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- Nutrient balance in rice field ecosystem of northern China. 北方稻田生态系统养分平衡研究。
- soil in rice field 水稻土
- In China,pyrethroid insecticides were forbidden to apply in rice field. 但是,在中国一直被禁止应用于水田害虫防治。
- An analytical method for determination of cinmethlin residue in rice (including unpolished rice, husk, straw and seeding), soil and water in rice field by GC/MS has been established. 建立了一种用于测定糙米、稻壳、植株(稻草和秧苗)、土壤及稻田水中恶庚草烷残留量的分析方法。
- The occurrence rules of rice planthopper in rice field with cultural crab was ascertained through systemic investigation and field census. 通过系统调查和大田普查相结合的方法,研究明确了养蟹稻田稻飞虱的发生规律。
- When field bunds which planted soybean or kept weeds, spiders density increased in rice field. 蜘蛛在稻田的密度在田埂种豆或蓄草条件下增高。
- The organic matter and available N, P, K in HPR field were decreased significantly than those in rice field. 2.夏季种植杂交狼尾草比种植水稻消耗了更多的土壤有机质和速效养分,不利于后作的生长。
- The residues of 20% triazophos EC in rice field water, plant, rice shell and unpolished rice were determined by gas chromatography. 用气相色谱法测定了田间试验中20%25三唑磷乳油在稻田水、植株、土壤、稻壳和糙米中的残留。
- The soil in that county is very poor. 那个县的土壤十分贫瘠。
- In the same times, the degradation and residue of chlorpyrifos in rice field, the questions on the application researc... 同时文章还讨论了毒死蜱在稻田生境中降解残留、使用安全性及应用研究中存在的问题。
- Juncellus serotinus (Rottb.)and Sagittaria pygmaea Miq.are very common co-existence weeds in rice field and can cause great damage to rice grwoth. 水莎草+矮慈姑是稻田常见的杂草组合,对水稻生长有较大的危害。
- Underground water quality in rice field under plastic film mulching cultivation was monitored during rice growth period. 对水稻覆膜旱作条件下稻田地下水水质变化作了动态检测。
- Moreover, the farmer's spray pattern frequently use too much pesticide in rice field, doutlessly it disbenefit on the safe of ecological environment. 此外“农民自防”模式用药量大、频次高,对生态环境和农药残留产生不利影响。
- To plough a field is to turn over the soil in it with a plough. 耕田就是用犁翻田中的土壤。
- It is the safest herbicide for the control of grass weeds in rice field and it will not be phytotoxic to rice in all cultivation forms from seedling to jointing stage. 是对水稻安全性最高的禾本科除草剂。各种栽培方式的水稻由苗期到拔节期使用都不会产生药害。
- He is loosening the soil in his garden. 他在花园中松土。
- The seeds of democracy found fertile soil in China. 中国有着可供民主的种子生长的肥沃土地。
- Hordes of locusts the crops in tracts rice field. 成群成群的蝗虫毁灭了大片大片的稻田庄稼。
- The weeds in rice field. 农田杂草。
- The applied science of soils in relation to crops. 土壤学和作物相关的应用土壤学