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宁夏回族自治区位处祖国西北边疆,土地资源丰富。遵照伟大领袖毛主席"备战、备荒、为人民"的伟大教导,为了查清当地的土地资源,提出合理利用土地和改良土壤的措施,以促进社会主义农、林、牧业的全面发展,宁夏回族自治区农业局综合勘查队正分期开展宁夏土壤勘查工作。 相似文献
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宁夏固原地区(包括固原、海原、西吉、隆德、泾源五县)和盐池、同心二县的南部,为我国黄土高原的一部分,土壤侵蚀严重,已成为导致生态环境恶化,影响农林牧业发展的主要因素。在土壤普查中调查研究土壤侵蚀,编制土壤侵蚀图,对开展水土保持工作,发展农、林、牧业生产具有重要作用。 相似文献
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土壤分类是土壤科学理论水平的标志,土壤分类学的发展必须集中土壤学各分支学科的新成就,同时土壤分类学的状况又常影响或限制着土壤学的其他分支学科的发展和土壤的农、林、牧业综合利用,因而研究和发展我国的土壤分类学不仅是提高土壤科学理论水平的需要,也是当前发展生产的迫切需要。 相似文献
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为改善辽宁省风沙区内生态环境、扭转水土流失严重局面、合理利用水土资源、推进风沙区经济的发展和人民生活水平的提高,开展辽宁省风沙区水土保持规划研究。该规划以民生改善、农民收入增加、良好生态环境维系为落脚点和出发点,同时以体制机制创新和先进科技为动力,以小流域为单元,坚持工程措施、植物措施和农业技术措施科学配置,开展综合治理,实现水土资源的可持续利用和生态环境的可持续维护,同时,采取同步监督机制,边治边管,确保治理成果全面发挥效益,努力争取把风沙区各小流域建成农、林、牧业产销基地,促使风沙区广大农民致富。在措施布局上,采取了山、水、林、田、路综合治理,提高土地有效利用率等多重措施。 相似文献
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<正>作为我国社会发展与民族文明的起点,农业不能退出社会产业结构,农业的发展以及相关技术人才培养也应该引起重视。农业、牧业是世界文明起源的两大来源,农、牧业不仅是世界文明历史的古老文化,还是现代社会生存的必要需求。在跨越旅游经济、产品营销、技术研究等多领域之下,农、牧业的发展不再局限于一个国家,各国之间的农牧合作以及农牧研究产生了合作交流,加上现代农村地区旅游产业的开发,商务英语在农业和牧业发展中越发不可或缺。为应对农业和牧业的发展要求,急需树立高度的商务英语人才培养态度,在农牧类职业技术学校中设立相应的商务英语课程,保障农牧产业的人才需求和经济需求。笔者在主持2020年浙江省商业经济学会立项课题项目(2020SJZD09)的过程中,就农牧类高职技术学校商务英语人才培养现状及未来发展做了认真思考,并研读了《现代农林英语》一书,认为农牧高职院校展开商务英语人才培养的第一步是强化农业和牧业的专业素质知识,在此基础上再进行商务英语教学。《现代农林英语》以学生的综合英语应用能力为重点, 相似文献
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建国三十二年来水利水保工作的实践证明,山区建设和发展农、林、牧业,首先要解决水的问题。正如前人所说:“有水斯有土,有土斯有民。”水、水分、水气是农林牧业生产的先决条件,水不足则干旱,过多则为洪涝灾害。针对宁夏南部山区水、土、热资源,及三十二年来的成败经验与教训,解决山区缺水问题,概括为 相似文献
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Kholodov V. A. Farkhodov Y. R. Yaroslavtseva N. V. Ziganshina A. R. Maksimovich S. V. 《Eurasian Soil Science》2022,55(7):998-1004
Eurasian Soil Science - Layers were step-by-step removed from macroaggregates (2–1 mm in diameter) of Protocalcic Chernozems via successive abrasion in a revolving rotator during 5, 10, 15,... 相似文献
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姬松茸多糖提取工艺的优化 总被引:8,自引:0,他引:8
对姬松茸子实体多糖提取的工艺条件中的多糖提取温度、提取时间、浸提液pH值3因子的最优化组合问题进行了定量研究,建立了具有良好预测性能的姬松茸多糖提取条件的模型,并利用回归模型对工艺条件的最优化组合,对各单因子要素的多糖得率及其交互作用进行了探讨。试验表明,当浸提温度为100℃、浸提时间为3h、浸提液pH值为6.3时多糖得率处于较高水平 相似文献
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Suyundukov Ya. T. Suyundukova M. B. Bezuglova O. S. Khabirov I. K. Khasanova R. F. Semenova I. N. Rafikova Yu. S. Ilbulova G. R. 《Eurasian Soil Science》2022,55(1):27-35
Eurasian Soil Science - The results of the study of the properties of urban soils of the city of Sibay located in the mining region of the Republic of Bashkortostan are presented. A specific... 相似文献
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《Communications in Soil Science and Plant Analysis》2012,43(15-16):1631-1646
Abstract Brazil has approximately 30 million hectares of lowland areas, known locally as “Varzea,”; distributed throughout the country. Soils in these areas have the potential to support agricultural production, but very little is known about their fertility. The current experiment was undertaken to characterize the chemical and physical properties of representative “Varzea”; soils collected at 0–20, 20–40, 40–60, and 60–80 cm depth intervals from 23 sites in Goias State of Brazil. Organic matter contents averaged 42 g/kg in the surface 20 cm of soil and should make a significant contribution to overall nutrient availability. Soil pH increased slightly with depth from a mean value of 5.2 in the surface 20 cm of soil to a mean value of 5.4 in the 60–80 cm depth interval. Several soils had exchangeable Al values ≥ 1.0 cmol Al/kg, but soil Al saturation was generally less than the 60% level frequently associated with Al toxicity. However, cereal and legume production could benefit from lime addition in many of these soils. Although base saturation was fairly low in some soils, exchangeable Ca and Mg levels were, in general, adequate throughout the profile. Extractable P levels were adequate in most surface soil samples. Extractable K levels in these soils were generally low, and the application of K fertilizers should be beneficial, especially in conjunction with lime addition. The high clay content “Varzea”; soils of the Brazilian lowlands have some drainage problems but generally exhibit favorable chemical properties for crop production when compared to soils of the well‐drained Cerrados. 相似文献
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Ye. V. Rogozhina N. V. Kostina L. S. Malyukova 《Moscow University Soil Science Bulletin》2011,66(1):32-35
An estimation of potential nitrogen-fixing activity of various soil types under agrophytocenoses of tea, filbert, peach, and
pawpaw which grow in the area of Greater Sochi is given. High indicators of nitrogen fixation activity in the soil in the
course of vegetation were characteristic of agrocenoses of pawpaw, peach, and filbert. The lowest level of nitrogen fixation
was noted in the soil of a tea plantation. A negative correlation dependence of potential nitrogen-fixing activity on the
acidity of the soil solution was established. A study of the seasonal dynamics of the activity of nitrogen fixation of soils
of agrocenoses of the subtropical zone of Russia made it possible to distinguish a less active winter and more active spring-summer-autumn
periods. 相似文献
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植物恢复措施对鸡西矿区废弃地土壤养分的影响 总被引:2,自引:0,他引:2
以黑龙江省鸡西市矿区废弃地为研究区,对不同矿区废弃地的土壤养分元素进行含量分析。结果表明:应用植物恢复措施后的基质土壤各养分指标绝大多数要大大高于原废弃地土壤和经过自然恢复的土壤,说明该措施对石墨尾矿、矸石发电厂粉煤灰废弃地和平排矸石山土壤养分改善效果明显;其中石墨尾矿除全磷外,各种养分指标与林地土壤差距较大,而旱柳对石墨尾矿土壤的改善效果最好,其有机质含量为37.28g/kg,是残渣的2.6倍;种植大果沙棘对粉煤灰废弃地土壤养分的积累效果明显,有机质含量为48.25g/kg,是残渣的1.5倍;植物恢复措施使平排矸石山的土壤养分积累速度加快,已接近林地,混交种植兴安落叶松和家榆总体恢复效果最好,有机质含量分别为193.42和151.46g/kg,是自然恢复条件下的8.9和7倍。建议引入优势种群(如松科等)以加快演替速度,使矿区废弃地更快地恢复到原始状态。 相似文献