中文摘要：

为提高有机基质栽培水分精细化管理水平,采用醋糟基质为黄瓜栽培基质,以‘碧玉2号’黄瓜为材料,在控制灌水量（T）分别为基质最大质量含水率的40%≤T1〈55%、55%≤T2〈70%、70%≤T3〈85%和85%≤T4〈100%的条件下,研究了不同灌溉水平处理对黄瓜植株生长、干物质积累、光合作用能力、产量、水分及氮素生产率的影响。结果表明：随着灌水量的增加黄瓜产量增加但水分利用效率下降,T4灌溉处理产量最高但其水分利用效率最低,T1处理水分利用效率最高但其产量最小;T2,T3和T4处理间叶片氮质量分数差异不显著,根系氮素质量分数间差异也不显著,T1处理果实氮素质量分数显著高于其他处理,而茎、叶氮素质量分数又显著低于其他处理,不同灌溉水平处理对有机基质栽培黄瓜氮素产量生产效率影响不显著。该文研究结果可为有机基质栽培的水分精确化管理提供技术支持和依据。

英文摘要：

For improving water use efficiency refinement management level of organic substrates culture, with ＂Biyu2＂ as material and vinegar residue substrate as cucumbers’culture substrate, four treatments with irrigation amount between 40% and 55% of the maximum mass moisture content of substrate （T1）, between 55% and 70% of the maximum mass moisture content of substrate （T2）, between 70% and 85% of the maximum mass moisture content of substrate （T3）, between 85% and 100% of the maximum mass moisture content of substrate （T4） were conducted and the effect of different irrigation level treatments on growth, dry matter accumulation, photosynthetic capacity, yield, water and production efficiency of nitrogen （N） of cucumber were studied. The results showed that： with irrigation amount increased, the yield of Cucumber increased but the efficiency of water use decreased; T4 had the highest yield but the lowest water use efficiency , and T1 had the lowest yield but the highest water use efficiency; leaf nitrogen content and root nitrogen mass fraction were both not significant difference between T2 , T3 and T4; fruits nitrogen mass fraction under T1 was significantly higher than other treatments, while the stems and leaf nitrogen mass fraction were significantly lower than other treatments; different irrigation levels treatment had no significant effect on nitrogen production efficiency of cucumber in organic substrates culture. Results can provide technical support and basis for water precision management in organic substrate cultivated.