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   非交换性钾 的翻译结果: 查询用时:0.562秒
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非交换性钾
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  non exchangeable k
     The better extracting method and kinetic model for describing the release and rate of soil non exchangeable K were discussed with Elovich, Second order kinetic models by 0 50 mol· L -1 HNO 3, 0 01 mol·L -1 oxalic acid and H resin successive extraction under constant temperature and pot exhaustion of ryegrass.
     采用Ca2 + 饱和土壤的 0 50mol·L- 1硝酸、0 0 1mol·L- 1草酸和氢质阳离子交换树脂恒温连续提取法 ,利用Elovich和二级动力学模型 ,结合生物吸钾试验 ,研究探讨了描述土壤非交换性钾释放及其速率较为理想的连续提取法及其动力学模型。
短句来源
     The results showed that Elovich equation fitted by the data of H resin extraction perfectly described the release and rate of non exchangeable K.
     研究结果表明 ,氢质树脂提取法的Elovich模型描述非交换性钾释放及其速率的效果较为理想 ,拟合方程的相关系数达极显著水平(r =0 982~ 0 996 ) ;
短句来源
     The results also showed that the release rates of non exchangeable K in illitic soils, including soil 2, 3 and 8, were much higher than those in kaolinitic and montmorillonitic soils.
     以伊利石为主的 2、3和 8号土壤非交换性钾释放速率明显高于其它以高岭石或蒙脱石为主的供试土壤
短句来源
     Nitrogen application(0~150mg/kg) increased the release of soil potassium and the utilization of non exchangeable K and mineral K. In accordance with the total amount of net K uptake by rice, the contribution of non exchangeable K and mineral K accounted for 80 3%.
     施氮 (N 0~ 150mg/kg)促进 4个紫色水稻土钾素的释放 ,提高水稻对非交换性钾和矿物钾的吸收利用 ,使矿物钾和非交换性钾的贡献占植株吸钾的 80 3% ,速效钾仅为 19 7%。
短句来源
     Contibution of non exchangeable K and mineral K to K uptake by four rice cultivars accouted for 66 9% after the application of nitrogen fertilizer on average. The maximun of net K uptake by four rice cultivars were obtained at medium nitrogen level (N 150mg/kg).
     施氮后4个品种水稻吸自非交换性钾和矿物钾量平均占植物吸钾量的 66 9% ,以施中氮 (N 150mg/kg)时植株吸钾量最高 ;
短句来源
  non-exchangeable k
     The exchangeable K and non-exchangeable K increase in the sequence as J3P> J3S>J2S>K1C and K1C >J3P> J2S> J3S respectively, whereas mineral K decrease in the sequence as J3P> J3S >K1C >J2S.
     交换性钾、非交换性钾增加顺序分别为 :J3P >J3S >J2 S >K1 C及K1 C >J3P >J2 S >J3S ; 结构钾降低的顺序为 :J3P >J3S >K1 C >J2 S。
短句来源
     The total K contents of the cultivated Brown earth in Liaoning Province range from 0.69% to 2.18%. The amount of rapidly available K, slowly available K and easily release non-exchangeable K are 85.5-24.7.5ppm, 177.5-1227.5ppm and 237.5-1752.5ppm, respectively.
     研究了辽宁省七种主要成土母质发育的耕地棕壤一些供钾潜力指标:土壤全钾含量、速效钾含量、缓效钾含量和易释放非交换性钾含量分别为0.69%-2.18%、85.0-247.5ppm、177.5-1227.5ppm和237.5-1752.5ppm;
短句来源
     The amount ot K absorbed by winter wheat was most from the non-exchangeable K of the soil that can not be extracted with 1mol/L hot HNO3 was the largest.
     冬小麦吸收的钾主要来自于1mol/L热HNO3不能提取的非交换性钾
短句来源
     The relationships between the content of soil available N,available K,non-exchangeable K and the wheat root activities reached significant or very significant level during wheat growth,this illustrated that the availability of soil N and K was an important factor that affected the wheat root activities.
     土壤速效氮、速效钾、非交换性钾含量与小麦根系活力呈显著或极显著正相关,说明土壤N、K养分有效性的高低是影响小麦根系活力的重要因素。
短句来源
     The relationships between the content of soil available N, available K, non-exchangeable K and the wheat root activities reached significant or very significant level during wheat growth.
     土壤碱解氮、速效钾、非交换性钾含量与小麦根系活力呈显著或极显著正相关,说明土壤N、K养分有效性的高低是影响小麦根系活力的重要因素。
短句来源
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  “非交换性钾”译为未确定词的双语例句
     Soil Potassium is usually divided into water soluble.
     土壤钾按其存在形态分为水溶性钾、交换性钾、非交换性钾和矿物态钾,而交换性钾又可进一步分为表面吸附的钾和特殊吸附的钾。
短句来源
     Results indicated that the total K in the tested purple paddy soils was low to medium ranged from 1 29% to 2 62%, and mineral K accounted for 96 82% while quickly availble K and slowly available K only accounted for 0 62% and 2 56%, respectively on average. The potassium supplying power of the tested soils showed the following order neutral purple paddy soil>calcareous purple paddy soil>acid purple paddy soil.
     结果表明 ,4个紫色水稻土供钾能力均属中下水平 ,全钾含量为 1 2 9%~ 2 62 % ,其中矿物钾量平均占 96 82 % ,速效钾和非交换性钾仅平均占 0 62 %和 2 56% ,土壤供钾能力以中性紫色水稻土 >石灰性紫色水稻土 >酸性紫色水稻土。
短句来源
     (2) The amount of 1 mol/L HNO_3-extractable K was unsuitable to evaluate soils exhausted as it was higher than that pre-exhausting and had no correlation or negative correlation with the amount K uptake by rice.
     (2)1mol/L沸HNO3法提取的非交换性钾含量在耗竭后高于耗竭前的水平,与水稻吸钾量相关性很小或呈负相关,不适宜用来评价耗竭土壤。
短句来源
     Its release quantity and velocity were higher obviously than the condition of 25 ℃ and its releasing time kept longer.
     总体来说,冻融交替处理可以加速土壤中的非交换性钾素的释放,无论是在释放量上,还是在释放速度上,都明显高于25℃恒温培养的处理,并且其释放时间持续长。
短句来源
     It was shown that after 8 years' rice-wheat rotation (16 crops),total K in the top soil (0cm~20 cm layer) was almost equal to that in the subsoil(20cm~40cm layer),and the contents of water soluble K,non-specifically adsorbed K and specifically adsorbed K were higher in the surface soil than in the subsoil.
     结果表明 :经 8年 16季稻麦轮作后 ,土壤全钾含量 0cm~ 2 0cm土层与 2 0cm~ 40cm土层基本持平。 土壤水溶性钾、非特殊吸附态钾、特殊吸附态钾、非交换性钾含量呈现 0cm~ 2 0cm土层高于 2 0cm~ 40cm土层的分布特点。
短句来源
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  non-exchangeable k
Extraction with boiling 1 M nitric acid at 1:100 soil solution ratio for 20 min was used to determine available non-exchangeable K.
      
Raumai soil with high non-exchangeable K and Milson soil with low non-exchangeable K were incubated with two species of earthworm, Aporrectodea caliginosa and Lumbricus rubellus, for 8 weeks.
      
The nitric acid-extractable K of the soil and casts was not markedly different for either soil type, but available non-exchangeable K values were significantly higher for the casts of L.
      
The concentration of K in the soil solution at zero change of non-exchangeable K (Co) was determined at 20°C and 50°C for six topsoils of widely different clay mineralogy.
      
When EUF3 was compared with fractions of soil-K containing increasing amounts of non-exchangeable K (=selectively adsorbed K), the R2 values decreased with increasing quantities of non-exchangeable K.
      
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From the determination of exchangeable and non-exchangeable potassium ofthe different soils in Jiangsu Province and the experiments of potash fertilizationon cotton,it was preliminarily established that bleached whitish soils in ChenjiangDistrict,the sandy and sandy loom soils along the Yangtze River and the sandysoils in Xuzhow-Huaiying District are deficient in available potassium(exchange-able K 10—20 jin/mu,non-exchangeable K 65—200 jin/mu),the K supply ofthe permeable paddy soils in Suzhow Distriet is also...

From the determination of exchangeable and non-exchangeable potassium ofthe different soils in Jiangsu Province and the experiments of potash fertilizationon cotton,it was preliminarily established that bleached whitish soils in ChenjiangDistrict,the sandy and sandy loom soils along the Yangtze River and the sandysoils in Xuzhow-Huaiying District are deficient in available potassium(exchange-able K 10—20 jin/mu,non-exchangeable K 65—200 jin/mu),the K supply ofthe permeable paddy soils in Suzhow Distriet is also low(exchangeable K 18—24jin/mu,non-exchangeable K 60—80 jin/mu),and the soils in The Lower RiverBasin and along the coast line are rich in K supply(exchangeable K 40—70 jin/mu,non-exchangeable K 200—300 jin/mu).The results from the cotton potash fertilizaton during 1973—75 had shownthat when the amounts of exchangeable K were less than 25 jin per mu,theapplication of potash fertilizer had a marked eliect in increasing cotton yield.Potash fertilization lessened the wilting disease and prevented the prematurity.Potash fertilization lessened the root diseases during the seedling stage toensure the stand in the field.Potash fertilization increased the boll wight,promoted boll opening and im-proved the fibre quality.The diagnostic technique of potassium on cotton during the square stage wasa very useful tool to decide whether the potash fertilizer should be side-dressed.

根据我们对我省不同土壤交换性钾和非交换性钾的测定以及棉花的钾肥试验,初步确定我省白土类型土壤,沿江沙土和沙壤土,徐淮地区沙土为缺钾土壤(交换性钾含量10—20斤/亩,非交换性钾65—200斤/亩),苏州地区黄泥土钾的供应也不充足(交换性钾18—24斤/亩,非交换性钾60—80斤/亩),里下河地区湖积物发育的土壤和滨海地区土壤钾的供应丰富(交换性钾40—70斤/亩)非交换性钾200—300斤/亩)。三年棉花钾肥试验指出,当土壤交换性钾含量低于25斤/亩时,施用钾肥有显著增产效果。土壤含钾水平愈低,钾肥增产效果愈显著。钾肥能减轻红叶茎枯病,防止早衰。钾肥能减轻苗期病害,保证壮苗全苗。钾肥能增加铃重,促使棉铃吐絮畅,棉花品质好。蕾期田间棉株钾素营养诊断,可作为棉花追施钾肥的参考。

In this paper, pot and field experiments with the graminaceous crop-rice as the indicator crop were carried out by using chemical methods and electroultra-filtration technique to study the relationship between the uptake of potassium by rice and potassium status of the different soils. Author′s preliminary experiment results have already proved that nonexchangeble potassium (slowly available potassium)is the main source of K taken up by rice. According to the uptake characteristic of potassium by barley and...

In this paper, pot and field experiments with the graminaceous crop-rice as the indicator crop were carried out by using chemical methods and electroultra-filtration technique to study the relationship between the uptake of potassium by rice and potassium status of the different soils. Author′s preliminary experiment results have already proved that nonexchangeble potassium (slowly available potassium)is the main source of K taken up by rice. According to the uptake characteristic of potassium by barley and rice, we have already suggested that extraction with cold 2N HNO_3 solution can beused as a rapid method for determining available potassium for the paddy soils. It is a simple and convenient method. This study indicates that when cold 2N HNO_3 extractable potassium in the paddy soil is less than in 10-12mgK/100g soil it can be considered soil deficient in available K.

本文以禾谷类作物(水稻)为对象进行盆栽和田间试验,用化学方法和电超滤法研究土壤供钾状况与水稻吸钾间的关系。作者初步试验结果已证明,非交换性钾(即缓效性钾)是水稻钾素的主要给源,根据禾谷类作物(稻、麦)的吸钾特点,我们提出用冷的2N HNO_2溶液提取法有可能作为测定水稻土有效钾的快速而简便的方法。本研究证明水稻土有效钾量小于10—12mgk/100克土为缺钾土壤。

This study dealt with the fixation and release of K from some different soils by using conventional chemical extraction methods, pot exhaustion and incubation experiments. Under the constant moisture incubation, the ability of fixing potassium varied with soils to a considerable extent and the absolute content of fixed K increased with the adding of potassium applied. After six successive cropping of rye in the greenhouse, the exchangeable K in soils reduced to a minimum value which then did not decrease any...

This study dealt with the fixation and release of K from some different soils by using conventional chemical extraction methods, pot exhaustion and incubation experiments. Under the constant moisture incubation, the ability of fixing potassium varied with soils to a considerable extent and the absolute content of fixed K increased with the adding of potassium applied. After six successive cropping of rye in the greenhouse, the exchangeable K in soils reduced to a minimum value which then did not decrease any more. This minimum value differed with the soils and was considered as a representation of soil buffer capacity to K in the solution during the growth period and as a release rate of soil K.Results also showed that the release of interlayer K (non-exchangeable K)played an important role in potassium supply to the plants.

本文用一般化学浸提法、盆栽耗竭试验和恒湿培养试验,研究了几种不同土壤中钾的固定与释放规律。结果表明,在恒湿条件下不同土壤固钾能力相差很大,固定钾的绝对量随施钾量的增加而增加。黑麦草连续收割6次后,土壤交换性钾降到最低值,尔后不再下降,该最低值因土壤不同而异。它表示了在作物生长过程中土壤对溶液中钾的缓冲能力的即土壤钾的释放速率。同时也说明了层间钾(非交换性钾)的释放对作物钾素供应起了重要作用。

 
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