly derived from various kinds of fertilizers produced in rural areas such as animal husbandry and manure (including livestock manure excrement), compost (refer to garbage and stumps) And into) and so on. Such a wide range of fertilizer sources, rich in organic matter, nutrients