共查询到20条相似文献，搜索用时 500 毫秒
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黑龙江省“水改旱”问题 总被引：1，自引：0，他引：1
针对黑龙江省水稻大面积改种旱田问题，分析了水稻土壤特点以及对旱田作物的影响，并提出了生产上“水改旱”应该采取的技术对策。从长远发展角度，还提出了水稻生产应该注意的问题。 相似文献
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介绍了抗旱水稻“旱优3号”在三亚市的引种试种情况。从该品种在旱田生长的品种特性、节水栽培、产品的市场前景,以及在三亚市旱田推广生产种植的社会效益、生态效益等方面进行了分析和研究,并展望其在三亚的推广应用前景。 相似文献
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我国水稻安全生产问题 总被引：1，自引：0，他引：1
阐述了我国市场对稻米质量的需求变化和优质稻米的特殊商品属性。分析了水稻安全生产中使用化肥、农药、生物技术、生物肥药和稻田选择等相关技术问题。特别是提出了对我国水稻转基因研究和推广中应该注意的问题,以及平衡学科发展确保我国粮食安全对策。 相似文献
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发展绿色水稻产业 促进农业结构调整 总被引：1，自引：0，他引：1
绿色水稻生产是水稻生产的发展方向和趋势,黑龙江省发展绿色水稻生产有着得天独厚的自然环境优势,通过分析绿色水稻特点、生产的现状、存在问题,提出了黑龙江省绿色水稻生产的对策。 相似文献
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磐安县地处浙中丘陵 ,全县有靠天易旱田４２９６ｈｍ２,占水田面积的５７% ,缺水易旱是制约水稻优质高产的主要因素。２０００年磐安县与中国水稻研究所合作 ,引进水稻覆膜栽培技术 ,与常规栽培方法相比 ,靠天易旱田增产３１ % ,冷浸田增产１６．３ % ,旱涝保收田增产１０．６%。２００１年根据磐安县实际情况 ,把覆膜种稻技术主要应用在增产最为明显的靠天易旱田类型上 ,选择磐安县深泽乡下马溪村的一条叫下马坞的山垅里进行覆膜种稻的生产示范。进行覆膜种稻生产示范的有１３户农户 ,１７丘水田 ,面积为０．４３ｈｍ２。试验用地膜采用山… 相似文献
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介绍了黑龙江省绿色水稻生产现状,指出黑龙江省目前存在的农业生态环境日趋恶化、绿色食品水稻生产规模小而分散、农业生产资料市场混乱、绿色优质水稻难优价等问题,并根据问题提出了黑龙江省绿色水稻生产的对策。 相似文献
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扎赉特旗自从推广水稻育苗移栽技术以来，水稻产量有了大幅度提高。但是水稻育苗管理过程与旱田播种同时进行，往往因通风浇水不及时，造成干旱或徒长，使秧苗素质降低，从而引发立枯病，每年都有大面积的损失，致使种稻成本增加。为解决这些问题，扎旗农业技术推广中心引进新型水稻育苗覆盖材料“无纺布地膜复合被”，育苗取得了显著效果。 相似文献
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系统分析了徐州水稻生产现状,针对水稻扩大面积难度大、品种不配套、轻简稻作熟期迟、种稻效益不高等影响因子,提出了实施旱改水,扩大水稻面积;更新配套品种,挖掘增产潜力;手栽改机插,推进全程机械化;严格控制直播,确保稻麦双高产;开展高产创建,增加示范带动效果等对策措施。 相似文献
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不同灌溉方式对水稻生长及产量的影响 总被引：4，自引：0，他引：4
为建立湘南双季稻区节水灌溉栽培模式提供依据,设置了不同灌溉方式对水稻生长发育的影响试验。试验结果表明：不同灌溉方式在水稻生长、干物质积累、生理特性以及产量上都存在显著差异。4种灌溉方式下水稻生长与产量表现以浅水灌溉最优,受旱灌溉最差,与受旱灌溉比,浅水灌溉株高、分蘖数、光合速率均有提高,结实率提高了41.5%,千粒重增加了1.6 g,产量增加了15.8 g/盆;浅水灌溉下水稻产量、灌溉用水利用率分别比深水灌溉高出7.6 g/盆和0.69 kg/m3。间歇灌溉产量与深水灌溉差异很小,但间歇灌溉水分利用率高出深水灌溉0.44 kg/m3。因此,在湘南双季稻区,针对季节性干旱的特点,采用浅水灌溉方式有利于晚稻高产稳产,间歇灌溉有利于晚稻种植。 相似文献
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Integrated physiological and proteomic analyses using japonica rice and glutinous rice were applied to investigate the proteome regulation related to rice yellowing during natural storage. The changes of soluble sugar and soluble protein combined with the up-regulation expression of related proteins indicated the enhancement of carbohydrate, protein and lipid metabolism in yellowed rice. The expression of heat shock protein was up-regulated, indicating that rice yellowing occurred under heat, dry or other abiotic stress. Nevertheless, this study noted that the rice yellowing might be associated with the emergence of secondary metabolites, because the gene ontology analysis showed that the biosyntheses of secondary metabolites and phenylpropanoid were significantly enriched in yellowed rice. Based on above results, a possible proteome regulation of rice yellowing is proposed in the current study. 相似文献
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This study aims to investigate the impact of rice-husk power generation on agricultural uses of rice husk and its ash. We
conducted case studies at a rice-husk power plant and organic farming groups in northeast Thailand. The case study on a rice-husk
power plant showed that rice husk was useful in generating electricity without consuming fossil fuel, while husk ash, the
by-product, could be utilized as silicate supplement for farmland soils. The case study on organic farming groups indicated
that rice husk was one of the indispensable materials in conducting organic farming with locally available resources. On the
basis of these findings, an analytical study on possible husk uses in Thailand was conducted, in which three potential major
uses of rice husk were considered: i.e. (1) fuel use inside rice mills followed by husk-ash reuse, (2) fuel use at power plants
followed by husk-ash reuse, and (3) direct reuse of husk for compost production. The result indicated that there would be
conflicting demands for rice husk among those uses in the future. Therefore, there needs to be a strategy for balancing husk
uses among them. 相似文献
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Michiko Hayano Naoki Horikawa Tsuneo Kuwagata Jun Furuya Yasushi Ishigooka Toshihiro Hasegawa Tomoyuki Taniguchi Akira Shimizu Hitoshi Toritani Minoru Tada Takao Masumoto 《Paddy and Water Environment》2008,6(1):15-23
This paper introduces the Agriculture, Forestry and Fisheries Research Council of Japan (AFFRC) model, an integrated model
that predicts future rice production in the Mekong River basin by taking into account the effect of global warming on both
the water cycle and the rice economy. The model focuses especially on the water balance of paddy fields for different farmland
water use systems. We defined six categories of irrigated paddies and three categories of rain-fed paddies on the basis of
their systems of water usage. We included a process-based model to predict future rice production, accounting for daily changes
in available water resources such as precipitation. Many models of crop production treat rice in the same way as other crops;
the particular characteristics of rice farming are considered in more detail in our model. Our results show that it is possible
to estimate future rice production in the Mekong River basin by taking into account changes in available water, and to model
the resultant effects on the grain market. 相似文献