For example, an invading nonnative plant could alter the quantity of leaf litter production, which would alter nutrient contributions to the soil.
例如，外来植物的入侵可能会改变落叶的数量，从而改变对土壤的营养贡献。
Metal content in tobacco leaf primarily is driven by the metal content of the soil in which it is grown, rather than resulting from processing.27.
烟叶中的重金属含量是由其产生的土壤带入的，而不是在生产加工过程中人为添加。
Most of the radioactive particles are in the soil rather than in the flammable leaf litter and trees, he explains.
他解释说，大部分放射性物质存在于土壤中而不是易燃的树叶和树木中。
Faster leaf decomposition and biomass growth have created a much more fertile soil on once sandy land, which was not always suitable for cultivation.
杨树较快的树叶分解速度和生物量增长可大大提高曾经是不宜耕作的沙质土的土壤肥力。
Organic material like compost or leaf mulch can help onions grow in heavy soil.
堆肥或护根物一类的有机肥料可以帮助洋葱在难耕的土壤生长。
The content of leaf chlorophyll was sensitive to soil moisture, under 5 kinds of different soil moisture status and the content of leaf chlorophyll was distinct.
叶片的叶绿素含量对土壤水分状况较为敏感，5种水分处理下苗木叶片的叶绿素含量有较大的差异。
Leaf area index and surface soil moisture are two basic factors of controlling evaporation.
叶面积指数和表层土壤含水量是控制蒸发的两个基本因素。
The soil moisture content and leaf area index (LAI) are the critical factors in energy partition process.
在平衡过程中，土壤含水量和叶面积指数(LAI)是决定能量分配的关键因素。
Soil matric potential, leaf water potential and atmosphere water potential is diversity in temporal and spatial variation.
通过相关性分析得出土壤基质势，叶水势，大气水势三者在时间和空间上都有很大的差别。
The annual changes rule of soil and leaf mineral element contents of early bearing walnut were studied.
查明了土壤和早实薄皮核桃叶片主要矿质元素含量的年变化规律。
The contents of soil and leaf chlorine in citrus and longan orchards in Fujian province were investigated.
对福建省柑桔、龙眼主产区的果园土壤及叶片氯含量进行较为广泛的调查分析。
Effects of applied boron (soil application of boron, spraying boron on the plant) on the boron forms and leaf photosynthesis of papaya plants were investigated.
探讨根外喷硼与土壤施硼对植株硼形态含量及叶片光合作用的影响。
Major factors of the pear iron chlorosis were determined through soil testing and leaf analysis.
通过对酥梨缺铁黄化症的土壤分析、叶片分析来确定诱发黄化的主要因素。
The qualities of 10 microelements were determined in tealeaf, tea plant leaf of "Jade Emperors sword" and soil in Wushan Gucheng.
采用原子吸收方法对谷城五山镇的玉皇剑茶叶，茶树叶以及生长的土壤中的10种微量元素进行了测定。
The contents of total cell wall matter and cellulose negatively correlated with leaf thickness in low phosphorus soil.
在低磷土壤上总细胞壁物质含量、纤维素含量与烟叶厚度呈负相关。
In the paper, the leaf nutrition level of Pingyin rose and its growth status, as well as its soil conditions were measured.
本文对平阴玫瑰的叶片营养水平、生长状况及其土壤条件进行测定。
The cucumber plant of 1/500 with soil culture and 1/1000 with substrate culture obtained the higher plant height, leaf area, leaf number and content of dry matter than other treatments markedly.
土壤栽培和基质栽培黄瓜分别以1/500浓度和1/1000浓度处理植株干物质的积累、株高、叶片数和叶面积均显著高于其它处理。
The experiments also indicated high leaf yields and potassium content in the treatment of soil moisture at the level of 60% in middle stage and 80% in latter stage respectively.
试验结果也表明，在生长中期土壤水分保持在60%，生长后期保持在80%的处理在获得了较高产量的同时也获得了较高的烟叶含钾量。
The apple leaf and soil in orchard of Qin 'an county of Gansu were investigated.
针对甘肃秦安县苹果叶缘焦枯发生严重的情况，对该地果园叶片和土壤进行了分析。
Besides, the variation of evaporation from soil as related to leaf area index has also been calculated and analyzed.
并分析了返青后土壤蒸发随叶面积指数变化的规律。
There were significant effects of soil water content on flavonoid, terpene lactone and endogenous hormones concentration of l Ginkgo leaf.
土壤水分含量对银杏叶中黄酮、内酯含量产生了显著的影响。
Leaf weight and quality weight increased with the increase of phosphorus consumption too, of the same treatment the medium phosphorus soil leaf quality was higher than the other soil.
单叶重和叶质重也随磷用量的增加而增加，相同磷用量处理中磷土壤叶质重高于低磷土壤。
The decline of photosynthetic rate at the community level mainly resulted from reduced leaf area after a long time treatment of low soil moisture.
长期低土壤水分处理后，群体光合能力的下降主要是由于叶面积的减小。
However, the correlation coefficient of clone S11 K content in leaf and K content in soil hasn′t the remarkable relation.
无性系S11叶片K营养元素含量与土壤中K营养元素的回归相关系数不存在显著回归相关。
The soil evaporation, leaf transpiration rate and surface Infiltration of PS was highest, surface runoff was lowest, relating to porosity of PS.
在土壤蒸发、叶片蒸腾、地下入渗中PS最高，在地表径流中ps最低，这与PS的孔隙度有关。
When soil moisture contents were above 9.5%, there was no apparent change in leaf water potential with a drop in soil moisture contents.
当土壤含水量在9.5％以上时，随土壤含水量的下降叶水势变化不明显。
As soil analysis are normally not very helpful to determine micronutrient deficiencies we prefer leaf analysis.
通常当土壤分析对确定微量营养素缺乏没有多大用处的时候我们更多的是采用树叶分析。
The photosynthesis rate will increase with the descendant leaf potential and soil potential, which demonstrates that Masson pine has much higher productivity of drought stress.
同时，光合利用效率随叶水势、土壤水势的下降总体呈上升趋势，说明马尾松具有较高的耐旱生产潜力。
The results showed that photosynthetic rate, transpiration rate, and stomatal conductance decreased and leaf WUE increased with soil water content declined.
结果表明，各品种幼苗叶片光合速率、蒸腾速率和气孔导度均随土壤水分的减少而呈降低趋势， 叶片水分利用效率呈增加趋势。
Potted cultivation was used to study the chloride distribution in different tobacco plant organ, and the relation of chloride content with soil, applied fertilizer and irrigated water in tobacco leaf.
应用盆栽法研究了氯在烤烟中的分布以及土壤、施肥与灌溉水含氯量对烟叶氯含量与分布的影响。
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