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雁北地区国营九梁洼林场,根据当地肥源广、水源足、土质好的特点,改变过去一年标插、二年平茬、三年移植、四年出圃的传统林木育苗法,试验采用稀插窝肥新技术育苗,三年就可出圃,苗木出圃合格率达89%,比原来提高一倍半还多。每株大苗成本0.43元,比原来降低1/3。
According to the characteristics of a wide range of local fertilizers, adequate water resources and good soil quality, the State Forestry Administration of Jiuliangwa Forest Farm changed the traditional seedling raising method of standard interpolation, two years of stubble, three years of transplanting and four years of nursery. The experiment adopted Nursing thin seedling fertilization new technology, three years can be nursery, nursery stock nursery pass rate of 89%, more than doubled than the original more than half. Seed cost per plant 0.43 yuan, lower than the original 1/3.