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土壤p
相关语句
  soil p
     4 principal components are respectively generalized (1) soil P soil exchangeable Ca and soil microelement;
     这4个主成分分别概括为(1)土壤P、土壤交换性Ca以及土壤微量元素因子;
短句来源
     Pot and field trials were made to study the effects of lanthanum (La) and mixtures of rare earths (REs) on the distribution of P forms in the rhizosphere soil, P uptake and its translocation in maize plant.
     以潮土为例,采用混合氯化稀土和氯化镧,利用根袋法进行盆栽试验,探讨了稀土对玉米根际土壤P形态分布的影响,同时结合大田试验,分析了稀土施加后植株P吸收与运移。
短句来源
     The concentration and distribution of P in grains and stalks of sorghum, maize and soybean and the harvested P from producing each unit of grains are markedly influenced by soil P condition and crop growing status.
     土壤P供应状况及作物生长好坏可明显影响高粱、玉米、大豆籽实及秸秆中的P浓度、P在籽实及秸秆中的分配比和形成单位籽实产量的P收获量。
短句来源
     Soil OM and NH_4~+-N presented strong spatial dependence, and soil P,K, Ca, Mg and S moderate spatial dependence. Isoline maps of soil nutrients indicated that spatial distribution of OM was similar to gradual change of soil texture;
     土壤各养分的空间变异结构有较大区别,土壤OM及NH4+-N的变异具有强烈空间相关性,土壤P、K、Ca、Mg和S养分含量的变异为中等空间相关性。
短句来源
     Long-term high input of P to the soil has resulted in elevated levels of soil P and increased potential of P loss from the soil.
     土壤长期过量的P肥(包括化肥和有机肥)投入导致土壤P素水平的提高,从而加大了土壤P素流失的风险。
短句来源
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  soil phosphorus
     This paper reviewed the research on nutrition genetics and its genetic improvement of forest tree, including genotype differences of exploiting soil phosphorus, mechanism of adaptation to lowphosphorus stress, genetic control of phosphorus efficiency, screen and selection of germplasm for lowphosphorus tolerance.
     本文结合国内外植物营养遗传和改良研究成果,就林木有效利用土壤P素的基因型差异、对低P胁迫的适应机理、P效率的遗传控制、耐低P种质资源筛选和新品种培育等进行述评。
短句来源
     The nutrient budget of fertilization models under different treatments was calculated using data from a field experiment over the period of 1985~1999.The results indicated that application of nitrogen fertilizer accelerated a large deficit of soil phosphorus, and the use of nitrogen and phosphorus accelerated the deficit of potassium.
     计算了 1985~ 1999年试验期间各模拟施肥模型的作物移出养分量和施肥输入养分量 . 结果表明 ,施用N肥可加剧土壤P收支赤字 ,而施用N、P肥则加剧土壤K收支赤字 .
短句来源
     However, maintaine higher soil available phosphorus, it was not sufficient just to balance the budget of soil phosphorus, and more phosphorus fertilizer application was needed .
     不过 ,在本例中欲保持较高的土壤有效P水平 ,恐需在平衡土壤P收支基础上适当增加P肥施用量 .
短句来源
     Thus, the application of rare earths at high dosages can influence the availability of soil phosphorus, not only by affecting P adsorption but also possibly the transformation of P forms in soil.
     因此,高剂量稀土施加不仅影响土壤P的吸附性能,而且可能会影响土壤P形态转化来改变P的生物有效性。
短句来源
     Fourth,the path analysis showed that the content of soil phosphorus had negative effect on the content of total saponin in the leaves of C. chinensis,while the content of soil nitrogen had positive effect. The organic matter,altitude and soil pH value also had positive effect.
     (4)通径分析显示,土壤P含量对夏蜡梅叶片总皂甙含量起负相关作用,土壤N含量起正相关作用,有机质、土壤pH值、海拔高度也起正相关作用。
短句来源
  “土壤p”译为未确定词的双语例句
     The result shows: seen from soil phosphorous description statistics,the content of R08_C06 nutrient is relatively high,unanimous basically in other four districts;
     结果表明:从土壤P素的描述性统计上看,R08_C06养分含量较高,其他4个区基本一致;
短句来源
     The available heavy metals of Cd, Zn and Pb in soil significantly negatively correlated with soil pH ( R 2: 0.78 *** -0.84 *** ). The contents of Cd, Pb and Zn in pakchoi positively correlated with their available contents in soil ( R 2: 0.45 ** -0.86 *** ).
     土壤有效态 Zn、Cd、Pb含量与土壤 p H呈极显著的负相关 (R2为 0 .78* * * -0 .84* * * ) ,与小白菜茎叶 Cd、Pb、Zn的含量则呈极显著正相关 (R2 为 0 .45 * *-0 .86* * *) .
短句来源
     (6) Double sieving stepwise regression analysis showed the corrections between ∑REE, ∑Ce and Fe 2O 3 in soils were extremely significant, the corrections between ∑Y and soil pH value, silt, physical clay were significant.
     (6)双重筛选逐步回归分析表明 ,∑ REE、∑ Ce与土壤 Fe2 O3相关极显著 ,∑ Y与土壤 p H值、粉砂粒、物理性粘粒相关显著 ;
短句来源
     Geo-statistics analysis of these data demonstrated that spatial variability of soil total P, Bray-P, CaCl_2 extractable P were obvious, and the high-P fields appeared at the shores of Zhudu, and Linzhuang harbors.
     地统计学分析表明:土壤P(全P、Bray P、CaCl2浸提水溶P)呈明显空间变异,土壤高P区出现在朱渎港、林庄港两村庄附近.
短句来源
     Relationships between the degree of the P saturation (DPS) were linear, the correlation coefficients were ranged from 0.639 to 0.789 for Fluvo-aquic s oils.
     土壤P饱和度(DPS)和各种提取方法所测定的P的含量之间的相关系数从0.639到0.789。
短句来源
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  soil p
The improvement of soil P and K availability in the mixed stand is concluded.
      
The results showed that all soil P fractions and phosphomonoesterase activities decreased with soil depth at both sites except that labile organic P under the plantation was constant with soil depth.
      
Relationships between sorption parameters and soil matrix properties, rates and mechanism of the adsorption process and soil P fractions were also investigated.
      
coronarium showed no or very low levels of infection even at very low soil P content (4 ppm), while in M.
      
sativa the highest soil P level (20 ppm) was associated with the lowest percentage of infection.
      
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  soil phosphorus
On single occasions, soil phosphorus and nitrogen were significantly negatively correlated with P.nanus populations, and it is suggested that these associations were mediated through host plant abundance.
      
Results of soil phosphorus independent of method and soil organic matter by loss-on-ignition were generally unreliable.
      
Low soil phosphorus (P), however, may limit vegetation responses to increased N inputs.
      
Interaction of the vesicular-arbuscular mycorrhizae of maize with extractable soil phosphorus levels and nitrogen-potassium fert
      
Soil phosphorus dynamics in cropping systems managed according to conventional and biological agricultural methods
      
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The regression analysis results of rate of fertilizer, amount uptaken by crops and accumulation of soil nutrients in the localized trial of fertilizers on wheatcorn on yellow fluvo-aquic soils during 1981—1986 showed that 8.76% of chemical fertilizer-N and 42.54% of organic fertilizer-N entered into soil N pool, 17.61% of chemical fertilizer-P and 17.20% of organic fertilizer-P into soil available P pool, and 4.5% of chemical fertilizer-K and 2.3% of organic fertilizer-K into soil available K pool. Chemical...

The regression analysis results of rate of fertilizer, amount uptaken by crops and accumulation of soil nutrients in the localized trial of fertilizers on wheatcorn on yellow fluvo-aquic soils during 1981—1986 showed that 8.76% of chemical fertilizer-N and 42.54% of organic fertilizer-N entered into soil N pool, 17.61% of chemical fertilizer-P and 17.20% of organic fertilizer-P into soil available P pool, and 4.5% of chemical fertilizer-K and 2.3% of organic fertilizer-K into soil available K pool. Chemical fertilizers tended to increase in organic matter content of the soils, while significantly good effect of organic fertilizers was found on supplementing soil nutrients such as P and K and improving soil physical properties. Combined application of chemical and organic fertilizers was effective both in promoting soil fertility and raising crop yield.

1981—1986年在黄潮土上的小麦—玉米肥料定位试验,对肥料用量、作物吸收量和土壤养分积累量的回归分析结果:化肥N和有机肥N有8.76%和42.54%进入土壤N库;化肥P和有机肥P有17.61%和17.20%进入土壤速效P库;化肥K和有机肥K有4.5%和2.3%进入土壤速效K库。化肥对土壤有机质含量略有增加趋势,有机肥对补给土壤P、K养分,改善土壤物理性状有明显效果。有机无机配合施用具有培肥、增产两方面的作用。

The concentration and distribution of P in grains and stalks of sorghum, maize and soybean and the harvested P from producing each unit of grains are markedly influenced by soil P condition and crop growing status. A better soil P supply and better crop growth can induce a higher P concentration in grain, larger ratio of grain P/stalk P and more P consumption for producing each unit of grain yields.

土壤P供应状况及作物生长好坏可明显影响高粱、玉米、大豆籽实及秸秆中的P浓度、P在籽实及秸秆中的分配比和形成单位籽实产量的P收获量。P供应充分,作物生长良好(产量高),籽实中的P浓度高,籽实P/秸秆P的分配比大,每形成单位籽实消费的P量高。

This paper discusses the varying laws of soil water and nutrients in thecase of different fertilizer conditions thereby to reveal the effects of water and fertilizerand its inter-reaction upon crop nutrient uptakes,moisture utilization and growth anddevelopment. The results show that under the rainfall conditions in the experimentalarea,yield increase by fertilizers is in the dominant place. Increasing N fertilizer can notonly improve crop N nutrient level but also promote P uptakes by crops. Increasing P ap-plication...

This paper discusses the varying laws of soil water and nutrients in thecase of different fertilizer conditions thereby to reveal the effects of water and fertilizerand its inter-reaction upon crop nutrient uptakes,moisture utilization and growth anddevelopment. The results show that under the rainfall conditions in the experimentalarea,yield increase by fertilizers is in the dominant place. Increasing N fertilizer can notonly improve crop N nutrient level but also promote P uptakes by crops. Increasing P ap-plication is helpful to both N uptakes and P level improvement. N and P fertilizer can in-crease water consumption by winter wheat in the previous and posterior growing stagesthereby to boost the tillerings and grain yield increase. Raising soil water potential canincrease crop N uptakes and strengthen crop water use efficiency. Therefore, wheattillerings and grain weight are closely related to soil water. In the case of water stress,the N translocation is grains in blocked,and N tends to accumulate in the leaves,stemsand root parts with N reduction in grains. As far as winter wheat growing in rainfed landis concerned,yield increase by water becomes apparent with the improvement in N level.The optimal N application is improved by the optimal water supplies.

探讨了旱地农田不同水肥条件下土壤水分和养分的变化规律,揭示了水和肥及其相互作用对作物养分吸收、水分利用以及生长发育的影响。结果表明,本试验区降水条件下,肥的增产作用占首位。增施N既提高了作物N营养水平,又促进了P的吸收;增施P有利于N的吸收,并可提高土壤P素水平。此外N肥和P肥可分别增强小麦生育前期和后期的耗水,从而促进分蘖和籽实增重。提高土壤水势既增加了作物对N的吸收,又加强了作物对水分的利用,小麦分蘖及籽粒重与水分关系密切。水分不足时,N向籽粒中的转移即会受限,N趋于在基叶和根部中累积,而籽粒中含N量相对减少。对于生长在旱季的小麦来说,水的增产作用是随着施N水平的提高而变得明显,N的适宜用量亦随供水量的增加而提高。

 
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