查询词典 humus

Dual-core is a saprophytic orchid plants, was born in an altitude of 700-800 meters deep oak forest humus soil.

双蕊兰是腐生植物，生于海拔700-800米的柞林下腐殖质深厚的土壤。

There were no significant differences in soil bacterial and fungal biomass, total nematode density and diversity, herbivore density, bacterivore density and omnivore-predator densities between the trenched and control plots in both mineral and humus soil layers.

切根处理对腐殖质层和矿质土层的细菌和真菌生物量、线虫总密度和多样性、植食性线虫、食细菌线虫和捕食与杂食性线虫的密度均没有显著影响。

Use turfy, moss or humus soil shallow basin is cultivated, border wanting a root breathes freely drainage is good.

用泥炭。苔藓或腐殖土浅盆栽植，要根际透气排水良好。

Three-dimensional excitation emission matrix fluorescence(3DEEM) was used to investigate the characteristic fluorescence of dissolved organic matter s,such as humus,proteinoid,surfactant and vegetable tallow in the wastewater treatment process.

采用三维荧光光谱法研究了城市污水处理过程中溶解性有机物的三维荧光特性变化规律。

Three-dimensional excitation emission matrix fluorescence (3DEEM) was used to investigate the characteristic fluorescence of dissolved organic matters, such as humus, proteinoid, surfactant and vegetable tallow in the wastewater treatment process.

采用三维荧光光谱法研究了城市污水处理过程中溶解性有机物的三维荧光特性变化规律。

In the humus, the humin fraction is hardly to extract and purify, this limiting the study of its nature and structure.

其中胡敏素的提取和纯化很困难，从而限制了对其性质和结构的研究。

In a narrow sense, soil organic matter is the soil humus and its components are humic acid, fulvic acid and humin.

从狭义上讲，土壤有机质就是土壤腐殖质，其组分有胡敏酸、富里酸和胡敏素。

In this study, bound residues of [C ring-U-14 C] ZJ0273 in three kinds of soil and dynamics distribution in humus fulvic acid, humin and humic acid were studied by using 14C isotope tracer technique.

利用14C同位素示踪技术研究了［C环－U-14C］丙酯草醚(ZJ0273)在3种不同类型好氧土壤中的结合残留及其在富啡酸、胡敏酸和胡敏素中的动态分布。

In this study, bound residues of [C ring-U-14C]ZJ0273 in three kinds of soil and dynamics distribution in humus fulvic acid, humin and humic acid were studied by using 14C isotope tracer techniques.

本文利用14C同位素示踪技术，研究了[C环-U-14C]丙酯草醚(ZJ0273)在3种不同类型好氧土壤中的结合残留及其在富啡酸、胡敏酸和胡敏素中的动态分布。

This paper reviewed the research on dynamic and balance of soil nutrient pool under long-term fertilization conditions,mainly about some active aspects which included dynamic variations of total nitrogen,available N,total phosphorus,available P,total potassium,available K,and organic carbon in soil; dynamic variations of ammonium N,amino acid N,amino sugar N,unknown N,non hydrolyzable N and microbiomass N in soil nutrient pool; changes of Ca2-P,Ca8-P,Al-P,Fe-P,O-P,labile organic P,moderately labile organic P,moderately stable P,highly stable P and microbiomass P in soil; changes of loosely,stably and tightly combined humus,humic and fulvic acids in soil carbon pool; effects of long-term fertilization on organic-mineral complex status in soil; nutrients cycling and balance of agricultural soil nutrients pool.

扼要地概述了国内外近年来关于长期施肥条件下土壤养分库的动态与平衡方面的研究成果。主要介绍并讨论了土壤氮、磷、钾养分全量及有效量的动态变化，土壤有机碳含量的动态变化；铵态氮、氨基酸态氮、氨基糖态氮、酸解未知态氮、非水解残渣氮及微生物体氮在土壤氮库中的动态变化；Ca2 P、Ca8 P、Al P、Fe P、闭蓄态磷，活性有机磷、中度活性有机磷、中稳性有机磷、高稳性有机磷及微生物体磷在土壤磷库中的动态变化；土壤碳库中松结态腐殖质、稳结态腐殖质、紧结态腐殖质以及富里酸和胡敏酸的动态变化；长期施肥对土壤有机无机复合状况的影响；农田土壤养分库的养分循环与养分平衡。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。