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   土壤速效n 的翻译结果: 查询用时:0.72秒
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土壤速效n
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  soil available n
     The spatial correlation of N,P,K was low,and the influences from man-made interference,fertilization and some other measures on soil available N,P and K were larger than soil Ca,B,Fe and Mg.
     N、P、K等养分的空间相关性小,人为经营、施肥等措施对土壤速效N、P、K的影响大于Ca、B、Fe、Mg等养分。
短句来源
     The average content of soil available N of layer 0~60 cm gradually increases at the stages of herbage and arbour with vegetation restoration,and the change at the stage of shrub is just the contrary.
     0~60cm土层土壤速效N的平均含量在植被恢复的草本和乔木阶段,随植被的恢复演替而不断增加,在植被恢复的灌木阶段其含量变化则相反。
短句来源
     the change ranges of the content of soil available N of different communities between layer A and layer B is bigger than that between layer B and layer C,and the changes of the content of soil available N in layer A and B is relatively smaller at the early stage of vegetation succession and is relatively bigger at the late stage of vegetation succession, the changes in layer B and C is just the contrary.
     在不同植被群落中,土壤速效N含量在A、B层间的变化幅度大于B、C层次间,并且在植被恢复演替的前期,A、B两土层土壤速效N含量的变化相对较小,后期变化相对较大,而B、C两土层土壤速效N含量的变化则恰恰相反。
短句来源
     There is most significant and positive correlations between soil available N and diversity index of shannon-wiener and richness index of Menhinick,and there is very significant and positive correlations between soil available N and diversity index of simpson and eveness index of Pielou.
     相关分析表明,Menhinick指数和shannon-wiener指数与土壤速效N含量呈极显著正相关(P<0.01),simpson指数和Pielou指数与土壤速效N含量呈显著正相关(P<0.05)。
短句来源
     The effects of CO 2 increased on soil available N depended on soil water status.
     CO2 浓度增高对土壤速效N的影响与土壤水分状况有关。 湿润处理 ,CO2 浓度增加的处理速效N量比当前CO2 浓度的处理低 ;
短句来源
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  soil available nitrogen
     Distribution Characteristics of Soil Available Nitrogen and Its Correlation with Plant Species Diversity in Abandoned Lands in Hilly and Gully Regions on the Loess Plateau
     黄土丘陵沟壑区退耕地土壤速效N的分布特征及其与物种多样性的关系
短句来源
  “土壤速效n”译为未确定词的双语例句
     Soil average content of available N, P, K, Ca, Mg, Mn, Fe, Cu, Zn, B were 17.07, 19.8, 60.7, 811.8, 83.6, 31.4, 35.2, 1.00, 1.54 and 0.21 μg·g -1 respectively.
     土壤速效N、P、K、Ca、Mg、Mn、Fe、Cu、Zn、B等养分平均含量分别为 170 .7、19.8、6 0 .7、811.8、83.6、31.4、35 .2、1.0 0、1.5 4、0 .2 1mg·kg-1。
短句来源
     (3) Correlation coefficients between the biomass and soil indexes follow order: quick acting N、P、K( R =0 860)>soil moisture ( R =0 837)>soil organic matter ( R =0 753)>soil temperature ( R =-0 976)
     (3)玉米地上生物量与土壤速效N、P、K的相关系数为0.860,与土壤水分的相关系数为0.837,与土壤有机质含量的相关系数为0.753,而与地温的相关系数为-0.976。
短句来源
     the percentage of orchards with available N content more than 50 mg/kg was only 29%,the content was relatively low in the rest orchards;
     土壤速效N含量>50 m g/kg的果园仅占29%,含量较高,其余果园土壤中的速效N含量偏低;
短句来源
     The results showed that the soil organic matter in citrus orchards was in relatively high status,and the deficiency rate of available macronutrients N,P,and K was 30.36 %,32.14 %,and 28.57 %,respectively.
     结果表明,土壤有机质含量比较丰富,土壤速效N、P、K缺乏分别为30.36%、32.14%和28.57%;
短句来源
     For western part, the effective N and P showed lower levels with the numbers of 120.0 mg·kg~(-1) and 8.52 mg·kg~(-1).
     湘西烟区土壤速效N、P含量较低,分别为120.0mg. kg~(-1)和8.52mg.
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  soil available n
But the compound effects of soil available N, soil temperature and soil moisture content are significant to every root parameter.
      
Soil available N increment could promote its immobilization by microorganisms.
      
The SOM status studied in this paper includes soil microbial biomass, soil available N, hot water extractable C (HwC) and N (HwN) and soil neutral sugar-C composition.
      
The soil microbial biomass C (MBC) and N (MBN), soil available N, HwC and HwN increased upon application of Ba and Li.
      
No quantitative relationship was observed between application of organic material and MBC, MBN or soil available N.
      
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  soil available nitrogen
The relationships between fluxes (N2O and CH4) and some major environmental factors (temperature, soil water content and soil available nitrogen) were studied.
      
Thus, the increased productivity and corresponding lower soil available nitrogen levels observed in high diversity plots do not lead to faster litter decomposition or faster nitrogen turnover.
      
Annual application of fertilizers for a period of 32 years to coconut resulted in a marked increase in available phosphorus and potassium status in soil, but a marginal change in soil available nitrogen status was observed.
      
To find out a rapid and reliable procedure for estimating soil available nitrogen (N), the standard alkaline-permanganate extraction and its modification to include soil NO3 were evaluated.
      


This paper pointed out the optimum diammonium Phosphate applied amount of wheat plant in fertile soil and also described its relation to soil and plant nutrient. The results indicated that:the phosphate was rich in the soil,the evidence obtained appeared to fit the law of diminishing returns.The applied amount of diatomalum phosphate for maximum yield was approx- Imately 30kg/mu.Under given soil and producing conditions,the optimum amount applied depended on the price ratio(fertilizer/wheat).When the ratio ranging...

This paper pointed out the optimum diammonium Phosphate applied amount of wheat plant in fertile soil and also described its relation to soil and plant nutrient. The results indicated that:the phosphate was rich in the soil,the evidence obtained appeared to fit the law of diminishing returns.The applied amount of diatomalum phosphate for maximum yield was approx- Imately 30kg/mu.Under given soil and producing conditions,the optimum amount applied depended on the price ratio(fertilizer/wheat).When the ratio ranging from 2.6 to 2.0,the optimum applied amount of diammonium phosphate was 12-15kg/mu.As the rates of diammonium phosphate increa- sed,the content of soil available phosphate increased,the soil available N.K arid Cu decreased significantly,and the total N,K,Cu and Zn in plant increased significantly.

研究结果表明,在高磷条件下,磷二铵的增产效果符合报酬递减率;最高产量点的施肥量在30公斤/亩左右;最佳施用量在一定的土壤及生产条件下因肥料价格/小麦价格的比值而异,该比值在2.6—2.0范围内,最佳施用量为12—15.5公斤/亩.土壤速效磷随磷二铵用量增加而提高;而土壤速效 N,K,Cu 则显著降低;植株体内 N,K,Cu,Zn 含量随磷二铵用量增加而明显增加。

The fertilizer trials were conducted in fixed-site of Lou soil in Guanzhong area of Shaanxi province from 1980 to 1990. The results showed that the amoiant & the type of fertilizers effected the developing orentation of soil fertility directly. The effect of mixed application of organic & N P fertilizers on fertilized soil was greatest, because the organic matter & total nitrogen content in top soil increased by average 1%~40% from year to year, the quick-acting N、 P、 K was balance or increase. the bulk density...

The fertilizer trials were conducted in fixed-site of Lou soil in Guanzhong area of Shaanxi province from 1980 to 1990. The results showed that the amoiant & the type of fertilizers effected the developing orentation of soil fertility directly. The effect of mixed application of organic & N P fertilizers on fertilized soil was greatest, because the organic matter & total nitrogen content in top soil increased by average 1%~40% from year to year, the quick-acting N、 P、 K was balance or increase. the bulk density decreased by 0.14~0.15g/cm~3 and the total porosity increased by 10% or so, the respiration intensity increased by 23.9%~90.5% compared with the fertilization N P only, and the number of bacteria, fixing-nitrogen bacteria & Yay fungi increased significantly. Crop yield, which reflects soil fertility level comprehensively, was high & stable——The annual variation of yield was 8%~12% and it was only 1/2~1/3 of no fertilization & only organic fertilizer. The average yield was 792 kg·mu~-1 which was more 132, 200 & 450 kg than N P fertilizers, organic fertilizer & no fertilizer, respectively, Moreover, the crude protein in crop grain increased by 10%~20%. Thus, fertilizing soil & getting high & stable yield as well as good grain quality should adopt the mixed application of organic & inorganic fertilizers.

1980~1990年进行(土娄)土肥料定位试验结果表明,有机肥与氮磷化肥配施的效果最好,耕层土壤有机质、全氮年均相对增加1%~4%,土壤速效N、P、K持平或有所提高;土壤容重降低0.14~0.15g/cm~3,孔隙度增加10%左右;细菌、固氨菌、放线菌增多;作物产量高而稳,年际变异8%~12%,年均亩产792kg,籽粒含粗蛋白10%~20%。

Based on the observations on N 2O emission from rice-wheat rotation systems in Southeast China,its temporal variation and the effects of fertilization,irrigation,temperature,and soil moisture and available N contents on it are discussed. Meanwhile,the difference of CH 4 and N 2O emissions from rice season is analysed. The results show that the amount of N 2O emitted from rice season only accounts for about 30% of the whole rotation cycle.The CH 4 emission increases 26% by keeping flooding in rice season,and...

Based on the observations on N 2O emission from rice-wheat rotation systems in Southeast China,its temporal variation and the effects of fertilization,irrigation,temperature,and soil moisture and available N contents on it are discussed. Meanwhile,the difference of CH 4 and N 2O emissions from rice season is analysed. The results show that the amount of N 2O emitted from rice season only accounts for about 30% of the whole rotation cycle.The CH 4 emission increases 26% by keeping flooding in rice season,and N 2O emission from rice-wheat rotation cycle reduces 13~26%,comparing to normal irrigation.

根据对华东稻麦轮作周期的N2 O排放及其影响因子的连续观测结果 ,分析了N2 O排放时间变化以及施肥、灌溉、温度、土壤湿度和土壤速效N素含量对N2 O排放的影响 ,同时还比较分析了稻田N2 O和CH4排放 .研究结果表明 ,稻麦轮作周期内 ,水稻生长季的N2 O排放量仅占 30 % ,稻田持续淹水可比常规灌溉增加CH4排放量 2 6% ,减少N2 O排放量 1 1~ 2 6% .

 
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