soil fertility的例句大全

The abundance and availability of water and nutrients in a soil ecosystem determine its fertility.

土壤生态系统中水分和养分的丰度和有效性决定土壤的肥力.

Soil fertility is an important content in agrology. During centuries, people never stop searching its hypostasis.

土壤肥力是土壤学中的重要内容，从古到今，人类从未停止过对其本质的探求。

Studies of the Soil Fertility of Aerially Seeded Pinus massoniana Stands

马尾松飞播林土壤肥力研究

The faeces contain nitrogen that enriches the desert soil and promotes fertility.

粪便中含有氮，能滋养荒芜的土地并促进其肥沃。

The Salt and Water Movements Biology Fertility Changes under Seawater Irrigation in Seashore Saline Soil

海水灌溉条件下滨海盐渍土水盐运动及生物肥力特征的研究

Effect of Nitrogen Application Combined with Potassium on Ginger Yield and Lime Concretion Black Soil Fertility

氮钾配施对生姜产量和砂姜黑土肥力的效应

Evolution and management of soil fertility in rice fields under multiple cropping systems

多熟制条件下稻田土壤肥力演变及其管理

Study of the effect of silicate bacterium fertilizer on rice soil microbe and fertility

硅酸盐细菌肥料对水稻土壤微生物及肥力的影响

Eventually get the following conclusions: ( 1) Land in Dawa was divided into five soil fertility levels.

最终得到以下结论：1.大洼县共划分为五个县地力等级。

Effect of undecomposed Organic Materials on Soil Fertility of Newly-built Terraced Field

非腐解有机物对新修梯（条）田土壤的培肥效果

The experiment has signified: if the rice soil of fertility level is higher, the activity of saccharase is stronger;

肥力水平较高的水稻土，转化酶的活性较强；

Number of individuals and species, diversity indices, Shannon Wiener diversity index, biomass and soil fertility of the main plant community types in Xiyang River Bend region were analysed.

分析了西阳湾地区主要植物群落类型的种类组成、空间结构、物种多样性、生物量及土壤特性。

Analysis on the Soil Fertility in T on gde County

同德农业土壤肥力状况浅析

Function of Soil Improvement and Fertility for Hippophae rhamnoides Plantations

沙棘林改土培肥作用的研究

In order to increase soil fertility, and to improve ecological environment, screen experimentation of planting different leguminous forages had been taken in Guangxia grapery.

为提高土壤肥力、改善生态条件，在宁夏广夏葡萄园中进行牧草种植筛选试验。

To search the correlation between soil enzyme activities and soil fertility under fertilization conditions, the indexes of soil enzyme, soil chemical property and soil microbes in 3-years Azadirachta indica plantation were detected and analyzed in Yunnan Yuanmou Desert Ecosystem Located Research Station of State Forestry Administration.

为探讨施肥条件下土壤酶活性及其与土壤肥力的关系，对国家林业局云南元谋荒漠生态系统定位研究站3年生印楝林的土壤酶、土壤化学性质和微生物因子进行了测定和分析。

Therefore, the soil fertility were promoted pronouncedly by the replacement of Chinese fir Cinnamomum cassia stand.

说明肉桂林取代杉木林后, 林地土壤肥力得到较明显的改善.

This paper discusses the effect of nonnatural factors such as agricultural production system and farming practices on soil fertility. Special attention was paid to the effect of soil fertility degradation on sustainable agricultural development.

研究建国以来农业生产体制、耕作方法等人为因素对土壤肥力的作用以及由此造成的土壤肥力退化对农业可持续发展的影响。

Soil chemical fertility in cultivated-land and garden systems increased with land reclamation and soil maturation process, the content of soil nutrient and exchangeable Ca and Mg raised, but exchangeable Al dropped.

垦殖利用后，其化学肥力随着耕垦熟化过程不断提高，表现为土壤中各种速效养分及交换性Ca、Mg含量均增加，而交换性Al含量降低。

Studies on effect of turnover of green-manure and wheat straw into soil on soil fertility& i. effect of green-manure and wheat straw on characteristics of aggregates and organic matter in soil

绿肥、麦秸还田培养地力的研究&Ⅰ.对土壤有机质和团聚体性状的影响从土壤结构性的变化看绿肥和秸秆还田在养地中的意义