1) soil phosphorus
土壤磷
1.
This paper brief introduction about the research of soil phosphorus lead Eutrophication,the existing of soil phosphorus loss and it's environmental impact at home and abroad is summarized,the existing research insufficiency at home and abroad is analyzed,and the future development trend of soil phosphorus non-point source pollution research is discussed.
土壤磷素的农业非点源污染是导致水体污染的最主要原因之一。
2.
The article overview the people of the past study the phosphoric ratings method and results,analyses limitations on the tra- ditional soil phosphorus fractionation scheme,points out the function of the studies result that assessment of soil phosphorus fertility.
综述了前人研究磷的分级方法及成果,分析了传统土壤磷素分级方法的局限性,指出了其研究结果在评价磷素肥力中的作用。
3.
By analyzing the status of soil phosphorus in Guangdong Province,we discovered that risk and quantity of soil phosphorus loss increase rapidly and it severely pollutes the aquatic environment.
土壤磷素的农业非点源污染是导致水体污染的最主要的原因之一。
2) soil P
土壤磷
1.
The study is mainly on the development of researches about soil P fractions, the proportion of each fraction in total soil P, and the availability of P, the effect of long term fertilization on soil P and different rotation on P.
从土壤磷素分级研究、土壤磷各组分所占的比例、土壤磷的植物有效性、长期施肥对土壤磷的影响、不同轮作方式对土壤磷的影响几个方面综述了土壤磷素研究进展及现状 ,以期综合已有的经验和成果 ,促进土壤磷素今后的研
2.
Results also indicated that spaying PG germ soil P activator during blooming stage could increase fruit sites and boll numbers per plant which naturally increased the lint yield.
PG微生物土壤磷活化剂拌种处理棉花种子 ,对棉苗的株高、主根长度和干物重有不同程度的促进作用 ;在棉花生育期喷施 ,能增加棉花单株果节数、结铃数等 ,从而促进棉花产量的增
3) phosphorus-fixation of soil
土壤固磷
4) 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。
5) phosphorus
[英]['fɔsfərəs] [美]['fɑsfərəs]
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。
6) 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 。
补充资料：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。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条