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1997年在中国农业大学曲周试验站设置了施用EM堆肥与传统堆肥的田间试验,2004年和2005年在玉米与小麦生长期间取样分析土壤线虫的群落结构,结果表明:在玉米与小麦田总共发现49个线虫属,包括17个食细菌线虫属,5个食真菌线虫属,18个植物寄生线虫属,9个捕食-杂食线虫属。在EM堆肥处理中共发现46个线虫属,而在传统堆肥处理中共发现42个线虫属。植物寄生线虫是优势的营养类群,其次为食细菌线虫,它们的相对丰度分别是59.26%,31.55%。在玉米与小麦生长季节,线虫的Wasilewska、营养多样性、申农多样性、均匀度及植物寄生线虫成熟指数处理之间差异不显著,但是取样日期之间差异显著(P<0.01)。与传统堆肥相比,多年施用EM堆肥加快了土壤有机物的转化,提高了土壤的含氮量,增加了土壤线虫总数与食细菌线虫数量。
In 1997, a field experiment was conducted at Quzhou Experimental Station of China Agricultural University to apply EM compost and traditional composting. Sampling and analysis of soil nematode community structure during corn and wheat growth in 2004 and 2005 showed that in maize and wheat fields, Forty-nine nematode species were found, including 17 Bacteriviruses, 5 fungi Nematocides, 18 plant parasitic nematodes, and 9 predator-omicronids. A total of 46 nematode species were found in EM composting, compared with 42 nematodes found in traditional compost treatments. Plant parasitic nematodes are the predominant nutritional groups, followed by bacterial-eating nematodes, their relative abundances are 59.26% and 31.55%, respectively. There was no significant difference between Wasilewska, nutrient diversity, agronomic diversity, evenness and parasitic nematode maturity index of nematodes during the maize and wheat growing seasons, but there was significant difference between the sampling dates (P <0.01). Compared with the traditional compost, the application of EM composting for many years accelerated the transformation of soil organic matter, increased soil nitrogen content, increased the total number of soil nematodes and the number of bacterial eradication.