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multiple canopy
相关语句
  复合群体
     The relationships between crop productivity and the characteristics of wheatcorn multiple canopy
     小麦玉米套作复合群体生长特征与生产力间的关系
短句来源
     Relationships between photosynthetic characteristics and productivity of wheat/corn multiple canopy
     小麦/玉米复合群体光合特性与作物生产力间的相关性
短句来源
  相似匹配句对
     Multiple trichoepithelioma
     多发性毛发上皮瘤
短句来源
     Multiple neurolemmoma
     多发性神经鞘瘤
短句来源
     The relationships between crop productivity and the characteristics of wheatcorn multiple canopy
     小麦玉米套作复合群体生长特征与生产力间的关系
短句来源
     Relationships between photosynthetic characteristics and productivity of wheat/corn multiple canopy
     小麦/玉米复合群体光合特性与作物生产力间的相关性
短句来源
     The Canopy Patterns in Dunhuang Frescoes
     敦煌壁画中的华盖图案
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  multiple canopy
Gaps due to the death of multiple canopy trees comprised 44.7% of the total ones.
      
The SAIL model can have multiple canopy layers and multiple components within each canopy layer.
      
Multiple canopy layers existed in some areas with exposed openings on other sections.
      


Based on the wheat corn double cropping system, the intercropping pattern of wheat/cron/corn was developed in Huang Huai Plain. The new pattern had higher productivity and resources use efficiency. The yield and the utilization rate of solar energy and heat increased by more than 20%. It showed that this new multiple cropping pattern is an effective way to further increase yield in this region. The key points for wheat/cron/cron pattern to get high yield are to construct multiple canopy structure...

Based on the wheat corn double cropping system, the intercropping pattern of wheat/cron/corn was developed in Huang Huai Plain. The new pattern had higher productivity and resources use efficiency. The yield and the utilization rate of solar energy and heat increased by more than 20%. It showed that this new multiple cropping pattern is an effective way to further increase yield in this region. The key points for wheat/cron/cron pattern to get high yield are to construct multiple canopy structure to add total ears, and improve both of the light penetrating state and light intercepting capacity. The important cultivation measures for the wheat/corn/cron were to select suitable variety, moderate density and stripe type, especially to improve technologies of early planting and harvesting.

在冬小麦 -夏玉米两熟模式基础上开发的冬小麦 /春玉米 /夏玉米多熟间套模式 ,具有较高的生产潜力和资源利用效率 ,其单产水平和光热资源利用率提高 2 0 %多 ,是农田在吨粮基础上实现高产再高产的一种新尝试。该模式实现高产的关键是充分利用间套作复合群体高强度的纳密功能 ,并形成一个高光效的群体结构 ,使复合群体的受光改善和截光能力增强。从栽培技术角度 ,确定适宜的品种组合和田间配置 ,解决好春玉米的早播早熟是该模式成功应用的关键

Under the intensive culture conditions, the photosynthetic curves of each component of the wheat/corn multiple canopies are mono-peaked. Compared all the ecological and physiological factors which affect the characteristics of intercropping canopies, it showed that the ecological effect to the photosynthesis is indirect, and P_n is determined by TR and SR. The study also showed that through culturing varieties which have high photosynthesis and high water utilization characters is the suitable way to get high...

Under the intensive culture conditions, the photosynthetic curves of each component of the wheat/corn multiple canopies are mono-peaked. Compared all the ecological and physiological factors which affect the characteristics of intercropping canopies, it showed that the ecological effect to the photosynthesis is indirect, and P_n is determined by TR and SR. The study also showed that through culturing varieties which have high photosynthesis and high water utilization characters is the suitable way to get high yield. The phase from the elongation stage to the filling stage is the most important period that determined the yield of corn. Intensify the corn filling stage management and the maneuver should be looked as the scientific practice to get total yield of wheat corn intercropping multiple canopy.

高水肥集约栽培条件下,小麦/玉米复合群体的光合特性及作物生产力主要决定于作物本身的生理特性,而与诸生态因子间的相关性不显著。小麦组分的 Pn(光合速率)与 CGR(作物牛产率)呈显著的正相关,而玉米组分的经济产量与抽雄期到灌浆期的Pn呈显著正相关。因此生产中可通过培育高光效品种或高水分利用效率的品种来实现作物的高产。

A total ten 30?m×30?m researching plots in Shaoshan forest was used for this study.The net-precipitation and the total deposition of the ions in the multiple canopies in the one whole year were recorded.The net-precipitation of Ca 2+ from canopy leaching and the containing Ca 2+ substances in the atmosphere were positive in canopy and sub-canopy.Except the vegetation developing and growing season,the obvious leaching of Mg 2+ from the canopies was observed.Significant differences...

A total ten 30?m×30?m researching plots in Shaoshan forest was used for this study.The net-precipitation and the total deposition of the ions in the multiple canopies in the one whole year were recorded.The net-precipitation of Ca 2+ from canopy leaching and the containing Ca 2+ substances in the atmosphere were positive in canopy and sub-canopy.Except the vegetation developing and growing season,the obvious leaching of Mg 2+ from the canopies was observed.Significant differences of K++ was observed between the heavy leaching from the canopy and the absorption by the sub-canopy.The leaching of SO_4 2-,NO_3-,Cl- also existed in the two layer of canopies.The transportation of seawater was the other important Cl- source.The results of total deposition showed that the amount of Ca 2+ in spring and summer reached the higheast in the observed year.For Mg 2+,it was the highest in autumn and winter,and for K+,it was the highest in autumn.

在韶山森林设立了 1 0个 30m× 30m的样方 ,研究了 1年中各个季节的二维结构冠层在酸雨作用下各离子的净沉降及森林地表接收的总酸沉降的变化。结果表明 ,来源于树冠层叶中营养离子的洗脱与大气中含钙颗粒物质的Ca2 + 的净沉降在乔木冠层和灌木亚冠层都为正 ,Mg2 + 除了在生长季节外 ,其冠层仍有较明显的滤出现象 ,K+ 在乔木冠层树冠的大量的滤出与灌木亚冠层的摄入形成明显对比。SO42 -,NO3 -,Cl-在秋冬两季树冠层均有较强的洗脱现象 ,而海洋输送则成为Cl-的另外一个重要来源。总酸沉降结果表明 ,盐基离子中Ca2 + 在春夏两季沉降量最大 ,Mg2 + 的沉降则以秋冬两季的量最高 ,K+ 的最大沉降量出现在秋季。

 
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