| 1. | Climatic conditions analysis of the double - harvest rice transplantation
双季稻抛秧栽培的气候条件分析 |
| 2. | Economic benefit analysis of ratoon rice cultivated model for double - harvest rice displant
双季稻改再生稻栽培模式的技术经济效益评价 |
| 3. | Harvesting technology in double - harvest rice regions and r amp; d of combine harvesting machine
双季稻区收获农艺及先进适用联合收割机型谱 |
| 4. | The ecological implication of this life history strategy of rice water weevil was discussed
文中讨论了双季稻区稻水象甲生活史对策的适应意义。 |
| 5. | Theroy and techniques of vigorous root - strong culm - weighty panicle cultivation method for double cropping rice
双季稻旺壮重栽培法的理论与技术 |
| 6. | However , the rate of rice - transplanting by machine was at a low level , only 2 . 8 percent in our country at present . it was mainly due to the low reliability of the rice transplanter produced in our country . moreover , the price of foreign high - speed rice transplanter was high and they could not fit the high rice seedlings of the autumn season in the south of china
如果我国插秧机械化水平提高1 ，每年就能增产粮食3 . 75亿kg ，但目前我国的机插率只有2 . 8 ，其主要原因是国产插秧机的可靠性低，而进口的高速插秧机价格太高且对我国南方双季稻的晚稻大苗栽插适应性差，因而研究适合我国国情的高速水稻插秧机势在必行。 |
| 7. | Abstract : the investigation of summer migration of rice water weevil lissorhoptrus oryzophilus kuschel in double cropping rice area of zhejiang province in 1994 and 1995 indicated that the main cause of its always low population density in second generation is that most of the adults of first generation emigrated from early rice fields for summer and winter hibernation
文摘:研究表明，浙江省双季稻区稻水象甲二代虫量低的首要原因是绝大部分一代成虫迁出早稻田夏蛰并越冬，构成二代虫源的比例极微。 |
| 8. | The investigation of summer migration of rice water weevil lissorhoptrus oryzophilus kuschel in double cropping rice area of zhejiang province in 1994 and 1995 indicated that the main cause of its always low population density in second generation is that most of the adults of first generation emigrated from early rice fields for summer and winter hibernation
研究表明，浙江省双季稻区稻水象甲二代虫量低的首要原因是绝大部分一代成虫迁出早稻田夏蛰并越冬，构成二代虫源的比例极微。 |
