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paddy field
    Compared with standard(0.20 mg/kg),20%,18.75%,11.11% and 9.09% in mid-yield paddy field,low-yield paddy field,garden land and vegetable land soil samples,exceeded the standard limit.
    与土壤标准值(0.20 mg/kg)相比,中产水稻田有20%样点超标,低产水稻田、园地、菜地分别有18.75%、11.11%、9.09%样点超标,而高产水稻田和荒地没有超标样点。
    Field experiment result showed that N3O flux from the GCRPS paddy field (0.96 mg-m-2.h-1) was significantly higher than that of the normal waterlog paddy field (0.052 mg. m-2.h-1).
    结果表明,大田水稻全生育期内覆膜旱种稻田N2O的平均排放量(0.96ug.m2.h-1)远远大于常规水稻田的排放量(0.052ug.m-2.h-1)。
    Dynamic Characteristics of Phosphorus in Surface Water of Paddy Field and Its Potential Environmental Impact
    水稻田表水磷素的动态特征及其潜在环境效应的研究
    The dynamic characteristics and modeling of nitrogen in paddy field surface water and nitrogen loss from field drainage
    水稻田面水氮素的动态特征、模式表征及排水流失研究
    The arthropod community stabilities and diversities in the Bt rice paddy field with different patch designs
    Bt水稻田不同斑块设计对田间节肢动物群落稳定性的影响
    Variations of Nitrogen and Phosphorus in Surface Water Body of a Paddy Field
    水稻田面水中氮磷素的动态特征研究
    STUDY ON SPRAYING FILM OF LIQUID MOLECULAR IN PADDY FIELD WITH TECHNIQUES OF BOTH NITROGEN FERTILIZER AND WATER SAVING
    水稻田喷施液态分子膜及节氮节水技术研究
    The results indicated that amounts of CO 2 released from soil in a year were 5.799 kg5m -2 in maize field, 4.176 kg5m -2 in citrus garden, 3.388 kg5m -2 in paddy field and 3.119 kg5m -2 in Chinese fir forest respectively.
    4种土地利用方式下CO2 年排放总量从高到低依次为玉米地 5 799kg·m- 2 、柑桔园 4 1 76kg·m- 2 、水稻田 3 388kg·m- 2 、杉木林3 1 1 9kg·m- 2 。
    the contents of Al-P and Fe-P were increased when 1/2OM+NPK was applied to paddy field. It was beneficial for rice absorption of Al-P and Fe-P when the NPK was applied to paddy field.
    1/2OM+NPK处理能增加水稻田土壤中的Al-P和Fe-P含量,而施用NPK肥有利于水稻对Al-P和Fe-P的吸收,因为NPK处理的土壤中Al-P和Fe-P含量只比CK大而比其它处理低;
    Phosphorus behavior in soil-water system of paddy field and its environmental impact.
    水稻田土-水系统中磷素行为及其环境影响研究
    Paddy field quality and precision agriculture at moderate scale.
    中尺度上水稻田质量与精确农业
    Application of A New Slow-release Urea Inhibitor in Paddy Field
    水稻田施用新型尿素缓释剂的效果研究初报
    Advance on Nitrogen-fixing Green Blue algae of Rice Paddy Field
    水稻田固氮蓝藻的研究进展
    So, understanding the spatial and temporal variability of soil nutrients in paddy field is the foundation of precision agriculture management.
    因此,了解该区水稻田土壤养分的空间和时间变异是精确农业管理的基础。
    While many studies have been carried out at a small scale, relatively few have been done at large scale, especially on paddy field. Geostatistics and GIS were used in this study to analysize the spatial and temporal variability of soil nutrients in paddy field and their mechanism under three different scales of HJH Plain (1:250000), Pinghu county (1:50000) and Tongxin test plot area (1:2000), meanwhile, the regionalized management was brought forward in this study.
    本研究应用地统计学和GIS技术相结合的方法,以南方水稻田为研究对象,选择1:250000杭嘉湖平原、1:50000平湖市、1:2000同心村试验小区三个不同尺度研究区域,分析了水稻田土壤养分的时空变异及其机理,并进行不同尺度管理分区模式探讨。 主要研究结果如下:
    The main results obtained are summarized as follows:1. Spatio-temporal variability of soil nutrients in paddy field in HJH PlainThe contents of soil organic matter (SOM), total nitrogen (TN) and available phosphorus (AP) in HJH Plain increased from 1982 to 2001, whereas, that of AK decreased dramatically.
    1.杭嘉湖平原水稻田土壤养分时空变异 2001年杭嘉湖平原水稻田土壤有机质、全氮、有效磷含量均比1982年第二次土壤普查时有所提高,而速效钾含量有大幅下降。
    This paper studied the storage and dynamics of soil nutrients at the Shenyang Experimental Station of Ecology, Chinese Academy of Sciences (41°31′N, 123°22′E), aimed to explore the nutrients distribution in soil profile under four land use patterns over 14 years. The four land use patterns are paddy field (PF), maize field (MF), fallow field (FF) and woodland (WL).
    为探索土地利用方式变更对土壤营养元素剖面分布的影响,本文对中国科学院沈阳生态实验站(41°31′N, 123°22′E)的水稻田、玉米地、撂荒地和人工林地0~150 cm土体10 个土层中土壤营养元素含量的剖面分布、储量等进行了比较研究。
    Because there is standing water in the paddy field and irrigation return flow or other runoff enter other water bodies via channel, it is thought that irrigation water is wasted. However, at a larger scale, most discharged water has been reused.
    水稻田由于长期淹水并且将灌溉余水或田间径流量由渠道排入其他水体,造成灌溉用水给外界有浪费的印象,但是大范围来看,被排出的水大部分均得到了重复利用。
    An attempt has been made to characaterize spatial distribution and genetic diversity of microorganism resource, paritcularly nitrogen fixing organisms in paddy fields in Fujian Province in order to develop and utilize the biological nitrogen fixing resources in paddy field in Fujian Province and to reduce the input of chemical fertilizer and energy.
    为了开发利用福建省稻田生物固氮资源,减少化肥使用量和能源成本,本研究对福建省五个地区的水稻田土壤中微生物资源,尤其是固氮微生物资源的空间分布特点及其多样性进行了探索。
    Comparing with the species of spider in rice field it was shown that most species could be found in the paddy field, and only few species didnot inhabitat in the paddy field.
    与水稻田蜘蛛比较,发现蕉园中大多数蜘蛛种类与稻田的相似,仅少数种类是稻田中未有的。
 

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