The N use efficiency(NUE) and fate of N fertilizers applied to open field vegetables including green cabbage,Chinese cabbage and tomato were investigated by using field plot and microplot experiments.
采用田间小区和微区试验相结合,研究了小青菜、大白菜和番茄3种露地蔬菜的氮肥利用率及其氮素去向的差异。
GIS-assisted vegetable land soil environment quality assessment and class at large scale.;
GIS支持下的大比例尺蔬菜地环境质量评价及其分等研究
[CONCLUSION]It is found that HNO3-HClO4digestion is suitable for the dissolution of heavy metals from the soil of Vegetable lands.
【研究目的】从几种常见的土壤酸消解方法中选择出一种适合于蔬菜地土壤消解的高效、安全、经济的方法;【方法】采用HNO3-HClO4-HF、HNO3-HClO4、王水-HClO4、HNO3等不同的酸消解方法对蔬菜地土壤进行消解,通过对Cr、Pb、As、Hg4种重金属元素浓度的测定,然后对这4种消解方法进行实验比较;【结论】HNO3-HClO4消解法是一种适合于蔬菜地土壤特点的酸消解方法;采用三步消解法即可以使蔬菜地土壤样品达到较完全的消解。
The soil,water and air of vegetable base in the nearby suburb of the city had been investigated and evaluated by single or comprehensive pollution index in this paper.
对城市近郊某蔬菜基地的土壤、农用水、大气环境质量进行了监测,用单因子污染指数和综合污染指数进行评价,结果表明,土壤、农用水和大气综合污染指数分别为0。
The necessity of carrying out environmental impact assessment on vegetable base foundation project was elaborated in China.
阐述了在我国开展蔬菜基地建设项目环境影响评价工作的必要性;选择蔬菜基地的选址规划、指标体系建立、环境污染预测、生态影响分析以及效益分析等几个环境影响评价重点专题,就城市近郊蔬菜基地的环境影响评价工作开展进行了探讨。
Based on sampling data from soil of deep and top layers,the authors obtained the standard contents of main heavy metallic elements in soil of a vegetable base in Jiangxi Province,analyzed the distribution and relevant characteristics of five heavy metallic elements in top soil of this base,and probed into the migration features of these elements.
根据表层土、深层土的采样研究资料,获取了江西某蔬菜基地的土壤主要重金属元素基准值,分析了5种重金属元素在该区表层土中的分布、分配及相关特点,分析了元素的迁移特征。
Phosphorus saturation degree of soils on vegetable farms and its effects on soil phosphorus release potential and water quality;
蔬菜地土壤磷饱和度及其对磷释放和水质的影响
Testing of soil phosphorus from vegetable farm and the effects of phosphorus potential loss from simulated runoff;
蔬菜地土壤磷提取及模拟径流中磷素潜在流失的影响
The contents of organic materials,Pb,Cd,Cr,Ni,Cu,Zn and pH in the areas of vegetable farm soil in the suburb of Putian city were inverstigated.
对莆田市郊区蔬菜地土壤中pH值和有机质、Pb、Cd、Cr、Ni、Cu、Zn的含量进行了测定,结果表明,莆田市郊区蔬菜地土壤重金属含量在地区内及地区间的差异较大,Ni、Cu平均含量以新度镇较高,Pb、Cd平均含量以镇海、拱辰办较高,Cr、Zn平均含量以黄石镇较高,各地区重金属元素受地区影响显著性排序为Zn>Cr>Cd>Pb>Cu>Ni。
CO_2 emissions and influencing factors from vegetable soil in the Chengdu plain of Sichuan Basin;
蔬菜地CO_2排放特征及其影响因素
High accumulation of nitrate N occurred in vegetable soil in Guanzhong area of Shaanxi Province because of heavily applied chemical fertilizer or organic manure.
调查结果表明,化肥或有机肥的过量施用,都会引起蔬菜地土壤NO-3-N的大量累积。
Effects of Different N Application Levels and Application Methods on the Growth Character and Yield of Lettuce in the Open Field in the Surrounding Area of Erhai Basin
不同施氮量与施肥方式对洱海周边露地蔬菜青笋的生长性状、产量的影响
3. Vegetable production bases;
(三)蔬菜生产基地;
He ploughed a plot of land and planted some vegetables.
他耕了一块地,种些蔬菜。
the price of vegetables, houses, land
蔬菜、 房屋、 土地的价格
Contanmination Judgement of Cd in Soil and Vegetables in Miyi Vegetable Base
米易蔬菜基地土壤及蔬菜镉污染安全性评价
Mercury pollution in soil-vegetable system of vegetable districts in Guilin
桂林市菜地土壤-蔬菜系统汞污染研究
Safety Inspection and Evaluation of Production Enviroment and Product of Vegetable Crops in Nanjing Region;
南京市蔬菜产地环境与蔬菜产品安全监测与评价
Study on the Genotoxicity of the Organic Extracts in Soil and Vegetables of the Pollution-free Vegetable Farms;
无公害蔬菜生产基地土壤及蔬菜产品有机污染物的遗传毒性研究
Effects of Phosphorous and Straw Covering on Nitrogen Uptake of Vegetable and Nitrogen Losses from Vegetable Garden Soil
施磷和秸秆覆盖对蔬菜氮吸收及蔬菜地氮素损失的影响
Processes of Studies of Heavy Metal Pollution of Soil and Vegetables on China’s Vegetable Field
中国菜地土壤和蔬菜重金属污染研究进展
uncultivated vegetables;uncultivated ground.
未培植的蔬菜,未耕作的土地
The land is cultivated with rice, cotton and vegetables .
地里种着水稻、棉花和蔬菜。
They grow their own vegetables on a small patch of ground.
他们在一小块土地上自种蔬菜。
The cart was piled high with fruit and vegetables.
大车上高高地堆满了水果和蔬菜。
The land is cultivated with rice, cotton and vegetable.
地里种着水稻、 棉花和蔬菜。
"Kwan Tei Vegetable Marketing Co-operative Society, Limited"
军地蔬菜产销有限责任合作社
We dug up a piece of wasteland to grow vegetable
我们开垦了一块荒地种蔬菜。
The vegetable king- potato can be seen all over the world.
蔬菜之王--马铃薯在世界各地都能看到。
本网站所收集内容来自网友分享仅供参考,实际请以各学校实际公布信息为主!内容侵权及错误投诉:1553292129@qq.com
CopyRight © 2020-2024 优校网[www.youxiaow.com]版权所有 All Rights Reserved. ICP备案号:浙ICP备2024058711号