1) phosphorus content in soil
土壤磷素盈余
2) Phosphorus surplus
磷素盈余
3) 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。
4) 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。
5) 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 。
6) soil N and P
土壤氮素和磷素
补充资料：盈余
盈余
【盈余】是形容一国国际收支状况的术语，指一个国家在一定时期内国际收支中总收人大于总支出，出现顺差的国际收支状况。参见“顺差”条目。
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