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black soils
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  黑土
     Organic Carbon Stock of Black Soils in Northeast China and It's Contribution to Atmospheric CO_2
     东北黑土有机碳储量及其对大气CO_2的贡献
短句来源
     The net historical release of CO2 from cultivated black soils to atmosphere is 34.6~434.6 TgC.
     由此计算自耕种以来,东北黑土净释放到大气中的CO2数量为34.6~434.6TgC。
短句来源
     concentrations to inhibit the 50% growth of maize were 25.0 ug/kg and 21.5 ug/kg respectively for brown and black soils.
     21.5μg/kg(黑土)。
短句来源
     In the black soils under different crops, there were obvious difference in the levels of soil humidity and the residual water in soils after harvest of crops.
     因此,不同作物下黑土农田的水分状况,表现在土壤湿度水平、各水分时期出现时间、作物收获后残留土壤中的水量等方面均有明显区别。
短句来源
     The potential of carbon sequestration of black soils in Northeast China is 244.3 Tg C,with an average of 1.55 TgC/a over the next 20 years. 
     如果采用新的管理措施后,东北黑土最大固碳潜力为244.3TgC,在未来20年内土壤固碳潜力为30.9TgC,平均每年1.55TgC/a。
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  “black soils”译为未确定词的双语例句
     Analysis of the Effect of Hg on Microbial Community in Black Soils of China by PLFA
     用磷脂脂肪酸(PLFA)技术分析汞对黑壤微生物群落的影响
     Measuring the ~ ~137 Cs reference inventory in study area accurately and establishing quantitative models for converting ~~ ~137 Cs measurements to estimates of soil redistribution rates are two key questions. The spatial variation of erosion and deposition of Black Soils on a sloping cropland in Northeast China was studied using ~ ~137 Cs tracer technique.
     准确地测定研究区137Cs背景值,建立137Cs流失量与土壤再分布速率之间的定量模型是137Cs示踪技术的关键。
短句来源
     Modifying black soils with quaternary ammonium compounds (QACs) hexadecyltrimethyl ammonium (HDTMA) and tetramethylammonium (TMA) has been done. The sorption of benzene homologues by these soils has been studied.
     以阳离子表面活性剂十六烷基三甲基铵离子 ( HDTMA)和四甲基铵离子 ( TMA)对土壤进行修饰 ,制得改性土壤。
短句来源
     Causes of sajang black soils low-yieding in north Anhui and its synthetic improving
     皖北地区砂姜黑土低产原因及其综合治理
短句来源
     Composition and properties of organo-mineral complexes of four cultivated soils (black soils, albic soils, brown earth and soda-solonchaks) were studied by ultrasonic dispersion method.
     本文采用超声分散法研究东北主要耕作土壤复合体的组成及其性质。
短句来源
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  相似匹配句对
     ENZYMATIC ACTIVITIES IN BLACK SOILS
     黑土的酶活性
短句来源
     Black,M.
     Black,M.
短句来源
     Erosion Characteristics of Black Soils in Northeast China
     东北黑土水土流失特点
短句来源
     Black, M.Scholes and R.
     Black,M.
短句来源
     SELEMIUM IN SOILS
     土壤中的硒
短句来源
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  black soils
Lower temperatures favoured the colonization in both red sandy loam and black soils.
      
When dry, the brown soils are wettable, but the black soils are water repellent.
      
Lateritic and black soils had a poor algal flora and in general sandy soils were rich.
      
An attempt was made to study the number of species belonging to Cyanophyceae, Chlorophyceae and Bacillariophyceae in Lateritic, Red and Black soils and also Dry lands (jowar, cotton and wheat) and Wet lands (paddy and sugar cane).
      
The coefficient of correlation was also the highest when data from similar experiments on wheat on alluvial, grey brown, sierozem and medium black soils from different places in India were pooled.
      
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Pot culture experiments were carried out on the black soil from Harbin and the paichiang soil from Hwachuan Hsien,both of Heilungkiang Province.Application of superphosphate alone increased the yield of wheat in the paichiang soil but not in the black soil.Combined application of nitrogenous and phosphatic fertilizers increased the yield of wheat in both soils. Uptakes of phosphorus by wheat at various stages of plant growth were examined by tracing technique.In the black soil,addition...

Pot culture experiments were carried out on the black soil from Harbin and the paichiang soil from Hwachuan Hsien,both of Heilungkiang Province.Application of superphosphate alone increased the yield of wheat in the paichiang soil but not in the black soil.Combined application of nitrogenous and phosphatic fertilizers increased the yield of wheat in both soils. Uptakes of phosphorus by wheat at various stages of plant growth were examined by tracing technique.In the black soil,addition of ammonium sulphate encouraged the uptake of soil phosphorus by plant,while in the paichiang soil the main supply of phos- phorus to plant was from superphosphate.

1.盆栽条件下黑土单施磷肥使小麦减产8.69—15.51%。磷肥和氮肥配合施用可提高磷肥肥效,小麦产量增加了184.44—314.58%。单施氮肥增产224.37—289.54%。白浆土单施磷肥可使小麦增产7.95—38.25%。单施氮肥增产149.83—160.26%,而磷肥与氮肥配合施用增产达176.85—429.91%。2.小麦产量的提高与植株总磷量,特别是与吸收肥料磷量占全磷的比例有密切关系,植株中肥料磷增加,产量亦相应提高。黑土中有效磷合量为7.83—13.11毫克/100克土;白浆土为1.46—4.99毫克/100克土。因此,黑土上小麦吸收土壤磷素较多,肥料磷较少;白浆土上则相反。3.小麦植株含氮量随着含磷量而相应提高。黑土氮磷配合施用,可使小麦对肥料磷利用率提高4.45—21.48%,土壤磷利用率提高1.61—4.99%。白浆土氮磷配合施用,肥料磷利用率提高17.69—28.89%,土壤磷利用率提高0.74—1.02%。

The water regime in cultivated black soils are not only influenced by the climatic factors, but also by the crops. In the black soils under different crops, there were obvious difference in the levels of soil humidity and the residual water in soils after harvest of crops. In wheat fields, an high evapotranspiration intensity with a peak which happened earlier and a maximum annual rate of evapotranspiration were found. But in fields of intertilled crops such as soybean and corn, the evapotranspiration...

The water regime in cultivated black soils are not only influenced by the climatic factors, but also by the crops. In the black soils under different crops, there were obvious difference in the levels of soil humidity and the residual water in soils after harvest of crops. In wheat fields, an high evapotranspiration intensity with a peak which happened earlier and a maximum annual rate of evapotranspiration were found. But in fields of intertilled crops such as soybean and corn, the evapotranspiration intensity was lower, the evapotranspiration peak came later and the annual rate of evapotranspiration was smaller. In the same year, soil humidity in wheat fields was lower than that in soybean and corn fields, and the residual soil water in wheat field after harvest was the smallest.

田间观测比较证实:耕地黑土的水分状况和农田水分循环过程不仅受气候因素所控制,同时也明显受作物种类不同所影响。因此,不同作物下黑土农田的水分状况,表现在土壤湿度水平、各水分时期出现时间、作物收获后残留土壤中的水量等方面均有明显区别。小麦地蒸发强度大,蒸发高峰出现早且具有最大的年总蒸发量;大豆、玉米等中耕作物蒸发强度弱,蒸发高峰出现晚且具有较小的年总蒸发量。因此,在同一年里小麦地土壤湿度通常要比大豆、玉米地低,残留在土壤中的水分因而也最少。

Results of experiments conducting on podzolic soil, meadow black soil and sandy loam showed that the inhibiting effect of Trifluraline on plant growth, effective nodules, nitrogen fixation activity of soybean is siginfi-tcant, particularly at flowering and pod filling. The results also showed hat the dry weight of effective nodules, nitrogenase activity, total nitrogen fixation activity per plant and yield of soybean reduced by 44.8, 42.2, 56.4 and 11.5-15.7%, respectively, the growth of root system...

Results of experiments conducting on podzolic soil, meadow black soil and sandy loam showed that the inhibiting effect of Trifluraline on plant growth, effective nodules, nitrogen fixation activity of soybean is siginfi-tcant, particularly at flowering and pod filling. The results also showed hat the dry weight of effective nodules, nitrogenase activity, total nitrogen fixation activity per plant and yield of soybean reduced by 44.8, 42.2, 56.4 and 11.5-15.7%, respectively, the growth of root system and root hairs decreased seriously as well.

于1979——1981年在白浆土、草甸白浆土、草甸黑土和冲积砂壤土上进行了盆裁、小区和大田实验,同时辅以人工光照室内的单株水培和土培试验。查明了氟乐灵对大豆有效性结瘤和根瘤固氮活性的抑制效应及其季节动态;初步探明由于施药土层中大豆根系侧根形成和生长严重受阻,根毛消失。从而减少了根瘤菌入侵“门户”是导致大豆有效共生体系受阻抑的主要原因;由于氟乐灵对大豆整个生育期中植株生长发育和结瘤固氮产生显著的抑制影响,故在田间常用量下使大豆籽实减产11.5——15.7%,施用高剂量下(2.5公斤/公顷)则减少30%以上。氟乐灵(Trifluralin)是一种二硝基苯胺类选择性土壤处理的化学除草剂。七十年代以来已在国外广泛用于豆田和棉田的杂草防除。近年来在我国黑龙江垦区国营农场中也成为大豆田杂草防治的主要化学除草剂,其应用面积每年达数十万公顷,并日趋扩大。

 
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