1)Long-term fertilization长期施肥
1.Effects of long-term fertilization on soil organic nitrogen components in paddy soil derived from red earth;长期施肥对红壤性水稻土有机氮组分的影响
2.Effect of long-term fertilization on potassium nutrient in chestnut cinnamon soil;长期施肥对栗褐土钾素含量的影响
3.Effects of long-term fertilization on paddy soil organic carbon mineralization;长期施肥对水稻土土壤有机碳矿化的影响
英文短句/例句
1.Characteristic of Nitrogen Use Efficiency of Central Food Crops under Long-term Fertilization;长期施肥下我国粮食作物氮肥利用率变化特征
2.Research on Process of Fluvo-Aquic Soil Organic Carbon Mineralization in Initial Stage of Maize Growth Under Long-Term Different Fertilization长期施肥潮土在玉米季施肥初期的有机碳矿化过程研究
3.Change Law of the Phosphorus under Long-term Fertilization in Cinnamon Soil长期施肥褐土土壤磷素变化规律研究
4.CO_2、N_2O Emission from Red Soil Dry-land under Long-term Fertilization长期施肥下红壤旱地CO_2、N_2O排放特征
5.Effect of Long-Term Fertilization on Soil Active Organic Carbon in Paddy Soils长期施肥对水稻土活性有机碳的影响
6.Advances in Phosphorus in Long-Term Fertilized Soil长期施肥条件下土壤磷素的研究进展
7.Study on Phosphorus Accumulation and Leaching in Loess Soil Under Long-term Fertilization Condition;长期施肥条件下塿土磷素累积与淋失研究
8.Effect of Long-Term Fertilization on Agricultural Soil Fauna Community and Its Evaluation;长期施肥对农田土壤动物群落影响及安全评价
9.Effect of Long-Term Fertilization on Phosphorus Behavior in Purple Soil;长期施肥对紫色土磷素行为的影响研究
10.Effects of Long-term Fertilization on Heavy Metal Content in Purple Soil and Crop;长期施肥对紫色土—作物重金属含量的影响
11.Study on Dynamic Change of Potassium in Soil-Plant System under Long-Term Fertilization;长期施肥土壤—作物体系钾素动态变化研究
12.Research on the Form Changes and Availability of Organic Phosphorus Long-term Fertilizer;长期施肥土壤有机磷形态变化及有效性研究
13.Effect of Long-Term Fixed Position Fertilization on Soil Nutrient and Biological Characters in Loess Soil;长期定位施肥对黄土肥力和生物性状的影响
14.Study on the Enzyme Activities and Fertility Change of Soils by a Long-Term Located Utilization of Different Fertilizers长期定位施肥土壤酶活性及其肥力变化研究
15.Effect of Long-term Fertilization on the Red Soil Fertility and Crops长期定位施肥对红壤肥力及作物的影响
16.Effects of Long-term Located Fertilization on Phosphorus Fertility of Alfisol长期定位施肥对暗棕壤磷素肥力的影响
17.Effect of long-term located continuous fertilizer application on yield increasing and soil fertility developing长期定位连施化肥的增产培肥效应研究
18.Effects of Chemical Fertilizer and Organic Manure on Rice Yield and Soil Fertility长期不同施肥对水稻产量及土壤肥力的影响
相关短句/例句
Long term fertilization长期施肥
1.Effect of long term fertilization on peanut growth and output were studied in three typical parent material soil in South Hunan under long site experiment.以长期定位试验为基本材料,研究了湘南3种典型红壤生土长期施肥对花生生长发育及产量影响。
3)Long-term fertilizer application长期施肥
4)long-term fertilizer experiment长期施肥
5)long-term located fertilization长期定位施肥
1.Effects of long-term located fertilization on the microelement contents of soil;长期定位施肥对土壤微量元素含量的影响
2.Effect of long-term located fertilization on the quantity-intensity characteristics of potassium in sheltered vegetable field soil长期定位施肥对蔬菜保护地土壤钾素Q/I特性的影响
3.The effects of long-term located fertilization on status of heavy metals in the non-calcareous fluro-aquic soil were studied.基于非石灰性潮土26年的定位试验,在12个不同处理CK、N1、N2、M1、M1N1、M1N2、M2、M2N1、M2N2、NP2K、N2P和N2K中,于2003年研究了长期定位施肥对非石灰性潮土重金属状况的影响,结果表明,长期施肥和灌溉各处理土壤Fe、Mn、Cu、Zn含量均高于试验前的土壤,富集量分别为10。
6)Long-term fertilization长期定位施肥
1.Modeling the effect of long-term fertilization on grain filling of summer maize;长期定位施肥对夏玉米子粒灌浆影响的模拟研究
2.Research progress in soil potassium chemistry under long-term fertilization condition;长期定位施肥条件下土壤钾素化学研究进展
3.Factor analysis on the influence of long-term fertilization to soil quality indicators;长期定位施肥对土壤质量影响的因子分析
延伸阅读
长期极移 除了地球瞬时轴在地球本体内作周期约 1.2年的自由摆动和周期为1年的受迫摆动外,地球形状极在地面上的位置也在不断变化，这种变化就是长期极移。为了研究长期极移，需要地球上确定一个参考原点。目前国际上采用国际习用原点 (CIO)作为这一参考原点。国际极移服务和国际时间局都计算相对于CIO的地极坐标,国际纬度服务(ILS)的极移观测资料也归算到CIO系统，来为研究长期极移服务 有些人根据ILS积累八十年的极移资料,用适当的数学方法扣除极移的张德勒项和周年项以后，求得长期极移的统计结果：长期极移的平均速度约为每年0奬003,方向大致在西经70°左右。长期极移的量是微小的，目前主要根据 ILS的资料进行研究。但这一系统的台站较少，有连续八十年观测结果的台站只有三个，因此有许多人对上述长期极移数值表示怀疑。在观测到的长期纬度变化中，如何将极性部分和非极性部分区别开来，这个问题至今还未解决。近年来，古气候、古生物、古地磁等研究也发现，地球自转极和地磁极以及各个大陆在漫长的地质年代里有过大规模移动。这些研究虽然比较粗略，却表明在漫长的地质年代中长期极移是可能存在的。 对长期极移的起因的研究还处于探索阶段。可能是地球内部或表面物质分布的变化和不平衡，引起整个地球相对地球自转轴有一个长期扭动，也就是使形状轴在地球本体内长期漂移。
