depth of ploughing

The biodegradation rates of petroleum hydrocarbons in polluted soil of Zihe Valley, Shandong Province, China, were studied for three different experimental conditions: 1) injecting of microbes into the soil; 2) tilling and adjusting humility; and 3) both processes applied together.

为研究加快石油烃污染土层生物修复的措施 ,取淄河滩含油土壤 ,通过加入富集细菌、翻耕调湿、加菌和翻耕调湿相结合 3种生物修复室内模拟实验 ,考察生物治理前后土壤石油降解速率的差异 ,并对土壤中石油的半衰期作出预测。

The Influence of Tillage on CH_4 and CO_2 Emission Flux in Winter Fallow Cropland;

翻耕对冬闲农田CH_4和CO_2排放通量的影响初探

Through the field test on rape-paddy fields and wheat-paddy fields in foothills in Central Hilly Area of Sichuan (take Xinhe village in Jianyang as an example)which are applied under the different tillages and same fertilization condition, the dynamic changing feature of NH_4~+-N、NO_3~--N in the leakage water and surface water are analyzed with the self-designed lysimeter.

在川中丘陵区水稻田上，利用自制的稻田渗漏器，通过田间试验，在相同施肥条件和不同耕作措施下，2007年大春季对麦稻轮作和油稻轮作两轮作田的4个处理：A常规翻耕移栽秧苗(CK)、B翻耕覆盖秸秆移栽秧苗、C免耕覆盖秸秆移栽秧苗、D免耕覆盖秸秆摆栽秧苗的土壤入渗情况以及渗漏水和田面水铵态氮、硝态氮的动态变化特征进行研究分析。

Observation on molluscicidal effect of qiangluocide powder with ploughing soil;

山丘地区强螺杀粉剂喷撒结合土地翻耕灭螺效果初步观察