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- The allelopathic effect of continuous cropping soil of Panax notoginseng was investigated and its mechanism was revealed initially. 摘要探讨三七连作土壤的化感作用,初步揭示三七连作土壤化感作用的机制。
- More allelochemicals were found in continuous cropping soil than those in alternate cropping.Most allelochemicals in continuous and altern... 重迎茬土壤中的化感物质种类多与大豆根系分泌物、根茬腐解产物、地上部水浸物中的化感物质相同。
- Continuously cropped soil 连作土壤
- Effects of Long-term Crop rotation and Continuous Cropping on Phosphorus forms in Different Crop Soil 长期轮作连作对不同作物土壤磷组分的影响
- Continuous cropping soil 连作土壤
- Accumulation of phenolic acids in continuously cropped cucumber soil and their effects on soil microbes and enzyme activities 黄瓜连作土壤酚酸类物质积累对土壤微生物和酶活性的影响
- A kind of phosphate-solubilizing bacteria(PSB)were isolated from coal fly ash and cropping soil respectively,named CA and SL strains. 从粉煤灰和农田土壤中分离筛选出2株解磷细菌CA和SL,以紫花苜蓿为供试植物,通过盆栽试验研究接种解磷细菌对粉煤灰基质的改良作用。
- Different crops have different reactions to continual crops. 不同作物连种后的反应不同。
- Rice is the chief crop in most southern provinces. 稻子是大多数南方省份的主要作物。
- During cropping soil MCP extractable S decreased gradually and the amount of MCP extractable S decreased was greater when planting corn than planting rice. 种植期间土壤MCP-S的含量也是逐渐下降 ,种植水稻时下降的幅度小于种植玉米 ;
- A difficulty has cropped up at work. 工作中突然出现困难。
- The grain crop has gone down this year. 今年的粮食作物产量下降了。
- The soil urease activity and the number of ammonium oxidizing bacteria tend to increase by the continuous cropping years. 随着栽培年限的增加,土壤脲酶活性与氨氧化细菌数量有增大的趋势。
- The subject cropped up as we talked. 我们交谈时无意中涉及到了这个问题。
- A hidden hate cropped out in her words. 她言语中流露出怨恨之意。
- The effects of undecomposable organic materials mixed with biopreparate on the physical and chemical properties of continuous cropping greenhouse soil were studied. 研究了有机物料配合生物菌剂施入塑料大棚连作土壤后,对土壤理化性质的影响。
- Sheep had cropped the grass (short). 羊把草啃(短)了。
- We have had the biggest wheat crop ever this year. 今年我们的小麦收获量是有史以来最好的。
- Analysis using plate count revealed a reduction trend in the number of culturable bacteria both in rhizosphere and bulk soil as Rehmannia glutinosa continuous cropping problem. 结果表明,地黄连作引起土壤根际、根外细菌数量减少;
- The tomatoes have cropped well this year. 今年马铃薯丰收。