论文部分内容阅读
为了适应山楂栽植面积不断扩大的生产形势,针对寒地气候特点,研究幼树早期丰产的栽培技术,提高山楂园早期经济效益,1978年建立21亩山楂早期丰产试验园,取得了6～8年生树平均亩产474.3公斤,八年生树亩产708.5公斤的产量。建园六年开始盈利,八年平均每亩纯利润264.62元,八年生园每亩纯利润达1,388.57元。试验情况与主要结果吉林省九台县沐石河乡常家村21亩山楂幼树早期丰产试验园,位于北向的坡岗地上,坡度13～20度,土层厚度25～50厘米。20厘米土层内有机质含量2.67%。栽植密度4×
In order to adapt to the hawthorn growing area of production situation, in view of the characteristics of the cold climate, young saplings early cultivation techniques to improve hawthorn garden early economic benefits, in 1978 established 21 acres of hawthorn early yield test garden, made 6 to 8 years The average yield of trees is 474.3 kilograms and that of the eight-year-old trees is 708.5 kilograms per mu. Construction Park began profitability in six years, with an average net profit of 264.62 yuan per mu for eight years and a net profit of 1,388.57 yuan per mu for an eight-year old park. Test results and main results 21 mu of Changzhou Hawthorn early seedling yield test garden in Mujihe Township, Jiutai County, Jilin Province, is located in the north slope of the slope, the slope of 13 to 20 degrees, the soil thickness of 25 to 50 cm. 20 cm soil organic matter content 2.67%. Planting density 4 ×