您要查找的是不是：
- vertic chernozems 变性黑土
- Mainly chernozem soil, followed by loess. 土壤主要是黑钙土，其次是黄土。
- This thesis studied the dynamic relationship between the soil orgenic matter and enzymatic activity in chernozem. 研究了黑钙土中土壤有机质与7种土壤酶活性之间的动态关系。
- The test results show that the algorithm makes better improvement in time complexity than the other vertic... 实验表明,随着节点数的增加,该算法与文献[8]中的纵向合并算法相比,其时间性能有明显改善。
- Meanwhile, the paper descriped water flow curve of light chernozem soil under different rolling condition by the method of dairy following measure. 并采取逐日跟踪监测的方法，描绘了不同镇压条件下种床土壤水分变动曲线。
- Yi`an lies on the famous black soil belt of the world and soil is mainly composed of meadow soil and chernozem and is very fertile. 项目概述： 依安位于世界著名的黑土带上，土质以草甸土、黑钙土为主，土壤肥沃，适合甜菜、马铃薯等农作物生长。
- This paper concerns water situation,soil constitution,PH value,organic matter content and humic composition of chernozem under different artificial forest. 本文对不同人工林下黑土的水分状况、土壤结构、酸碱性、有机质含量及腐殖质组成进行了研究。
- LIU Wei,LV Yaquan.Study on degradation origin and ecologic renovation of chernozem in China[J].Water Resources &Hydropower of Northeast China,2006,24(1):59-61. [4]刘巍;吕亚泉.;中国黑土地退化成因及生态修复学研究[J]
- See chernozem. 参见chernozem.
- Soil is kastanozems and chernozem which are the neutral soil and alkalescence.The soil organic content is relatively high and suitable for the alfalfa that has a good quality and high output. 土壤为栗钙土、黑钙土，中型至偏碱性，有机质含量较高，非常适合优质高产紫花苜蓿生长。
- We can oftain the most optimum amount of fertilizer using in light chernozem to corn 9.6Kg/acre for nitrogen and 7.2Kg/acre for phosphrous (P_2O_5). Mixing ratio is 1:0.745. From yield increasing analysis. 根据投入产出边际分析原理;求出玉米在淡黑钙土上化肥最佳用量;氮为9.;6公斤/亩;磷(P_2O_5)为7
- Same trend was found from the field experiment, K application increased corn yield by 39. 1% in the aeolian sandy soil, 24. 5% in the light chernozem soil, and 14. 9% in the black soil. 田间试验亦有相同趋势，在风砂土、淡黑钙土和黑土试验地上施用钾肥分别使玉米增产39.;1%25、24
- There was great difference on yield increase amounts to maize for potash fertilizer on different type of soil and it increased yield by 15.1% on the black soil, 20.4% on the light chernozem soil and 38.8% on the aeolian sandy soil. 钾肥在不同类型土壤上对玉米增产数量有较大差异;在黑土上增产15.;1%25;淡黑钙土上增产20
- Soil belongs to a blackland, leaching chernozem, potential fertility is tall, the crop that basically plants now has vegetable of ground of wheaten, soja, potato, protection to wait. 土壤属于黑土,淋溶黑钙土,潜在肥力高,现主要种植的农作物有小麦、大豆、马铃薯、保护地蔬菜等。
- The relationship between the effective application of Zn fertilizer and the yield of maize grown in was studied through pot and field experiments in phaiozem and chernozem in Songnen Plain. 通过田间试验,研究了松嫩平原黑土和黑钙土锌肥的有效施用条件与玉米产量的关系。
- The Ecological Effect of Grass and Crop Rotation on Ridge Chernozem 岗平地黑土草田轮作的生态效应
- Effect of undecomposed corn on the physico-chemical properties of chernozem 玉米残体培肥对黑钙土理化性质的影响
- Keywords chernozem;organo-mineral aggregates;phenanthrene;sorption;desorption; 黑钙土;有机-矿质复合体;菲;吸附;解吸;
- Defining of Chernozem Area and Zoning of Soil and Water Conservation in Northeastern China 东北黑土区地域界定及其水土保持区划探析
- Survey and Study on Degrees of Potential Danger of Soil Erosion of Typical Chernozem in Heilongjiang Province 黑龙江省典型黑土区土壤侵蚀潜在危险度调查研究
