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soilless cultivation
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  无土栽培
     Purification of Liwahe creek which belonged to a eutrophic water body was studied by means of soilless cultivation techniques on artificial substratum from may, 1992 to March, 1998. In the static purification test, the removal rate of TN and TP with Ipomoea aquatica were 81.32% and 71.34% from May to October, respectively.
     在富营养化水体中 ,利用人工基质无土栽培水生经济植物净化水质的静态试验结果表明 ,在 5月~ 10月间 ,水蕹菜对TN、TP的去除率分别为 81.32 %和 71.34% ;
短句来源
     Influence of pH in Soilless Cultivation on the Growth and Mineral Nutrient of the Seedlings of Pistacia chinensis
     无土栽培营养液pH值对黄连木幼苗生长及营养元素吸收的影响
短句来源
     Ecobreeding of Hamimelon and Soilless Cultivation of Organic Ecotype
     哈密瓜南移东进生态育种与有机生态型无土栽培技术研究
短句来源
     This experiment goal is to optimize the best soilless substrate of pot-strawberry, adapt pot-strawberry factorization production technical system, provide the practice and the theory basis for the correlation gardening plant soilless cultivation research and the factorization production.
     试验目的为筛选出最佳盆栽无土草莓基质,适应盆栽草莓工厂化生产的技术体系,为相关园艺植物无土栽培技术研究和工厂化生产提供实践和理论依据。
短句来源
     soilless cultivation technique with porous ceramic tubes and porous ceramic particles was utilized in the growth system.
     利用多孔管和多孔陶瓷颗粒无土栽培技术培养。
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  基质栽培
     Feasibility of waste mother liguor of monosodium glutamate used as nutrition solution for soilless cultivation
     味精废母液作基质栽培营养液的可行性初探
短句来源
  “soilless cultivation”译为未确定词的双语例句
     Study on Soilless Cultivation and Fertilizaion of Petunia hybrida
     矮牵牛无土育苗与施肥的研究
短句来源
     A Study on the Selection of Nutrient Solution for the Production of Virus-free Potato Militubers in Soilless Cultivation
     无土生产马铃薯微型种薯营养液的筛选研究
短句来源
     Effect of Different Nutrient Solution on Florists Soilless Cultivation of Senecio cruentus
     几种不同营养液在瓜叶菊无土育苗上的应用效应
短句来源
     The preservation capacity of water and fertility of several soilless cultivation substrates for Panax quinquefolium was compared in a large area.
     通过较大面积的比较试验,研究了西洋参无土裁培基质的保水保肥性。
短句来源
     Fertilizer demands of Petunia hybrida under soilless cultivation and fertilization were studied. A related mathematical model was established and the most appropriate plan for economical fertilization was posed.
     采用三因素二次通用旋转组合回归设计,定量研究了无土育苗条件下矮牵牛苗期需肥规律,建立了肥料效应函数模型,并提出最佳经济施肥方案。
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  soilless cultivation
Cultural practices such as cropping frequency, no tillage, and soilless cultivation, as well as edaphic factors seem to determine these rhizosphere interactions.
      
Due to different problems, the soilless cultivation is not so widespread.
      


The purpose of this research was to study the effects of various degrees of oxygen concentration in the rhizosphere on the growth and metabolism of rice seedlings cultivated in water with different oxygen content under soilless condition in a greenhouse) the results were as follows:1. The root dry weight, root length and ratio of root to shoot varied with the oxygen concentration of water, but evidence of increase of shoot length and its dry weight has not been found.2. Under condition of soilless cultivation...

The purpose of this research was to study the effects of various degrees of oxygen concentration in the rhizosphere on the growth and metabolism of rice seedlings cultivated in water with different oxygen content under soilless condition in a greenhouse) the results were as follows:1. The root dry weight, root length and ratio of root to shoot varied with the oxygen concentration of water, but evidence of increase of shoot length and its dry weight has not been found.2. Under condition of soilless cultivation in a greenhouse, the nutrient substance in the endosperm of the rice grain was generally transformed into organic matter of the seedlings during growth and development. Our experiement showed that the transformation ratio varied with the oxygen content of water used for cultivation.3. Preliminary study has also been made on the metabolism of the roots of rice seedlings under present experimental condition, the results of which showed that in case of decreasing oxygen concentration there was an accumulation of amino acids and malic acid and lowering of total protein content,which indicated that the deficiency of oxygen supply weakened the synthetic process of protein in the roots.

本文在模拟水稻温室育苗的条件下,以不同含氧量的去离子水作为培养液,研究了根系环境中不同含氧量对水稻幼苗生长的影响,并对其内部代谢活动的变化作了初步的探讨。研究结果如下: 1.在温室无土育苗的条件下,根的干物质重、根长和根冠比随着根系环境中的含氧量的增加而增加,但水中的含氧量对株高和茎叶干物质重的影响不明显。 2.在温室无土育苗的条件下,胚乳的贮藏养分转变为水稻植株的有机物质的转化率随着水中的含氧量的增加而有所增加。 3.对根系内部代谢活动的初步研究表明,当根系环境中水的含氧量降低时,水稻幼苗根中出现氨基酸和苹果酸的积累,而粗蛋白含量下降。说明根系环境中含氧量减少时,三羧酸循环的运转受阻,根内蛋白质合成减弱。

Ipomoea aquatica Forsk was cultivated on the surface of wastewater discharged from a filature mill. In the process of removal of organic materials from the wastewater, Ipomoea aquatica Forsk showed a pretty good adaptability to the wastewater in static, dynamic .and pilot experiments. 625 kg of Ipomoea aquatica Forsk could be gathered in ten days in an area of 667 m2 during the period of time from June to July in 1988. The results show that the application of the technique of soilless cultivation of Ipomoea...

Ipomoea aquatica Forsk was cultivated on the surface of wastewater discharged from a filature mill. In the process of removal of organic materials from the wastewater, Ipomoea aquatica Forsk showed a pretty good adaptability to the wastewater in static, dynamic .and pilot experiments. 625 kg of Ipomoea aquatica Forsk could be gathered in ten days in an area of 667 m2 during the period of time from June to July in 1988. The results show that the application of the technique of soilless cultivation of Ipomoea aquaiica Forsk to ecological engineering of filature wastewater can not only purify wastewater, but also produce economic benefit. And it may be combined with the technique of soilless cultivation of loliurn, multiflorum lam so as to form a complete set of wastewater treating method by plants all the year round.

在缫丝工业排放废水的水体中,无土栽培水蕹菜.经静态、动态和现场试验,水蕹菜在去除废水有机污染物的过程中,在较强的适应性.在6—7月间,水蕹菜在667m~2水面上10天的产量为625kg.应用水蕹菜无土栽培技术于缫丝废水资源化生态工程之中,既可以净化污水,又具有经济效益。认为该项技术可与黑麦草无土栽培技术衔接使用,形成全年运转的配套植物净化污水的方法.

The preservation capacity of water and fertility of several soilless cultivation substrates for Panax quinquefolium was compared in a large area. The data indicate that vermiculite mixed with stud (volume 1:1) is the most suitable soilless substrata for P. quinquefolium, for it is loose and features good preservation of fertility, water retaining, drainage, and air permeability Timely analysis of nutrient contents in the substrates duriog cultivating period may serve as a guideline for correct application...

The preservation capacity of water and fertility of several soilless cultivation substrates for Panax quinquefolium was compared in a large area. The data indicate that vermiculite mixed with stud (volume 1:1) is the most suitable soilless substrata for P. quinquefolium, for it is loose and features good preservation of fertility, water retaining, drainage, and air permeability Timely analysis of nutrient contents in the substrates duriog cultivating period may serve as a guideline for correct application of fertilizer.

通过较大面积的比较试验,研究了西洋参无土裁培基质的保水保肥性。指出蛭石和风化砂以1:1的比例混合可做西洋参适宜的栽培基质。此外,在作物栽培过程中,应适时分析基质中的养分含量,以此指导施肥。

 
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