论文部分内容阅读
我场处在海拔1600米左右的高山地区,适宜发展落叶松,但十年九旱,水源奇缺,没有灌溉条件,落叶松如何发展?我们着眼于“旱”字,立足于“干”字,从客观实际出发,大胆创新,1976年开始进行旱地育苗试验。1977年调查,折合亩产苗33万株以上,平均苗高20厘米,最高53厘米。去年又试种3亩,除被大雨淤埋一部分外,保存率仍较高。两年来初步摸索出以下几点做法:
My field at an altitude of 1600 meters alpine region, suitable for the development of larch, but ten years of drought, water scarce, no irrigation conditions, how the development of larch? We focus on “drought”, based on the “dry” , Proceeding from the objective reality, making bold innovations, began experimenting on dryland seedling nurturing in 1976. 1977 survey, equivalent to more than 330,000 mu of seedlings per plant, the average height of 20 cm, the highest 53 cm. Last year, another 3 acres of test plant, in addition to being buried part of heavy rain, the preservation rate is still high. The first two years to explore the following practices: