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东北地区,苗圃春季播种后,在床面上覆稻草,是一项沿袭多年的保苗措施。最近两年,我们在校办青梅实验林场苗圃,对落叶松、樟子松、赤松等针叶树新播苗床,用覆草炭代替覆稻草,获得良好效果。具体做法是: 在冬季或早春,趁地冻时,组织人力和车辆挖运草炭,贮放在苗圃的积肥场。春季化冻后,把草炭粉碎,堆成池形,灌入粪尿(加水),经过一年腐熟,翌年春季化冻后,将草炭打碎过筛。播种后,采用两种覆盖方式: 一种是先覆土0.5—0.8厘米厚,用木磙镇
Northeast China, nursery sowing in the spring, the bed covered with straw, is a follow-up for many years seedling protection measures. In the recent two years, we have run the nursery of green plum forest farm in our school. We obtained new seeding bed of conifers such as larch, Pinus sylvestris var. The specific approach is: in winter or early spring, while the ground is cold, the organization of manpower and vehicles dredging peat, stored in the nursery fertilizer plot. After the spring thawing, the peat crushed, piled into a pool, poured into the excrement (water), after a year of maturity, the following year after the spring thawing, the peat smashed sieve. After sowing, the use of two kinds of coverage: one is to cover the soil 0.5-0.8 cm thick, with Muxijiang