Covering device是什么意思

网络释义

用法例句

Under the condition of soil culture,three moisture rates and two nitrogen application rates were designed to investigate the effects of water and nitrogen coupling on morphological characteristics and activity of root system in Shanyou 63.

在土培条件下,设计3个水分水平和2个施氮水平,研究水肥耦合对水稻汕优63不同生育阶段根系形态与活力的影响。

Results showed:effects of soil culture and solution culture on root number and root length is restricted by nitrogen fertilizer;average root length and longest root length under soil culture is bigger than that under solution culture;root weight and leaf weight under different cultivation style is concerned with water condition.

于2005年分别在土培和水培条件下,以杂交灿稻汕优63为材料,开展了不同培育方式对水稻根系形态及其活力影响的研究,并予以比较。

Cortical cells and crystal cells in mature region were fewer than those under soil culture.

采用树脂切片法,用光学显微镜和电子显微镜观察了土培和水培吊兰(Chlorophytum comosum)的根系结构。

Describes the research and development of a multi-purpose Cultivator,the structure is novel,it is using for flood and drought,there are earth up and rotary tillage for the key features.

介绍了一种多功能耕整机的研发,该机结构新颖,水旱通用,主要功能有培土、旋耕等,操作轻便,田间机动性好,能爬坡、走田埂和过沟,适宜山区、丘陵、旱地、水田、果园、菜园等场合的农耕作业,且能一机多用,经济耐用,效率高。

Design and development of waste-cotton nonwoven substrate for soilless culture;

无土栽培用废棉非织造布基质的设计开发

Adaptive fuzzy control system of circulating nutrient solution system in soilless culture;

无土栽培营养液模糊自适应循环控制系统

Study on substrates mixed mainly with agricultural wasted staff in soilless culture of tomato;

以农业废弃物为主的复合基质番茄无土栽培研究

Comparison between Soilless (Methane solution and Matrix) and Soil Cultivation in Melon

甜瓜无土(沼液和基质)栽培与土培比较试验

Comparative Study on Root Anatomic Structure of Alocasia macrorhiza(Aracea) in Hydroponic Culture and Soil Culture

海芋水培与土培根解剖结构比较研究

Comparative studies on stomata shape of water-cultivated seedlings and soil-cultivated seedlings of clivia miniata regei

水培与土培君子兰叶片气孔的比较研究

Effect and Mechanism of Subsoil Fertilization on the Albic Luvisol Improvement;

心土培肥改良白浆土效果及机理的研究

Study on Soil and Water Conservation in Moving the Topsoil to Cultivate Fertility Project of Three Gorges Reservoir Area;

三峡库区“移土培肥”工程的水土保持问题研究

To cover(a plant)with a mound of soil.

（在植物根部）培土

propagating medium

植物繁殖用土壤培养基

To cultivate(land or plants).

栽种培植（植物），整治（土地）

He earthed up the celery.

他给芹菜培上了土.

This land isn't good for growing plants.

这土地不宜栽培植物。

To loosen or dig soil around(growing plants).

松土在（栽培的植物）周围松土或刨地

The Study of Cultivating Mushroom with Wall-soil-covered Cultivation Technology;

运用墙式覆土栽培技术培育平菇的研究

EFFECT OF CULTIVATION METHODS ON BACTERIAL DIVERSITY BY PCR-RFLP ANALYSIS

培养方法对土壤可培养细菌多样性的影响

They were putting fresh earth around sprouting potato stalks.

他们在往绽出新芽的土豆秧周围培新土。

Agricultural lands are those used for crop cultivation or grazing by domestic animals.

农业土地是用于作物栽培或家畜放牧的土地。

The Effect of Fertilizing Management on Nitrogen Transition in Black Soil;

培肥方式对黑土区土壤氮素转化的影响

THE DISTRIBUTION OF SOIL HUMUS IN BLACK SOIL AGGREGATES UNDER INCUBATION

培养条件下土壤腐殖质在黑土团聚体中的分布

Study on Undisturbed Soil Sample Incubation for Estimating Soil Nitrogen Supplying Capacity in Loess Plateau

原状土通气培养法测定黄土高原土壤供氮能力的研究