英语释义

1. a nail one or two inches long made of iron, brass, tin, or tinned iron with a hook or eye at the head and used to mark stations in underground surveying (as of mines)

片语

SPAD仪spad meter

spad knowledge传播知识

wheel spad轮罩

SPAD值SPAD readings

spad meterspad仪

SPAD thresholdSPAD阈值

rádioaktívny spad放射性落尘

SPAD readingsSPAD值

James Spad只带一把钥匙的

英汉例句

• the results showed that increasing anf accelerated tillering and increased the effective panicles, the leaf area and spad of flag leaf.

  结果表明，增施氮肥可以促进分蘗的发生，增加有效穗数，增加剑叶面积和spad值；

• in the same application levels of nitrogen the spad value was the highest at anthesis stage.

  在同一施氮水平下，开花期的spad值都最高。

• to establish cotton nitrogen diagnosis model based on spad value and validate the model.

  建立棉花氮素营养诊断追肥模型，并快速推荐不同生育期的追肥量。

• object: this paper was proposed to study using spad for cotton plant n nutrition diagnosis.

  目的：本研究采用spad仪进行棉花氮素营养诊断和氮肥推荐。

• compared with spad readings, the normalized redness intensity (nri), with a high rvalue of 0.541-0.780 with conventional n parameters, could better express the n status of rice.

  红光标準化值与叶绿素仪spad读数相比能更好地表征水稻幼穗期的氮素营养状况，与常规测试指标的相关系数介于0.541～0.780之间。

• dynamic changes of water content, nitrogen content, spad value and photosynthesis of each functional leaf on main stems of rice under different soil water and nitrogen levels were investigated.

  明确了不同土壤水氮条件下水稻叶位含水率、含氮率、spad值和光合速率的动态变化特征。

• the relationship between grain yield and population index (the product of spad and lai) at heading was a quadratic curve.

  稻谷产量与抽穗期群体指数（spad与lai的乘积）呈开口向下的抛物线关系。

• key link of this technology is that the monitoring of satellite remote sensing image data picture, correspondence relation model between the ground monitoring spad value and growth health of barley.

  该项技术主要环节在于卫星遥感图片所监视的影像数据、地面监测spad值与大麦生长健康程度的对应关系模型。

• with the increase of density, pn, spad and amount of dry matter accumulated of one sample, lai, yield increased, starch content decreased and tannin content decreased.

  随密度增加，叶片凈光合速率、叶绿素含量、单株干物质积累量下降，叶面积指数提高，产量增加，子粒淀粉含量下降，子粒单宁含量上升。

• determinate the effect of different cultivation models on spad values in flag leaves of wheat, sugar metabolism and yield components, the main results are as follows:1.

  深入研究不同栽培模式与灌浆过程中同化物转运关键酶和产量的关系对产量的调节具有重要的科学意义和应用前景。

• the results indicate the possibility of harmonizing the conflict of higher yield and better quality under optimal spad thresholds based on rice variety properties using ssnm or rtnm.

  实时实地氮肥管理能较好地协调水稻产量和品质的关系，关键措施是依据品种特性确定适宜的预设spad阈值。

• i'll spad my wings when you need me.

  当你需要我的时候我会张开我的翅膀。

• studies on the difference of the flag leaf spad value among genotypes of wheat under ckcondition and s treatment.

  不同基因型小麦单株旗叶开花期spad值的差异达极显着水平。

• results showed that the alien plant of mimosa bimucronata has a lowest spad value among all species determined.

  结果表明，外来植物簕仔树的spad值远低于其他植物；

• on heading date in wheat, spad value ranked in the order of flat-srtraw mulch planting> ridge-straw mulch planting> bed-planting> flat planting.

  小麦抽穗期spad的值大小依次为平作覆盖处理＞垄作覆盖处理＞垄作处理＞平作处理。

• increased cu loading caused a linear decrease of spad value.

  spad值随铜污染浓度的增加而呈线性下降；

• results showed that nitrogen fertilization rate significantly affected tobacco plant growth, leaf spad value, dry matter accumulation, leaf yield, economic value as well as chemical components.

  结果表明：在绿肥全部还田条件下，不同氮肥用量对烤烟株高、烟叶spad值、烟株干物质累积以及烤后烟叶产量、产值和化学成分均有一定的影响。

• it , however, inhibits p translocation to leaves. while chlorophyll spad decreases under deficient p and zn dose, it increases under normal p and zn supply.

  此外，磷、锌的缺乏均降低了叶绿素spad值，而磷的正常供应和锌的供应促进了叶绿素的合成。

• leaf n/ chlorophyll content and spad value increased with the increasing n fertilizer, and the lower leaves were more sensitive to the soil n supply than the upper leaves.

  下位叶比上位叶对土壤氮的供应状况更为敏感，随着施氮量的增加，水稻叶片氮素含量、叶绿素含量、spad值相应的增加，而下位叶的增幅更明显。

• study the effects of different nitrogen treatments and cotton varieties on spad value.

  研究施肥量、棉花品种对叶绿素仪读数的影响。