【摘 要】
：
１．有毒气体及其危害 （１）氨气主要来源于追施的铵态氮化肥和大量未腐熟的厩肥、人粪尿、鸡粪和饼肥等。铵态氮化肥在土壤中可以产生一定程度的挥发，一次性施肥量过大、表施或覆土过
【机 构】
：
通化农业学校! 134001,通化农业学校! 134001
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１．有毒气体及其危害 （１）氨气主要来源于追施的铵态氮化肥和大量未腐熟的厩肥、人粪尿、鸡粪和饼肥等。铵态氮化肥在土壤中可以产生一定程度的挥发，一次性施肥量过大、表施或覆土过薄、土壤呈碱性反应都可以加剧氨的挥发。有机肥料在分解过程中也能产生大量的氨气。当棚室
1. Toxic gases and their hazards (1) Ammonia mainly from the topdressing of ammonium nitrogen fertilizer and a large number of non-decomposed manure, human waste, chicken manure and cake and so on. Ammonium nitrogen fertilizer in the soil can produce a certain degree of volatility, a one-time fertilization is too large, top dressing or overburden too thin, soil alkaline reaction can exacerbate the ammonia volatilization. Organic fertilizers can also generate large amounts of ammonia during decomposition. When the shed room
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