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infertile soil相关的网络例句

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The distiller's grain is best for improving soil pH, organic hydrolyte- nitrogen and alkalinity of soil., the soil organic and hydrolyte- nitrogen were increased 5.57g/kg and 22.23 mg/kg, and the pH, exchangeable sodium percentage were reduced 0.23, 8.78 percent.

酒糟对改良盐碱土壤pH值、有机质、水解性氮和土壤碱化度效果最好,磷石膏对盐碱土脱盐效果最显著,鸡粪提高土壤有效磷含量效果最明显。

Ltd is the manufacturer of room-inner soil-less flower-grass planting colophony, such as Crystal soil/mire/clay, Ice flower soil, Sop up colophony/water jewel, Oxygen ball (for fish-farming in a airproof room) and etc.

沈阳基石天成化工有限公司生产并销售用于室内花草无土种植所需的高吸水树脂,包括水晶泥,水晶土,冰花土,吸水珠,水晶珠及固体氧等。

For such reasons, the author investigated comprehensively on cropping systems and agriculture development in Fenxin County from 2002 to 2004, using mathematics model and GIS, discussed the cropping systems characteristic and development orientation and optimized the cropping systems spatial distribution. The data were collected from literature, questionnaires to experts and farm households, on-site investigation and field experiments. The main results are as follows:1,Because of inconsequent exploitation and management of the resources, rapid increasing population in hilly region of red soil, the stress on soil, deterioration of farmland ecological environment and soil gleization become more and more serious. Natural features , water and thermal resources and species are abundance.

基于以上目的,作者于2002-2004年,通过资料调研、专家咨询、农户调查、实地考察和田间试验等手段,对江西奉新县的种植制度和农业发展进行了全面的调查,通过建立数学模型和运用地理信息系统,对奉新县的种植制度的特征和发展方向进行了全面的论述,并且对种植制度进行了空间布局优化,主要结果如下: 1、红壤丘陵区由于长期以来对资源的不合理利用和掠夺式经营以及人口的急剧增长,土地压力上升,农田生态环境恶化,土壤潜育化,土壤肥力退化非常严重,但区内自然条件优越、水热资源总量丰富、物种丰富,具有一定的区位优势,为区内种植制度调整提供了有利条件。

The quality of reclamation soil,mainly including the methods of soil restructuring,the change of physical-chemical features and the organism activation,was analyzed at present,there are two ways to restructured soil: filling and infilling reclamation.

该文对复垦土壤质量进行了综述,主要对土壤重构的方法;重构土壤的物理、化学性状的变化;重构土壤生物活性等方面进行分析。

Freezing soil is a natural phenomina in cold and mountain areas, which has great impact on the regional climate, water cycle, and water balance. The land surface process in the condition of soil freezing and thawing is one of the most important process in the area. This paper firstly reviews the present study on land surface process in the condition of soil freezing and thawing, especially the development after the the hydrological land surface model introduced into the study of General Circulation Model, then introduces the undergoing international research project, such as Project for Intercomparison of Land-surface Parameterization Schemes and Cold Land Process Field Experiment by NASA, and finally analyses and puts forward the future research field and topics.

冻土是全球中高纬地区和高山地带普遍存在的自然现象,它对全球以及区域性气候、水循环、水平衡等都有着巨大的影响,土壤冻融条件下的陆面过程正是这种影响的重要环节,介绍了土壤冻融条件下陆面过程的研究现状,特别是在大气环流模型中引入水文陆面模型以来陆面过程研究的迅猛发展,对现在国际上正在进行的考虑冻土的陆面过程研究项目,如陆面过程参数化比较计划的第二阶段第五期PILPS (2E)以及美国NASA的寒区陆面过程实地试验计划也进行了介绍,并在此基础上对土壤冻融条件下陆面过程的发展趋势进行了分析。

In order to evaluate the restoration effect of cropping systems on continuous cropping soil, treatments of nitrogen-catching crop, rotation, and intercrop were adapted to study soil fertility and microbial indexes of the soil from an 8-year continuous cropping field using pot experiments. Fallow was used as a control. Cucumber yield were recorded.

为了评价栽培制度对连作障碍土壤的修复效果,采用盆栽方式,设置休闲、轮作、间作等处理,以生产中常用的栽培制度即夏季休闲的连作制度为对照,研究各处理对连作8年黄瓜的温室土壤生物修复效果及对后茬黄瓜产量的影响。

In addition, the electrical resistivity models of interlocal swelling soil, cement-soil and marine soft soil are proposed.

随后对东南大学岩土工程研究所自行研制的土工电阻率测试系统作了简单介绍。

From October to November in 2005, the soil macrofauna communities at 7 soil using types were investigated: paddy field, kaleyard, orchard (0), no vegetation wilderness, nursery, yard and lawn. Researches showed that there were 1052 soil macrofauna individuals belonged to 19 orders, 8 classes, 3 phyla.

2005年10~11月对金华市市区北部不同土地利用方式下的大型土壤动物群落与土壤理化性质的关系进行了研究,在水稻田、菜园、果园、无植被荒地、苗圃、庭院和草皮绿地7种不同利用方式的土地中取样,共获得大型土壤动物1052只,隶属3门8纲19目。

A long-term field experiment was carried out in Jilin province to study the effect of fertilization on the total content of soil organic carbon fractions and the soil Kos value in black soil.

通过长期定位试验研究了施肥对黑土有机碳总量、组成、品质的影响。

Soil organic carbon is an important indicator of soil quality, and labile organic carbon fractions play an important role in soil quality development.

土壤有机碳是土壤质量变化的重要指标,土壤活性有机碳组分在土壤质量变化方面发挥重要作用。

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