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- Soil chemical property changes in vegetable greenhouse fields 蔬菜温室土壤某些化学性质的演变特征
- vegetable greenhouse field 日光温室蔬菜地
- The influence of PCNB on activities of invertase, urease, neutral phosphatase and catalase in vegetable greenhouse soil was investigated. 采用室内试验方法研究了五氯硝基苯(PCNB)对蔬菜大棚土壤转化酶、脲酶、中性磷酸酶和过氧化氢酶活性的影响。
- There are many studys on PCNB, but it has not beenreported that influence of PCNB on soil enzyme in vegetable greenhouse. 随着东北地区温室大棚的快速发展,开展PCNB对东北地区蔬菜大棚土壤酶活性影响研究更有实际意义。
- Keywords PCNB;soil enzyme;activity;vegetable greenhouse; 五氯硝基苯;土壤酶;活性;蔬菜大棚;
- Farm three, four cars, walking tractor, three rounds of explosion-proof, mining machinery and electrical products, vegetable greenhouses machinery, fertilizers, and other. 农用三、四轮车、手扶拖拉机、防爆三轮、矿山机电产品,蔬菜大棚机械,化肥等。
- Keywords vegetable greenhouse;pesticide;PCNB;soil enzyme;northeast area; 蔬菜大棚;农药;五氯硝基苯;土壤酶;东北地区;
- The field artillery pounded away at the for tress. 野战炮兵连续炮击那座要塞。
- The greenhouse protect vegetable from cold. 温室保护蔬菜免受冻害。
- The greenhouse protects vegetable from cold. 温室保护蔬菜免受冻害。
- He thinks the vegetable is a bit tasteless. 他觉得蔬菜没有什么味道。
- The crowd cheered as the teams entered the field. 球队入场时观众们为之欢呼。
- They planted many flowers in their greenhouse. 他们在花房里种了很多花。
- He is building a greenhouse in his garden. 他正在花园中建温室。
- On the map the drains of each field are laid sown. 地图上标有每一块地的排水沟。
- Right-handed batters usually hit to left field. 右撇子击球手把球打到左外野。
- The runaway horse was cornered in a field. 那匹跑掉的马在田地里被圈住了。
- From a child, he do not like to eat vegetable. 从小时候起他就不喜欢吃蔬菜。
- What brand of vegetable oil are you using? 你正在用的植物油是什么牌子?
- Tent is used by camper and by soldier in the field. 露营的人和战地的士兵用帐篷。