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1、整地核桃的主根生长较深,应选择地势平坦,土层较深厚,排灌良好的苗圃地。在结冻前或早春化冻20厘米时进行耕翻,每亩施4,000—6,000斤基肥。一般采用作畦和大垅双行两种方式。畦宽1米,长10米,每个畦中作两条小垅,一般垅距20厘米,以便结冻前将畦埂上的土覆在压倒的苗木上防寒。采用大垅双行时,垅距为60厘米,垅面宽30厘米。2、播种播前再进行一次肉眼粒选,剔除不充实(摇动有响声)及破伤的种子。春季播种前(清明前后)需进行种子处理。处理方法很多,锦州地区常用冷水浸种
1, the main root of the soil preparation walnut growth deeper, should choose flat, deep soil, irrigation and drainage well nursery. Before freezing or early spring thawing 20 cm tilling, applying 4,000-6,000 pounds per acre basal fertilizer. Generally used for 畦 and 垅 double line two ways.畦 wide and 1 meter long, 10 meters long, each 畦 as two small 垅, generally 垅 distance of 20 cm, so that before freezing the soil on the 覆 覆 overwhelmed seedlings cold. When using double row, the distance is 60 cm and the width is 30 cm. 2, before sowing sowing before the election of the naked eye, remove the lack of enrichment (shake a sound) and broken seeds. Before sowing in spring (around Qingming) seed treatment is required. Many ways to deal with Jinzhou cold soaked commonly used species