摘要：
According to the mixture design {3, 2} simplex lattice theory, the merits of different proportions of rice chaff, sludge compost and vermiculite mix substrates were analyzed from the physical and chemical properties, the growth of alkali thatch physiological indices, the turf comprehensive quality and grass production cycle, respectively. The results showed that all the substrate of sludge compost mixed with rice chaff ( T4 ) and the substrate of sludge compost mixed with vermiculite (T6), the substrate of sludge compost mixed with rice chaff and vermiculite (CK1) had excellent physicochemical properties with plenty nutrients, low bulk density and the suitable values of pH and EC, and were suitable for cultivating turf grass. Comparing with the field soil (CK2), the substrate contains sludge compost increased the turf chlorophyll content. The root activity of T6 and CK1 decreased slightly but the catalase activity of them increased. Both the root activity and the catalase ac-tivity of T4 decreased slightly. The free proline content of T4, T6 and CK1 increased but didn‘t reach significant difference (P>0. 05). For the turf-grass comprehensive quality, the highest value occurred in CK1, followed by T4 and T6. A model was established based on the ratio of the mixtures combined with the production cycle, a total of 5 151 combing schemes were obtained by simulation and optimization, in which the shortest production cycle scheme was 18 days whcih contained 1 335 combing schemes, the scopes of rice chaff ( x1 ) sludge compost ( x2 ) , vermiculite ( x3 ) were 0≤x1≤90%, 10%≤x2≤30%, 0≤x3≤84%, respectively. Therefore, it was completely reliable and feasible to adopt rice chaff, vermiculite and sludge compost mixtures to cultivate the high quality alkali thatch soilless lawn.%根據(jù)混料設(shè)計{3,2}單形格子理論設(shè)計,分別從理化性狀、堿茅草生長生理指標(biāo)、草坪綜合質(zhì)量和草坪生產(chǎn)周期等方面分析了稻糠、污泥堆肥和蛭石不同比例混合基質(zhì)的優(yōu)劣。研究表明：稻糠與堆肥混合基質(zhì)(T4),蛭石與堆肥混合基質(zhì)(T6),稻糠、蛭石和堆肥混合基質(zhì)(CK1)的容重適中,營養(yǎng)充足, pH和EC值適宜,適合草坪草生長。與大田( CK2)相比,含堆肥基質(zhì)可顯著提高葉綠素含量； T6、 CK1的根系活力稍有降低,但提高了草坪草過氧化氫酶活性,而T4根系活力和過氧化氫酶活性稍有降低；且三者的游離脯氨酸含量雖有所增加,但無顯著差異(P>0．05)。綜合評價草坪草質(zhì)量以CK1最高, T4、 T6次之。通過建立基質(zhì)配比與生產(chǎn)周期的關(guān)系模型模擬優(yōu)化共得5151套基質(zhì)組合方案,其中生產(chǎn)周期最短為18 d,共1335套方案,體積分?jǐn)?shù)范圍分別為：0≤x1(稻糠)≤90%,10%≤x2(污泥堆肥)≤30%,0≤x3(蛭石)≤84%；因此,以稻糠、蛭石和污泥堆肥等開發(fā)高質(zhì)量堿茅草無土草坪栽培基質(zhì)是完全可行的。
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