营养元素

土壤中各种形态的Al与对应形态的Fe呈线性正相关，酸沉降增加了毒性元素Al的溶出，同时也可能增加营养元素Fe的有效性。

Moreover , acid deposition also increased leaching of toxic Al and possibly availability of nutrient Fe .

脂肪是人体健康不可或缺的营养元素，能提供37.8kJ/g的热量，而蛋白质和碳水化合物只能产生16.72kJ/g的热量。

Fat is an essential nutrient for human health , which can provid 37.8kJ/g of heat , while protein and carbohydrates only produce 16.72kJ/g of heat .

P是植物生长的必需营养元素之一。

P is one of the necessary nutrition elements for plant growing .

铁（Fe），硼（B），锰（Mn）等营养元素丰富，且变异系数较小；

Ferrum , boron , manganese are rich and coefficients of variation are small .

黑米中微量营养元素Fe、Zn、Cu和黑米色素的研究

Study on the Micronutrients Fe , Zn , Cu and Pigment in Black Rice

对一年生芦荟来说，30%海水胁迫显著降低了植株含水量和叶片对N、P、K营养元素的积累。

30 % seawater stress markedly reduced N , P , K contents in leaves of 1 yeared aloe .

钙镁磷肥的不同用量对花生各生育阶段从土壤中吸收N、P、K营养元素的作用不同。

The variant levels of calcium magnesium phosphate affected absorption of N-P-K nutrient with evey peanut bearing state from soil .

而处理Ⅲ的植株，除P、Zn外，其叶片营养元素较之对照有显著的提高。

Except P and Zn , Treatment III can significantly increased the nutrient element content of leaves than Check .

陆地生态系统植物的生长受到营养元素氮（N）和磷（P）的可利用性的限制。

Plant growth should be expected to be limited by nitrogen ( N ) and phosphorus ( P ) availability in most terrestrial ecosystems .

N、P、K是一切植物生长所必需的大量营养元素，对植物的生长起着重要的作用。

N , P and K are three necessary nutritive elements of all plants , which are very important to the growth of plants .

NaCl胁迫对棉花苗期营养元素吸收与含量的影响

Influence of NaCl Stress on the Uptake and Concentrations of Nutriments in Cotton Seedlings

土壤主要微生物生理类群数量的减少削弱了土壤中C、N等营养元素的循环速率和能量流动。

And in turn the decrease in major soil physiological groups weakened the circulation rate and energy flow of nutrition elements such as nitrogen and carbon .

Si对盐胁迫下水稻根系活力、丙二醛和营养元素含量的影响

Effects of Si on the Index of Root Activity , MDA Content and Nutritional Elements Uptake of Rice under Salt Stress

果树施给N、P、K、Ca等营养元素，会对果实品质产生不同的影响，这些元素的效应，不仅与其数量也与各元素之间的平衡有关。

It exerts different effects on quality of fruit giving nutrition elements , such as N , P , K , Ca , to fruit trees .

花器不同部位矿质营养元素各自有别，显示出高K、富Na、低ca状况；

The different flower organs had different mineral mutrition elements . There were high - grade K , Na and low - grade Ca.

采用盆栽试验，研究了施用NPK肥料对高粱杂交草吸收微量营养元素Cu的影响。

The effects of fertilizing NPK on Cu uptake of sorghum hybrid grass was studied by pot experiment .

肥料输入是各农果复合生态系统营养元素N、P、K输入的主要形式，其中，N、P主要依靠无机肥输入，而K主要依靠有机肥输入。

Fertilized input was main input , in Agro-fruit ecosystem . The nutrient element N - . P was inputted by inorganic fertilizer , P was by organic fertilizer .

栓皮栎幼苗的N源-汇随纬度升高而降低，各营养元素的含量均以源（叶）中的比例最大。

Source-sink ratio of seedlings of Q. variabilis decreased with increased latitude , and source ( leaf ) had the higher proportion of each nutrient element contents . 4 .

底泥中除了供应植物所需要的N、P等营养元素，也不可避免的把过量的重金属带入到土壤中，容易对土壤、地下水、动植物造成二次污染。

Lake sediments contains a lot of heavy metals except nutrient elements such as nitrogen and phosphorus , which are easy to pollute the soil , water , plants and animals .

另外，覆盖栽培增强了旱植水稻对营养元素N、P、K的吸收能力，其中以地膜覆盖处理最为明显。

Otherwise , mulching cultivation enhanced the absorption ability to N , P and K , among them , the treatment of plastic film mulching was most obvious . 6 .

综述了土壤有机质含量、pH值、主要营养元素等土壤肥力因素对烤烟叶片硝酸盐积累影响的研究概况。

Effects of some soil fertility indexes including content of organic matter , pH value and main nutrient elements on nitrate accumulation in flue-cured tobacco leaf were summarized .

通过对试验地不同林分土壤性质及营养元素的测定，发现水曲柳落叶松混交林土壤pH值、有机质含量与水曲柳纯林无显著差异；

The soil pH and organic matter in ash and larch mixture plantation and ash monoculture varies lightly through measuring soil characteristics and nutrition element in the different stands ;

土壤动物在营养元素循环，尤其是N、P元素循环中具有重要意义。

The soil macrofauna could be considered as a transverter in the litter-soil fauna-soil system and play a significance role in nutrient cycle , especially in N and P cycle of the system .

U和Th是放射性元素，K、Fe、Mo、Mg和Zn是植物生长需要的必要营养元素。

U and Th are radioactive elements . K , Fe , Mo , Mg and Zn are nutritive elements which are necessary to plants growth .

Fe（III）氧化物的还原偶联着Si、P等元素的变化，对提高这些营养元素的有效性发挥着重要作用。

Geological significances of anaerobic respiration lie in that reduction of Fe ( III ) oxides relate change of Si and P. Which increases release of these nutrient elements .

试验采用砂培方法研究了NaCl胁迫对棉花苗期几种营养元素含量和吸收的影响。

This experiment is conducted to determine the influence of NaCl stress on the content and uptake of some nutriments in cotton seedlings .

硒（Se）是人体必需的营养元素之一，缺乏或过量都会使人产生多种病症。

Selenium ( Se ) is an essential nutrient element for human beings . Many diseases may be caused by Se deficiency or Se excess .

好、中、差果园叶片营养元素中，K元素是最小元素，K元素对树体的营养水平以及产量、质量影响很大。

The study showed that K was the smallest element among leaves nutrient in the three levelsorchards , it exerted a great influence on nutrition yield and quality of a tree .

在盆栽试验中，不同pH值对非洲菊幼苗的生长发育、营养元素的吸收、叶绿素、SOD和MDA酶的含量有极其显著的影响作用。非洲菊适宜的生长范围为pH值5～7。

In the pot experiment , different the value of pH significant effect on the growth of Gerbera flower , nutrition element absorption , chlorophyll , SOD and MDA content .

本文应用常规分析手段对池塘水体中的O2、CO2、pH、阴离子、阳离子及营养元素进行了研究。

The study on O_2 , Co_2 , pH , negative ions , positive ions and nutrient elements in the water have been carried out with general analysis method in this paper .