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- Rice planthoppers is a kind of major rice pests at Hezhou City.In last decade, its large-occurring frequencies of main harm generation and hypo-harm generation have an aggravating tendency. 摘要稻飞虱是贺州市水稻重要害虫之一,近十年来主害代大发生频率及次害代发生频率均有加重的趋势。
- The occurring stage of rice planthopper in the paddy with or without cultural crab was similar. 养蟹田和非养蟹田稻飞虱的发生期基本一致。
- 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。
- The disastrous rule of rice planthopper occurrence in Jianghuai rice region and its forecast techniques were studied. 研究了江淮稻区白背飞虱和褐飞虱的成灾规律,以及稻飞虱灾变的短、中、长期预测技术。
- Climatology of Low-level Jet and Northward Migration of Rice Planthoppers 我国低空急流的时空分布与稻飞虱北迁
- The relationship of the distribution of rice planthopper and the distance of crab breeding line in the paddies with cultural crab was markedly positive. 养蟹田稻飞虱的分布与距养殖沟的距离呈显著的正相关。
- One of the most safe, economical and efficient strategies to control rice planthopper is application of varietal resistance. 实践表明,选育和利用抗虫品种是防治虫害最为安全、经济、有效的措施之一。
- The role of predators in controlling rice planthopper was theoretically studied according to the analysis of their space, and time-space niches. 对稻飞虱及其节肢类捕食性天敌的空间、时间及时间-空间生态位置关系进行分析, 从理论上说明了捕食性天敌对稻飞虱的控制作用。
- Based on the habit and the occurrence fluctuations of rice planthopper, some aspects should be analyzed in rice planthopper forecast.The first is the induction of light trapping. 根据稻飞虱的生活习性和发生规律,在做预报时,对下列几个问题应进行具体分析。
- Rice planthopper is one of the major pests in production, which has the tendency of big-occurrence in recent years and endangers grain production greatly. 摘要稻飞虱是水稻生产上的主要害虫之一,近年来发生程度具有日趋严重的趋势,对粮食生产造成较大的威胁。
- Rice is the chief crop in most southern provinces. 稻子是大多数南方省份的主要作物。
- Do you prefer to have rice or buns? 你愿意吃饭还是吃馒头。
- After harvest we will have a mass of rice. 秋收后,我们将获得大量稻谷。
- Chinese food is often served with rice or noodles. 中餐常有米饭或面条。
- Rice is the chief crop in this ares. 稻子是这一地区的主要作物。
- SEVERAL FACTORS AFFECTING RICE STRIPE VIRUS TRANSMISSION BY SMALL BROWN RICE PLANTHOPPERS 灰飞虱几个传病因素的研究
- Progress in the histological studies of the intracellular yeast-like symbiotes in rice planthoppers 稻飞虱酵母类胞内共生菌的组织学研究进展
- Ulmmeliata insecticeps play a key role controlling rice planthopper in rice field, the relative abundance ofLycosidae was highest in late rice field, but the dominant species was still Ulmmeliata insecticeps. 早稻以皿蛛科的食虫沟瘤蛛占优势地位,晚稻则以狼蛛科的相对丰盛度最高,种类以食虫沟瘤蛛的相对丰盛度最高。
- Rice is our essential foodstuff in life. 大米是我们生活的基本食物。
- Most of the Asians live off rice. 多数亚洲人以大米为主食。
