浅析我国木本花卉无土栽培现状

文章概述了我国木本花卉无土栽培的现状，对制约花卉无土栽培的重要因素——基质和营养液的研究状况与技术要点进行阐述，并对我国木本花卉无土栽培的未来发展进行展望。     

无土栽培新模式--营养液梯级利用初探

总结了中国无土栽培发展现状,以及存在栽培和生态环境的问题,并提出了一种新型的栽培模式—营养液梯级利用模式。阐述了营养液梯级利用模式的原理和初步的试验结果,论述了可行性,并对存在问题和研究方向进行了叙述。     

无土栽培技术在屋顶绿化中的应用

屋顶绿化可以拓宽城市绿化空间,净化城市空气,缓解城市热岛效应,改变建筑环境景观,改善建筑的小气候环境。但屋顶绿化也存在建筑的荷载、防排水问题。文章为更好地解决屋顶绿化问题,介绍了几种无土栽培的形式在屋顶绿化中应用的特点和优势,以期促进城市的绿化。     

EM原露在番茄无土栽培上的应用试验

以番茄豫艺红将军为试材,在连栋温室无土栽培环境下,进行了EM原露对番茄生长与产量影响的研究。结果表明,EM原露对番茄生长和产量的提高有着显著促进作用,并随施用量的增加而增加。     

Interactions between N,P and C mobilisations during spring growth of a semi-evergreen shrub (Ligustrum ovalifolium L.) grown in containers with different fertilisation schedules

Container-grown Ligustrum ovalifolium L. plants were used to determine the influence of nutrient availability on the mobilisation of carbon (C), nitrogen (N) and phosphorus (P) during spring growth. During the spring of the second growing season, plants either received no fertiliser, or were fertilised early (starting 17 days after bud break) or late (starting 3 months after bud break). Nutrient composition of different plant tissues was determined at several times during the second growing season from bud break to the end of elongation. Time of fertilisation did not influence aerial dry weight until flowering was completed. Plants that received no fertiliser or were fertilised late had greater root dry weight than plants that received fertiliser early. Fertilised plants had a second flush of growth after flowering completed. Nitrogen and phosphorus mobilisation occurred from bud break to the end of elongation (3 months). Nutrient mobilisation was effective in each perennial organ: root, trunk, ligneous stems and old leaves. However, the role of old leaves as storage organ was minor compared to evergreen tree leaves. Carbon mobilisation only occurred on the 1st month following bud break, before elongation. C-starch accumulation was observed in unfertilised plants even when the C-starch quantities in early fertilised plants were very low at the end of elongation, mainly in roots. In spite of fertilisation supplies, N and P quantities did not increase after elongation in the early fertilised plants, probably in relation to C insufficiency in roots to sustain N and P absorption and assimilation. By contrast, in late fertilised plants, high C quantities in roots were mobilised for N and P uptake and assimilation, which allowed both second growth flush and storage of N and P in perennial organs. The mobilisation of nutrients before and during elongation revealed the nutritional autonomy of shrubs, which could allow fertiliser use efficiency to be increased and environmental impacts to be minimised by delaying spring fertilisation. Nevertheless, the shrub ability to valorise fertilisation supplies for sustaining growth or nutrient storage restoration required sufficient C-starch quantities in roots. The starch accumulated in roots before late nutrient supply can be used for these objectives.     

菠菜有机生态型基质栽培施肥技术研究

利用农业有机废弃物作为无土栽培基质，以菠菜（Spinacia oleracea L.)为试验对象进行盆栽试验。结果表明，在菠菜无土栽培中，有机无机固体肥配合施用可以显著提高菠菜的品质和产量，其可食部位的维生素C含量明显高于其他肥料处理，而对人体有害的硝酸盐含量则显著低于其他肥料处理。     

山葵无土栽培混合基质的筛选

研究不同复合基质的理化性质及其对山葵生长发育的影响。结果表明,3种处理以苇末:蛭石:沙=1:2:1复混而成的基质理化性质最好,植株叶绿素含量高,根系活力强,能显著促进山葵的生长和根茎的膨大,缩短山葵的生长周期,提高根茎产量。     

设施草莓无土栽培技术研究(英文)

[目的]建立一套适合我国南方设施草莓无土栽培管理技术方法。[方法]对设施草莓无土栽培的品种、基质配方、栽培模式及营养液配方等进行筛选和优化。[结果]花兰第、红宝、福莓1号更适宜福建地区设施草莓无土立体栽培;基质以椰丝:菇渣:泥炭土体积比为2∶2∶1较优;营养液中Ca(NO3)2·4H2O、KNO3、(NH4)2HPO4、MgSO4·7H2O、NH4NO3的含量分别为280、303、62、246、80 mg/L时果实产量及品质最好;3种栽培模式中管道"A"形栽培种植密度大,空间利用率高,产量高,而且采摘更方便,最具有观赏性。[结论]该研究可为我国南方设施草莓无土栽培生产提供指导。     

无土栽培营养液废液循环利用研究进展

根据无土栽培营养液废液的几个处理阶段归纳了紫外线、臭氧、加热、沙滤和综合灭菌等多种营养液废液灭菌方法;活性炭和纳米TiO2催化2种植物自毒物质去除方法以去除植物自身所排出的有机酸等毒性物质;几种温度、养分等在线监测和调配装置;以及植物营养梯级吸收利用、鱼菜共生水产养殖的后续利用方法,最后对营养液废液利用的研究进行展望,旨在为今后有效利用无土栽培营养液废液研究提供参考,减少营养液废液对环境的污染。     

无土栽培新模式--营养液梯级利用初探

总结了中国无土栽培发展现状,以及存在栽培和生态环境的问题,并提出了一种新型的栽培模式—营养液梯级利用模式。阐述了营养液梯级利用模式的原理和初步的试验结果,论述了可行性,并对存在问题和研究方向进行了叙述。