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在地形复杂、坡度较陡、大雨频繁的毛竹林区,采用免耕施肥技术,既不造成水土流失,又能达到增产的效果。经试验,每年施碳铵70～80kg/亩、尿素15kg/亩的试验区比对照区竹笋增产69.88％,竹材增产34.94％,毛料增产30.93％;每年施碳铵40kg/亩和尿素20kg/亩的示范区比示范前竹笋增产669.2％,竹材增产131.82％,毛料增产97.54％。本研究免耕施肥方法有:开水平沟、竹蒲头打洞和每竹眉形沟施三种,均有明显效果,但三种方法之间无显著差异。
In the bamboo forest area with complicated topography and steep slopes and frequent heavy rains, no-till fertilization is applied, which will not cause soil erosion and increase yield. According to the test, the yield of bamboo shoots increased by 69.88% and that of bamboo increased by 34.94% and that of wool increased by 30.93% compared with the control. The annual application of ammonium bicarbonate 40kg / mu and urea 20kg / mu The demonstration area increased 669.2% than the pre-demonstration bamboo shoots, bamboo increased 131.82% and wool increased 97.54%. The no-till fertilization methods in this study include: open horizontal ditch, bamboo podou hole and bamboo ditch per bamboo ditch three kinds, have obvious effect, but no significant difference between the three methods.