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潜育性稻田是我省主要的低产田之一,约占稻田面积的40%左右,一般比非潜育性稻田每亩约减产100-200斤,严重阻碍农业生产的发展。改良潜育性稻田,提高共产量是当前的一个重要问题。各种农业技术措施对于潜育性稻田土壤理化性状的影响,同内外已做了很多研究,但对土壤微生物特性的影响,目前还报道得很少。本试验研究了施肥、开沟排水改良潜育性稻田的土壤和根表微生物的数量、土壤酶的活性和呼吸强度。试图查明改良潜育性稻田对土壤微生物特性的影响,并探索是否可用微生物数量和土壤酶活性作为衡量改良措施优越性的指标。
Fertile rice fields are one of the major low-yielding fields in our province, accounting for about 40% of the paddy field area, generally about 100-200 kg less per mu than the non-potential paddy fields, seriously hindering the development of agricultural production. Improve the fertility of paddy fields and increase the output is an important issue. Much research has been done at home and abroad on the effects of various agricultural techniques on the physical and chemical properties of soil in a gleyed paddy soil. However, the effects on the soil microbial properties are still poorly reported. This study investigated the fertilization, ditching drainage to improve the potential of paddy soil and root surface microbial populations, soil enzyme activity and respiratory intensity. Trying to find out the effects of improved glebe on the characteristics of soil microorganisms and exploring the availability of microorganisms and soil enzyme activity as indicators of the superiority of improved measures.