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tea root
相关语句
  茶树根系
     Effect of Aluminium on the Physiological Characteristics of Tea Root System
     铝对茶树根系生理的影响
短句来源
     Basis Characteristics of Tea Root System under the Condition of Chestnut and Tea Intercropping
     栗茶间作模式下茶树根系的基础特性
短句来源
     It was considered that the caffeine and tea cate-chins in the tea root exudate might have allelopathic effect on tea plant.
     据此推断,茶树根系分泌物中的咖啡因和儿茶素类物质具有异株克生作用。
短句来源
     distribution of tea root system under the condition of intercropping was deeper and evener;
     间作茶园茶树根系在土壤中的分布比单作茶树根系更深、更均匀;
短句来源
  “tea root”译为未确定词的双语例句
     The root concentration factors (RCFs) for PAHs were increased directly with the increase of lgK_ow. The leaves concentration factors (FCFs) for PAHs were increased exponentially with the increase of lgK_owl. The transport factors (TFs) of PAHs from tea root to tea leaves were decreased exponentially with the increase of lgAK_ow.
     根部对水培液中PAHs的富集系数与lgK_(ow)正相关,PAHs从根部至鲜叶的传输系数(TF)随lgK_(ow)升高呈指数下降,萘的TF为22.8%,菲、芘的TF仅约0.016%、0.004%。
短句来源
     Refering to local meteorological records, we can co nclude that population increase with the increase of monthly accumulated temperature and that the ratio of the mate parasite decreases with increasing monthly rainfall. We examined 25 cm tea root perpendicularly with 5 cm as unit and found that most female parasites appeared at the interval of 10-15 cm, most infective larvae at 20-25 cm(distal end)and the least of the both at 0-5 cm.
     从上到下在第10~15 cm处雌虫最多,第20~25 cm侵袭期幼虫最多; 10种杂草感染该虫种。
短句来源
  相似匹配句对
     Root
     根
短句来源
     Root Activity of Tea Plant and the Relevant Factors
     茶树根系活力及其相关因子
短句来源
     Effect of Aluminium on the Physiological Characteristics of Tea Root System
     铝对茶树根系生理的影响
短句来源
     Tea Singapore
     新加坡多元的饮茶文化
短句来源
     Tradition is Root
     传统是根
短句来源
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  tea root
Significant amounts of P dissolved from rock phosphate accumulated in rhizosphere of NH4+, not NO3-, suggesting that the dissolution of rock phosphate was induced by the proton excreted by tea root fed with ammonium.
      


The activities of phosphatases in the red earth in tea field from 6 provinces and the correlations between the activities and the phosphate contents in the soil samples and tea yields were investigated. Results showed that the activities of acid phosphatase (ACP) and neutral phosphatase (NEP) were intenser than that of alkaline phosphatase (ALP), and the activities of phosphatases were weakened with the depth of soil layer and the horizontal distance of soil away from tea root collar. The results also...

The activities of phosphatases in the red earth in tea field from 6 provinces and the correlations between the activities and the phosphate contents in the soil samples and tea yields were investigated. Results showed that the activities of acid phosphatase (ACP) and neutral phosphatase (NEP) were intenser than that of alkaline phosphatase (ALP), and the activities of phosphatases were weakened with the depth of soil layer and the horizontal distance of soil away from tea root collar. The results also showed the activities of ACP and NEP were more positively significant or significantly correlated with contents of total P, Bray-I P, AlP, Fe-P, Ca-P and tea yields, and could therefore be used as an important index to evaluate the available degree of phosphate and productivity of tea soil. Phosphatases played an obvious role in enzyme-catalying hydrolysis of organic phosphate and the increase of tea available phosphate contents. Applications of organic fertilizer could increase the activities of phosphatases. However, excessive applications of chemical fertilizer would result in the decrease of the activities. So, application of organic fertilizer combined with suitable amounts of chemical fertilizer was an effective way for increasing the activities of phosphatases in the red earth in tea field.

本文对我国6个省的红壤茶园土壤磷酸酶活性与土壤磷素含量及茶叶产量等因素的关系进行了研究。结果表明,红壤茶园土的磷酸酶以酸性和中性磷酸酶活性较强,碱性磷酸酶活性较弱;磷酸酶在土体中的垂直和水平分布规律,表现为土层越深、离根系越远,酶活性越弱。酸性和中性磷酸酶活性与土壤全磷、Bray-I法的磷,A1-P、Fe-P、Ca-P和茶叶产量都有显著或极显著的正相关关系,因而可以作为衡量土壤供磷能力和土壤生产能力的重要参考指标之一。磷酸酶对有机磷的酶促水解、提高茶树可吸收态磷的含量具有明显的作用。研究还表明,施用有机肥可提高茶园土壤的磷酸酶活力,偏施化肥则会破坏土壤的物理性质,从而导致磷酸酶活性降低,而在施用有机肥基础上配施适量的化肥,则是提高茶园土壤磷酸酶活性的重要途径。

Observation was made on the seasonal variation of density of Meloidogyne incog nita in vegetatively propagated clonal tea plants collected from Fengtian Farm. The results show t hat highest infection rate occurs from October to December and the lowest in August; the highest infectivity of parasite appears in October and lowest in July. Infection may take place from July t o November and from April to May of the next year. The peak of infection is revealed to be in October and the peak of oviposition in November....

Observation was made on the seasonal variation of density of Meloidogyne incog nita in vegetatively propagated clonal tea plants collected from Fengtian Farm. The results show t hat highest infection rate occurs from October to December and the lowest in August; the highest infectivity of parasite appears in October and lowest in July. Infection may take place from July t o November and from April to May of the next year. The peak of infection is revealed to be in October and the peak of oviposition in November. Refering to local meteorological records, we can co nclude that population increase with the increase of monthly accumulated temperature and that the ratio of the mate parasite decreases with increasing monthly rainfall. We examined 25 cm tea root perpendicularly with 5 cm as unit and found that most female parasites appeared at the interval of 10-15 cm, most infective larvae at 20-25 cm(distal end)and the least of the both at 0-5 cm. M. incognita was also found in ten species of weeds growing in tea nursery, two of the which gave harbor to M. javanica as well.

研究了茶苗南方根结线虫(Meloidogyne incoguita)虫口密度的季节消长规律和在不同深度根系中的分布,以及茶圃杂草作为其保虫寄主的感染情况。感染率10~12月最高,8月最低,平均感染强度10月最高,7月最低;从上到下在第10~15 cm处雌虫最多,第20~25 cm侵袭期幼虫最多;10种杂草感染该虫种。虫口密度随月积温的上升而上升,而雄性比则随月总雨量的升高而下降。

The relationship between VA Mycorrhiza and the growth of tea plant,between VA Mycorrhiza and the uptake of P,K,Ca,Mg,Cu,Fe,Zn,Mn,Na,were investigated by using pot-culture method.The results showedthat the growth and uptake of P,K,Cu,Fe etc.by tea plant could bemarkedly promoted by the inoculation with VA Mycorrhizal fungi.VAMinfection rate of tea roots decreaesd with the increase of soluble-P applica-tion.The development of VA Mycorrhiza and P uptake of tea plant werefurther accelerated...

The relationship between VA Mycorrhiza and the growth of tea plant,between VA Mycorrhiza and the uptake of P,K,Ca,Mg,Cu,Fe,Zn,Mn,Na,were investigated by using pot-culture method.The results showedthat the growth and uptake of P,K,Cu,Fe etc.by tea plant could bemarkedly promoted by the inoculation with VA Mycorrhizal fungi.VAMinfection rate of tea roots decreaesd with the increase of soluble-P applica-tion.The development of VA Mycorrhiza and P uptake of tea plant werefurther accelerated by the application of rock Phosphate.The role of VAMycorrhiza in the mineral nutrition and the growth of tea plant,the appl-ication of VA Mycorrhiza to tea fields were discussed in this paper.

采用盆栽法研究了 VA 菌根对茶树生长和矿质元素吸收的影响。结果表明,接种 VA 菌根真菌的茶树,无沦是地上部还是地下部的干重,都明显高于未接种的茶树,其中又以接种 VA 真菌同时施磷矿粉处理的茶树干重最大(较对照增加2.86倍);叶片含磷量较对照增加41%,特别是在施磷矿粉的条件下,叶片含磷量比对照增加87%,茶树整株的吸磷量是对照的3倍;叶片中 K、Cu、Fe 的含量增加,Zn、Mn、Ca、Mg、Na 的含量没有显著变动,但施磷处理使各处理茶树叶片中矿质元素含量的变动趋于复杂。研究还表明,随着水溶性磷施用量的增加,茶树根系的被侵染率显著降低,而施磷矿粉则可促进茶树 VA 菌根的发育,被侵染率也最高(达30%)。文中还对VA 菌根促进茶树对难溶性磷的利用和 K、Cu、Fe 等矿质元素的吸收以及 VA 菌根在茶园中的应用等问题进行了讨论。

 
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