| 1. | The suitable water - saving agriculture in china was discussed through the investigation in israel 通过对以色列节水农业的考察,探讨了适合中国国情的节水农业之路。 |
| 2. | Abstract : the suitable water - saving agriculture in china was discussed through the investigation in israel 文摘:通过对以色列节水农业的考察,探讨了适合中国国情的节水农业之路。 |
| 3. | In the past few years , the department has conducted 4 restocking trials with 57 000 fish fry and 1 million prawn fry released in suitable waters with a view to assessing its effectiveness in enhancing fisheries resources 本署于过去数年亦在合适的水域进行了4次放养试验,共投放了57000尾鱼苗和100万尾虾苗,以评估该措施对增加渔业资源的成效。 |
| 4. | In the past few years , the department has conducted 3 restocking trials with 41 000 fish fry and 1 million prawn fry released in suitable waters with a view to assessing its effectiveness in enhancing fisheries resources 本署于过去数年亦在合适的水域进行了三次放养试验,共投放了41000尾鱼苗和100万尾虾苗,以评估该措施对增加渔业资源的成效。 |
| 5. | The maximum influence of drought stage upon rice yield is the jointing - booting stage ; the second influence stage is earing stage and the suitable water deficiency in tillering and filling stage can ' t bring tremendous effects on yield of rice 不同阶段的不同程度受旱对水稻生长发育的影响不尽相同,相同程度受旱对产量影响最大的阶段为拔节孕穗期;抽穗开花期次之,在分蘖期和灌浆期实施一定程度的水分亏缺不会对产量构成较大影响。 |
| 6. | This paper based on the goal of establish properly water saving model , taking economic benefits , environmental benefits and technical feasibility indexes as norm , using analytic hierarchy process to compare the canal seepage control , water conveyance pipe , sprinkler irrigation and microspray irrigation the 4 project technologies of water saving , in order to choose the suitable water saving model 以建立适宜节水灌溉工程体系为目标,以经济效益、环境效益、技术可行性3项指标为准则,采用层次分析法对渠道防渗、管道输水、喷灌、微灌4项工程节水技术进行比选,最后选出适合河北省实际情况的节水灌溉技术。 |
| 7. | This paper firstly introduces basic principle and each using condition of common water - measuring method , analyses main problems during the developing and researching about water - measuring meters and devices in irrigation district , put forward some ideas that combine the practice of irrigation district , choose suitable water - measuring facilities and advance economy development of irrigation district 本文首先介绍了我国常用量水方法的基本原理及其使用条件,分析了当前在灌区量水仪表、设施开发研制方面存在的问题,提出了结合灌区实际,开发新的量水设施仪器,以促进灌区经济的发展。 |