养分浓度

结果表明，合理施用化肥不但增产幅度大，还在一定程度上增加了小麦N、P、K养分浓度。

Results showed that rational use of chemical fertilizer not only increased wheat yield , but also increased N , P and K content in wheat to some extent .

采用控制环境生长室研究了2个密度水平下CO2浓度升高对红桦幼苗干物质分配与营养的影响，并分析了红桦干物质分配与养分浓度的关系。

The effects of elevated CO2 concentration on dry matter allocation and nutrient contents of red birch seedlings were studied under two planting densities in controlled environment chambers .

在林分样地调查分析的基础上，研究了3个不同生长发育时期即未结果期、结果初期和盛果初期锥栗人工林各器官N、P、K、Ca、Mg的养分浓度及其变化。

Based on the sampling analysis , concentration and variation of five elements which are N , P , K , Ca and Mg in different organs for three growth stages of Castanea henryi plantation have been studied .

7.5kg/m2处理的叶片养分浓度最高，其中K、Mn和Zn的浓度与对照的差异达到极显著；

Upmost nutrient concentrations in leaves were found in with mulching of the 7.5kg/m2 treatment , There were significant differences in the K , Mn and Zn concentrations between treatment ;

结果表明，在不同营养液养分浓度下，CO2施肥能增加番茄幼苗生物量的积累，提高生长速度；

The results showed that the elevation of CO_2 significantly accelerated the growing speed and increased the biomass accumulation of the tomato seeding at all sampling periods , but their response to CO_2 enrichment strongly depended on the strength of nutrient supply .

高、低两种养分浓度下，增加NH4~+的供应比例不影响经木质部向地上部运输的钾量，但导致烟株体内钾的循环量明显增加。

As ratio of NH / increased in the solutions at both nutrient levels , the amount of K + transported to shoot via xylem kept stable while that of recycled via phloem ascended within plants .

通过营养诊断的方法确定了三树种容器苗（一年生）的适宜养分浓度和DRIS诊断标准。

Reasonable nutrition concentration and the parameter of DRIS in these three seedlings ( one year ) are determined through the method of nutrition diagnosis .

温度条件对麦田土壤溶液养分浓度的影响

The effects of temperature on the nutrient concentrations in soil solution

对第2～6组日粮养分浓度作适当调整。

Some proper adjustments for nutrient concentrations were made in diets ⅱ~ⅵ .

平作对径流养分浓度影响不大。

Flat against the runoff nutrient concentration has little effect .

同龄树木体内养分浓度近相同。

Trees with same age had almost stable nutrient concentrations .

覆盖提高了杨树叶片养分浓度。

Mulching heightened the nutrient concentrations of poplar leaves .

有机肥用量对玉米体内养分浓度及分配的影响

Effect of different manure application rates on nutrition content and distribution in maize

不同种植模式下的径流养分浓度远低于流失土壤中的养分浓度。

The nutriments saturations of run-off were far lower than that of sediment .

不同的铝胁迫下，不同的养分浓度发挥的缓解作用存在一定的差异。

Under different aluminum stress , different nutrient concentration play relief effect exist certain differences .

施肥对日本落叶松不同根序细根养分浓度的影响

Effects of fertilization on nutrient concentrations of different root orders ' fine roots in Larix kaempferi plantation

试验日粮含高、中、低3种养分浓度，分期配制。

Experimental diets were formulated with high , medium or low nutrient densities for 3 growing phases .

本文用实测资料分析了温度对麦田土壤溶液养分浓度的影响。

Study was conducted to undersdand the effects of temperature on the nutrient concentrations in soil solution .

肥料袋控缓释处理生长季土壤有效养分浓度稳定，而肥料散施处理土壤养分浓度波动大；

Compared to the same amount of disperse application fertilizer being bag-controlled released treatment makes available nutrients stable ;

又之，低铬水平下，盐分对养分浓度和积累的影响程度较轻。

Moreover , low Cr level alleviated the inhibiting effect of NaCl stress on nutrient uptake and accumulation .

坡面流失泥沙悬移质养分浓度均高于推移质中的养分浓度。

The nutrient concentration of bed load of soil ioss was over the sediment load in the slope land .

在矿质养分浓度低于3%时，对微生物的生长有一定的促进作用。

When the concentration of mineral nutrient was less than 3 percent , it had some prompting effect on microorganism .

随施肥时间的延长，养分浓度变小趋于稳定状态，肥料发挥的效力越来越小。

Concentration of nutrient tended to steady state and the effect of fertilizer was smaller and smaller with the time prolonged .

二次降雨过程中径流养分浓度存在显著差异。

However , during the second rainfall , there was notable discrepancy for chemical concentration in runoff from the different conditions .

对鄂南5县（市）毛竹林33样点的叶片养分浓度进行了分析。

The nutrition status of bamboo leaves from 33 samples taken from 5 counties in the south of Hubei Province was analyzed .

调查样点叶片养分浓度差异较大，反映在毛竹林各元素养分变异系数普遍较大，特别是低产竹林。

The result indicates that there is significant difference in nutrient concentration for leaves , which is incarnated by large coefficient of variation , especially by low yield bamboo fields .

指出秸秆还田措施，能减少径流泥沙的产生，但是径流中营养物质养分浓度增加，若遇到夏季强降雨会造成较大养分流失。

Points out that straw counters-field measures , can reduce the runoff sediment production , but runoff nutrients increasing concentration of nutrient , if encounter summer rainfall can cause greater nutrient losses .

顺坡种植油菜-花生处理，坡面流失泥沙钾、磷养分浓度高于休闲裸坡处理。低径流量中径流的养分浓度大，应注意土壤系统结构培育和优化，尽量减少养分流失。

The nutrient concentration of runoff in low runoff is higher and it shall pay attention to the structural incubation and optimization of soil system for reducing nutrient loss as less as possible .

以沾化冬枣为试材对袋控缓释肥进行大田试验，结果表明：肥料袋控缓释处理生长季土壤有效养分浓度稳定，而肥料散施处理土壤养分浓度波动大；

As materials , the results showed that : Soil available nutrients concentration of fertilizer being bag controlled release application treatments ( BCRT ) was more steadier than that of fertilizer being spread application treatments ( ST );

耕作方式对径流养分浓度的影响表现在，与顺垄相比，横垄和横分能增加氮素、磷素和钾素的地表径流浓度，但会降低壤中流氮素浓度。

The impact of tillage methods on runoff nutrient concentrations performance showed that : Compared to the ridged contour and cross sub-surface , smooth ridge increased the content of nitrogen , TP and potassium in runoff , but reduced the concentration of nitrogen in soil runoff .