| 1. | The effect of long - term fertilization on the relationship between the development of organic - mineral in cinnamon soil and soil fertility
长期施肥对褐土有机无机复合性状演变及其与肥力关系的影响 |
| 2. | As well as zn , there are no observable difference in the fixation and speciations of cd between the treatment and the control in cinnamon soil . 2
而褐土对zn和cd的吸持量以及zn和cd在褐土中的形态分布与对照没有显著差异。 |
| 3. | It appeared no remarkedly effect of inoculating rhizobiaon on the cd speciations in cinnamon soil . 4 . the effect of inoculating rhizobia on the speciations of heavy metal varied with the metal and the soil
接种根瘤菌对土壤重余属的形态影响随土壤和重金属类型不同而不华中农业大学硕十学位论文郭学军2001同。 |
| 4. | The comparison of adsorbing with non - adsorbing rhizobia showed no remarkable difference in content of total cu in cinnamon soil , but adsorbing rhizobia decreased exc - cu and increased spe - cu and mno - cu markedly in cinnamon soil . this indicated adsorbing rhizobia reduced the mobility of cu in cinnamon soil . the total content of zn are 16 . %
褐土吸附根瘤菌后cu的吸持量没有变化，但是可交换态cu含量显著减少，专性吸附态、氧化锰结合态cu含量显著增加。 |
| 5. | In the zinc deficient cumulic cinnamon soil of northern china often encountered by dry climate , although the storing water in lower soil depth could not promote early maize plant to take up more zn from soils , our research gave a clear point that soil water in upper soil layer was important to enhance the influence of zn application in topsoil on early maize growth
表层土壤水分对苗期玉米植株锌吸收总量有显著影响，干旱条件下，玉米植株锌吸收总量下降；底层土壤水分供应状况对玉米锌浓度影响不大，但植株中锌向地上部运转增加。 |
| 6. | Inoculating rhizobia inhibited the cu dissolution and desorption in cinnamon soil . the content of total cu increased 73 mg / kg when the cinnamon soil was inoculated with rhizobia . compared with non - inoculating rhizobia , inoculating rhizobia showed 20 . 2 - 53 . 8 % increase of exc - cu , spe - cu , mno - cu and o . m - cu in cinnamon soil
褐土中接种根瘤菌抑制了cu的溶解和解吸，褐土cu的总量增加了73mg kg ，达18 ，可交换态、专性吸附态、氧化锰结合态和有机结合态的cu增加了20 54 。 |
| 7. | The elementary idea of the reference units method can be described as follows : firstly , by the setting of double series of reference units , we can control the highest and lowest land quality class of each village or town ; secondly , the class of the arable land will be get through the contrast between the arable land with the reference unit which has been selected in the same area , the difference in quality is the key factor to classify the land . the results show , 87 . 6 % of the lands from i to iii distribute on alluvial and lacustrine plains , where the associated soils are mainly grey fulvo - aquic and calcareous concretions black ones . and 61 . 4 % of them from iv to vi distribute on slightly rolling parts with mainly yellow - cinnamon soil developed from the diluvial and slope deposits
分等结果表明：卧龙区等的耕地中，有87 . 6分布在冲积、湖积平原区，主要土壤类型是在河流冲积物上发育形成的灰潮土、在湖相沉积物上发育形成的砂姜黑土；等耕地中，有61 . 4分布在垄岗区，主要土壤类型是洪坡积物上发育形成的黄褐土：而、等耕地集中分布在丘陵区，主要土壤类型是残坡积物上发育形成的粗骨性黄褐土，等别结果分布总体上体现了不同地貌类型、土壤条件下耕地质量的差异。 |
| 8. | Inoculating rhizobia enhanced the dissolution and desorption of zn in cinnamon soil . the dissolution of zn are 10 % higher in cinnamon soil inoculated with rhizobia than non - inoculated and spe - zn , mno - zn and o . m - zn decreased by 9 . 2 - 26 . 0 % in the presence of rhizobia . the comprison of inoculating with non - inoculating rhizobia showed no evident distinction in total zn , but inoculating rhizobia decreased spe - zn and mno - znand increased exc - zn in red soil
接种根瘤菌对褐土中zn的溶解和解吸使固定态zn减少66mg kg ，达10 ，专性吸附态、氧化锰结合态和有机结合态zn减少达9 . 2 26 . 0 ，而红壤zn的总量变化不显著，但是专性吸附态和氧化锰结合态zn含量显著减少，可交换态zn含量显著增加。 |
