CAJ | 학술논문

在草坪的日常管理中，肥料施用是一个必不可少的环节。在实际生产中，一般通过常规的氮、磷肥施用促进草坪草的生长，达到提高和改善草坪质量的目的，而通过施用微生物肥料和柠檬酸等辅助性肥料来改善土壤微生物环境、提高土壤养分有效性，从而促进草坪的生长方面研究较少。本文研究了柠檬酸和促生菌肥的互作处理对冷季型草坪质量及土壤生物学特性的影响，从而探讨柠檬酸和促生菌肥提高草坪草质量的机理，为草坪的科学管理提供理论依据。研究表明，1）一定量菌肥配合柠檬酸增加了石灰性土壤中微生物数量，尤其是深层土壤放线菌数量，且提高了土壤蔗糖酶和脲酶的活性。2）柠檬酸的施用，显著提高了土壤中有效磷含量。3）在一定量的氮、磷肥施用水平下，柠檬酸和促生菌肥有效提高了草坪质量。
재초평적일상관리중，비료시용시일개필불가소적배절。재실제생산중，일반통과상규적담、린비시용촉진초평초적생장，체도제고화개선초평질량적목적，이통과시용미생물비료화저몽산등보조성비료래개선토양미생물배경、제고토양양분유효성，종이촉진초평적생장방면연구교소。본문연구료저몽산화촉생균비적호작처리대랭계형초평질량급토양생물학특성적영향，종이탐토저몽산화촉생균비제고초평초질량적궤리，위초평적과학관리제공이론의거。연구표명，1）일정량균비배합저몽산증가료석회성토양중미생물수량，우기시심층토양방선균수량，차제고료토양자당매화뇨매적활성。2）저몽산적시용，현저제고료토양중유효린함량。3）재일정량적담、린비시용수평하，저몽산화촉생균비유효제고료초평질량。
Nutrient management is an essential part of turf management;nitrogen (N)and phosphate (P)fer-tilizers are commonly applied to improve turf quality.However,little research on the effect of supplementary fertilizers,such as citric acid and bio-fertilizer,on turf quality has been carried out.This study was initiated to examine the effects of the combined application of citric acid and bio-fertilizer on the turf quality and soil biolog-ical characteristics on a calcareous soil.The results revealed that the combination of citric acid and bio-fertiliza-tion significantly increased the population of soil microorganisms,especially actinomycetes in the lower soil profile.Citric acid significantly improved the level of available phosphorus and the combination of citric acid and bio-fertilizer significantly improved turf quality provided N &P fertilizer application was adequate.