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伟大领袖毛主席教导我们:“矛盾存在于一切事物发展的过程中,矛盾贯串于每一事物发展过程的始终。”杉木的生长发育过程中,也存在不少矛盾;杉木黄化病,就是其中矛盾之一。这里分析一下杉木黄化病的发生发展过程,并根据其发生原因,提出几点防治建议。一、杉木与环境的矛盾 1.土肥:杉木喜疏松、深厚、肥沃的土壤,忌板结、浅薄、贫瘠的地方, 2.水分:杉木喜空气湿润,忌土嚷积水或干旱。 3.光照:杉木幼林时期为中性偏阴树种,喜上方光,忌烈日暴晒。
Great leader Chairman Mao taught us: “Contradictions exist in the development of all things, the contradictions run through everything in the process of development.” Fir growth and development process, there are many contradictions; fir yellow disease, is one One of the contradictions. Here to analyze the occurrence and development of cedar disease, and according to its causes, put forward some prevention and control recommendations. First, the contradiction between fir and the environment 1. Soil fertilizer: fir Hi loose, deep, fertile soil, avoid plate knot, shallow, barren areas, 2. Moisture: fir hi air humid, avoid soil shout stagnant water or drought. 3. Light: fir young forest period for the neutral shade species, like the light, avoid hot sun exposure.