稻作制,rice-based cropping system英语短句,例句大全

稻作制,rice-based cropping system
rice based cropping system稻作制
1.A long term experiment, conducted at Hunan Agricultural University since 1982, was used to evaluate the effects of rice based cropping system, amount of organic manure and groundwater level on distribution of several chemical fractions of Mn in the profile of paddy soil d.为了探讨红壤性水稻土锰的迁移和转化行为 ,通过长达 1 6a的定位试验研究了不同稻作制、有机肥以及地下水位对土壤剖面中全锰、活性锰和交换态锰分布的影响。
2.A long term stationary experiment was carried out to study the effect of rice based cropping system ,organic manure and ground water level on soil sulphur.为探明耕作、施肥、灌溉等农艺措施对水稻土硫素状况的影响 ,研究了在长期定位试验条件下稻作制、有机肥用量及地下水位对水稻土全硫及有效硫含量的影响。
3)continuous rice-rice cropping system稻-稻连作制
4)the Rice Planting Systems稻作制度
5)rice-wheat ratation system稻麦轮作制
6)rice-oilseed rape cropping system水稻-油菜轮作制
1.The effects of long-term fertilization regimes on weed communities were evaluated in a rice-oilseed rape cropping system in Tai Lake region of Jiangsu Province.为揭示长期不同施肥方式下农田生态系统中杂草群落的变化规律,于2006年10月在太湖地区一个长期肥料试验定位监测田,运用群落生态学方法研究了7种长期不同施肥处理持续20a后对水稻-油菜轮作制水稻田杂草群落的影响。