轮作

农作物轮作有助于防止水土流失。

Crop rotation helps prevent soil erosion .

水旱轮作系统养分资源综合管理研究

Integrated Plant Nutrient Management for Rice-Upland Crop Rotation System

他连续5年在同一块地里种植不同的作物，研究人员称之为轮作。

He grew a different crop on the same field five years in a row , what researchers call crop rotation

选好茬口，实行合理轮作。

Select the right crops and rotate them rationally .

大气CO2浓度升高对稻&麦轮作农田温室气体排放影响的研究

Effects of Elevated CO_2 on Greenhouse Gases Emissions from Rice-Wheat Rotation Cropland

冬小麦、夏玉米轮作农田土壤CO2释放与碳平衡的研究

Soil CO_2 Emission and Carbon Balance in the Winter Wheat-Summer Maize Rotation System

增施肥料（有机肥N′P配合）和轮作倒茬均可提高作物产量。

Increasing application of fertilizers ( mainly N and P fertilizers in matching ) and rotation can improve wheat yields .

稻-麦轮作系统土壤水解酶及氧化还原酶活性对开放式空气CO2浓度增高的响应

Response of soil hydrolase and oxidoreductase activities to free-air carbon dioxide enrichment ( FACE ) under rice-wheat rotation

大气CO2浓度升高和秸秆还田对稻麦轮作农田N2O排放的影响

Effects of Elevated Atmospheric CO_2 on N_2O Emission from Rice-Wheat Rotation Fields with Different Wheat Straw Incorporation Rates

川中丘陵水旱轮作土壤&小麦系统CO2排放及其影响因素

Co_2 emission from soil-wheat system in a paddy-dryland rotation area in the central Sichuan Basin and its influence factors

冬小麦/夏玉米轮作体系农田土壤N2O排放和CH4吸收特征

N_2 O Flux and CH_4 Uptake of Soil in Winter Wheat and Summer Maize Rotation System

在轮作体制下，平衡的施用NP能有效的提高土壤有机碳的含量。

Under cropping system , balanced fertilization could promote soil organic carbon content .

作物轮作复种模式综合评价的AHP模型设计与应用

Application of the Analytic Hierarchy Process Model to Comprehensive Evaluation of Crop Rotational Systems with Multiple Cropping

在烤烟&玉米轮作的烤烟土壤中，某些DNA条带所代表的细菌数量更为丰富。

In the flue-cured tobacco soil of flue-cured tobacco-maize crop rotation , the number of bacteria which certained DNA banding represents was richer . 5 .

N肥施用显著增加稻田作物产量，但其N2O排放在不同轮作制度下有所不同。

N fertilizer application promoted crop productions significantly , but induced different N2O emission factors between two rotation systems .

作物定位轮作体系长期试验研究（IV）&土壤优势真菌对大豆种子萌发的影响

Long-term crop rotation research ( IV ) & Effects of the soil dominant on the germinating of the soybean

大豆-玉米轮作区适宜NPK用量试验研究

The Research on Optimal NPK Dosage in Soybean-Corn Rotation System TESTING

结果表明，蔬菜地和华东稻麦轮作生态系统冬小麦田的NO和N2O排放具有不同的季节变化规律。

The result showed that N2O and NO emissions from vegetable field and winter wheat field of rice-wheat rotation systems in southeast China had different seasonal variation rules .

轮作制度和前作水分状况极大地影响稻田N2O的排放。

The results implied that cropping system and water status of previous cropping impacted N2O emission from paddy soil .

在红壤区水旱轮作体制下，推荐油菜秸秆全量还田，可以较好地钝化土壤Cd，减少水稻吸收，避免镉米的生产。

In the red soil region of paddy-upland rotation system , recommended the rape straw total returning , can better decreased soil Cd uptake of rice , avoided cadmium rice production .

稻油菜轮作稻田在水稻生长季中CH4排放总量为173.96kg·hm-2。

The total amount of CH4 emission during the rice growing season was about 173.96 kg · hm-2 .

该研究是加拿大SaskatchewanScott农作物轮作系统（ACS）研究的一部分。

This study was conducted as part of the Alternative Cropping Systems ( ACS ) study at Scott , Saskatchewan .

在稻麦轮作条件下，小麦生长季土壤对CH4的吸收量不到水稻生长季排放量的3%。

The amount of CH_4 absorption by soil in wheat growth season was less than 3 % that of CH_4 emission from cropland in rice growth season .

水早轮作区小麦常规处理、无氮处理、空白点和裸地的CO2排放通量的平均值分别为574.51、362.23、239.92、129.47mg/（m~2·h）。

Average flux of CO_2 emission from ordinary planting treatment 、 no nitrogen fertilizer , no plant and bare land treatment were 574.51 、 362.23 、 239.91 、 129.47 mg / ( m ~ 2 · h ), respectively .

黄淮海平原麦棉轮作土壤年平均N2O排放通量为19.37～51.97μgN2O-N/（m2·h）。

The annual mean N2O fluxes from soils of winter wheat / cotton rotation in Huang Huai Hai plain were 19.37 ~ 51.97 μ g N2O-N / ( m2 · h ) .

1995年在安达盐碱土利用改良研究所的轮作和连种抗病品种地块取土样6份，用Golden方法进行大豆孢囊线虫生理小种变化动态监测。

Soil samples were collected from rotation and continuous resistant variety planting fields in Anda Institute of Utilization and improvement of Saline-alkali soil in 1995.Dynamics change of races of soybean cyst nematode were studied by Golden method .

在烟-稻轮作的烟田发现烟草根茎腐烂病，其病原经鉴定为立枯丝核菌（Rhizoctoniasolani）。

In the tobacco field of tobacco-rice rotation , tobacco root and stem rot was found , the pathogen was identified as Rhizoctonia solani .

水旱轮作稻田CH4排放通量比冬水田低54.1%～65.1%；

The mean CH_4 emission fluxes from the paddy fields under rotation was 54.1 % - 65.1 % lower than those under mono-rice cropping during the rice growing season .

采用X射线衍射分析技术和室内模拟法，研究了长期施钾对不同生态条件和不同轮作制度下黑土、塿土和灰漠土钾素固定的影响机理。

By using X-ray diffraction and laboratory simulation , this paper studied the effects of long-term potassium ( K ) fertilization on K fixation in black soil , loess soil , and grey desert soil under different ecological conditions and cropping systems .

轮作条件下，不同生长年限的苜蓿地上部分N含量均按同一趋势递减，而P、K含量的变化不一致，植株K含量随生长年限的增加而增加。

In alfalfa rotation , the N contents of alfalfa with different growing lengths tended to decline while in the aboveground part of alfalfa , the P and K contents varied in different patterns and the K content increased as alfalfa grew longer and longer .