1)soil phosphorus土壤磷素
1.Effects of Long-term Fertilization on the Spatial Distribution, Availability and Transformation of Soil Phosphorus in Loess Plateau;黄土旱塬长期定位施肥对土壤磷素分级、空间分布及有效性的影响
2.Experiments of field runoff plots,which were conducted at vegetable plots in Hongsheng town of Wuxi city—the typical region of Taihu Basin,were designed to assess the effects of different rainfall intensities on soil phosphorus runoff loss from vegetable plots by artificial rainfall simulations.以太湖流域典型区域无锡市近郊区鸿声镇的蔬菜地为研究对象,采用人工模拟降雨的方法,通过野外径流小区试验,研究了不同雨强对菜地土壤磷素径流流失的影响。
3.The effects of different phosphorus levels (0,30,75,150kg/hm2) on characteristics and forms of soil phosphorus loss in runoff by artificial rainfall studied.结果表明,不同形态磷素随降雨-径流过程的变化趋势基本一致,即初始阶段浓度大且下降速度快,,大约产生径流20min后,浓度下降变得缓慢,直到最后趋于稳定;在整个降雨-径流过程中,颗粒态磷(PP)占总磷(TP)72%~87%,是土壤磷素径流流失的主要形态。
英文短句/例句
1.The Effects of Phosphorus Application on Rice Yield Increasing Efficiency of Phosphorus and Soil Phosphorus Status in Different Type of Paddy soil of Phosphorus Deficiency缺磷型稻田土壤施磷增产效应及土壤磷素肥力状况的研究
2.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
3.The Study on Soil Phosphorus in the Major Communities of Songnen Meadow;松嫩草甸主要植物群落土壤磷素研究
4.Soil phosphorus form and fractionation scheme:A review土壤磷素形态及其分级方法研究进展
5.Advances in Phosphorus in Long-Term Fertilized Soil长期施肥条件下土壤磷素的研究进展
6.ON THE STATUS OF SOIL PHOSPHORUS AND THE RESPONSE OF APPLIED PHOSPHATIC FERTILIZERS TO CROPS OF SOME IMPORTANT SOIL TYPES,KIANGSU PROVINCE江苏省几种主要土壤磷素供应状况和磷肥效果
7.Study on the Effect of Application Phosphate to Cotton-Field Soil Phosphorus Available施磷对棉田土壤磷素有效性影响的研究
8.Studies on Soil Fertility Quality Evolvement and Phosphorus Form Transformation in Newly Cultivated Light Sierozem;新垦淡灰钙土土壤肥力质量演变及土壤磷素形态转化的研究
9.The Effect of Phosphate Fertilizer and Manure on Phosphorus Leaching in Soils of Different Phosphorus Levels;磷肥和有机肥对不同磷水平土壤磷素渗漏的影响研究
10.EFFECT OF CITRIC ACID, GLUCOSE AND ORGANIC MATTER ON PLANT P UPTAKE AND SIIL P FRACTIONATIONS IN A HIGHLY WEATHERED ULTISOL柠檬酸、葡萄糖和有机质对植物磷素吸收和土壤磷素形态的影响
11.Spatial Distribution Features of Phosphorous in Soil and the Risk of Phosphorous Loss in a Small Watershed;小流域土壤磷素空间分布特征及流失风险评价
12.Studies on Phosphorus Status and the Risk of Phosphorus Leaching in Vegetable Soils;蔬菜地土壤磷素状况及其淋失风险研究
13.Study on Eutrophication of Wei River and Loss of Phosphorus from Soil to Water;渭河水体富营养化与土壤磷素淋溶的研究
14.Spatio-Temporal Variability of Soil Phosphorus and Its Fraction Transformation in Farmland;农田土壤磷素的时空变异及形态转化特征研究
15.Study on Effect of Using Humic Acid to Phosphorus Availability of Cotton Soil;腐植酸对棉田土壤磷素有效性影响研究
16.The Effect of Soil Phosphorus Availability on Different Methods of Fertilizer Application;不同施肥措施对土壤磷素有效性影响研究
17.Effects of Different Tillage and Rotation Systems on Soil Phosphorus Fractions;耕作方式及轮作对土壤磷素形态影响的研究
18.The Forms, Transformation and Availability of Phosphorus in Sheltered Cultivation Soil;设施土壤磷素形态、转化及其生物有效性的研究
相关短句/例句
phosphorus[英]['f?sf?r?s][美]['fɑsf?r?s]土壤磷素
1.Study on the Status of Phosphorus of Vegetable Soil under Solar Greenhouse for Different Planting Years in Suburb of Shenyang City不同年限日光温室菜田土壤磷素状况研究
2.The soil phosphorus accumulation and its availability were tested through long term and fixed-site trails for black soil.通过黑土长期定位试验,查明了长期不同施肥条件下,土壤磷素积累及有效性。
3.Study on Organic Phosphorus and its Correlation with Soil Phosphoratase and Phosphorus-solubilizing Microbe in the Main Soils of Shandong Province;37%,3大土类间MLOP、HROP差异极显著,MROP、LOP差异显著;4种不同活性有机磷以活性有机磷(LOP)的有效性最高,是反映土壤磷素有效性的主要指标之一,与土壤肥力密切相关。
3)Soil P土壤磷素
1.A 2-year experiment was conducted in cinnamon soil in the eastern parts of Hebei Province and the effects on the space-time dynamic changes of soil P and K nutrient with returning application of maize straw were studied.通过2年田间定位试验,研究了冀东地区玉米秸秆连续直接还田对土壤磷素和钾素养分时空动态变化的影响。
2.The status of soil P in long term different fertilization in red soil upland was studied.为提高红土红壤磷的有效性和肥料磷的利用率 ,设立长期定位试验 ,研究了红壤旱地不同施肥条件下土壤磷素的变化规律 。
4)soil N and P土壤氮素和磷素
5)soil phosphorus loss土壤磷素流失
1.The soil phosphorus loss mechanism was studied to develop a convenient assessment method.土壤磷素流失强度评价对于控制面源磷素流失,降低受纳水体富营养化程度极为重要。
6)phosphorus content in soil土壤磷素盈余
延伸阅读
土壤磷素吸附和解吸作用土壤磷素吸附和解吸作用adsorption and desorption of phosphorus in soil 磷与一OH基或一0H2其过程如下: (1)HZPO不和0H2进行配位交换而被专性吸附。交换即: OH] \/l M} /\lo/0H2曰\OH \/+H:PO一se/\0H2」 O H 十一﹁|l||习OH/\ 《)-P-心 /\OH OHOH M\\/\ O M/\ 0H:」(2)或者HZPO不和OH一交换，即Ho/ M \+HZPO不—一|一| HH/00\/ M/\/ 00H2 片 O 十刁|lwe|10H2\/\ (卜一P-城〕 /\OH OH OH一 /M \ 0H2一 \/ 0 过程(l)并不伴随着溶液的pH值改变，过程(2)可使溶液的pH值上升. 上述两过程的产物，随着时间的延续，都可以变为环状结构: OH+HZO;二二二已 OH一/\ OH:一 MM\/\/ 0+ZH:0/\/\ 0H21，，土城麟素吸附和解吸作用(adsorp‘on anddesorption of Phosphorus in 5011)土壤溶液中的碑酸离子被土城固相所吸持，谓之吸附。其逆向反应谓之解吸.吸附和解吸开始时都是发生在土壤固、液相的界面上.吸附作用可以发生在具有不变电荷土粒的表面(如结晶态的粘土矿物)，也可以发生在可变电荷的土粒表面(如铁铝氧化物、土壤有机质和方解石等物质)上。 碑素吸附土城对碑酸离子的吸附，分为物理吸附(非专性吸附)和化学吸附(专性吸附). 物理吸附当土城溶液的pH值低于土壤吸附剂的等电点时，吸附剂上的一OH墓被质子化: Me一OH+H+一Me一0H2+而后带正电荷的表面因静电引力吸引带负电的磷酸离子。
