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吴县光福公社位于太湖低山丘陵区,山地土壤瘠薄,含石砾较多,养分稀少;或质地粘重板结,物理性能差,加之气候条件与中心产区差距较大,致使杉木生长受到了一定限制.但在高标准造林以后,若能及时采取松土、除萌、开沟埋青、施肥和培土等抚育管理措施,积极改善土壤的理化性能,创造杉木适生的良好条件,可以促进幼树生长.为此,我们于1981年11月24在本公社陈华大队对2年生杉木幼林进行了施肥与不施肥的生长调查,探讨施肥对幼林树高生长的效应,现将调查分析结果简报如下:
Wuxian Guangfu commune is located in the hilly region of Taihu Lake, mountain soil infertility, with more gravel, nutrient scarce; or texture sticky board junction, poor physical performance, coupled with the climatic conditions and the central producing areas, a large gap, resulting in the growth of Chinese fir But after a high standard of afforestation, if we can timely take measures such as loosening, removing sprouts, digging ditches, fertilizing and earthing and other tending and management measures, and actively improve the physical and chemical properties of the soil to create favorable conditions for Chinese fir plantation, we can promote Therefore, on November 24, 1981, we investigated the growth of 2-year-old Chinese fir young forest in the Chenhua Brigade of the Commune to investigate the effect of fertilization on young tree height growth. Briefing is as follows: