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种植     
相关语句
  planting
    ON TOBACCO PLANTING AND CAPITALISM BUDDING IN CHINESE AGRICULTURE
    烟草种植与中国农业资本主义萌芽的关系
短句来源
    STUDIES ON THE BIOLOGY AND APPLICATION OF THE CROPPING SYSTEM ON THE UPLAND RED SOIL IN SOUTHEAST CHINA Ⅴ Studies on the Comprehensive design of planting grass and breeding livestock on the wasteslope of upland red soil
    中国东南部红壤旱地种植系统的生物学及其应用研究——Ⅴ红壤荒坡种草养畜的综合规划研究
短句来源
    The Applicable Effect of Ap-2 Aspergillus Niger Dissolve Phosphorus Microorganism in the Planting Tobacco
    Ap-2号溶磷菌Aspergillus niger在烟草种植上的应用效果
短句来源
    Research on the Planting Green Manure in the Eroded Granite Mountain District
    花岗岩侵蚀区山地绿肥种植试验研究
短句来源
    to develop diversified planting structure;
    发展多样化的种植结构;
短句来源
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  plant
    In order to avoid excess soil vailable P,the scale pig farms use biogas slurry to plant ryegrass. In the ryegrass planting period(210 d),a dosage for applied biogas slurry should be less than 8 378 kg per 666.7 m2,which equals to a stocking rate as 2.22 pigs per 666.7 m2.
    为避免因土壤中速效P的过剩,规模养猪场利用沼液种植黑麦草,在黑麦草种植期(210 d)内,沼液施用量应当控制在每666.7 m28 378 kg以内,相当于土地载畜量每666.7 m2承载2.22头猪。
短句来源
    CIS-Aidel Studying Agricultural Plant Utilization Zone
    地理信息系统辅助下的农业种植利用分区研究
短句来源
    Optimization Design on Plant Construction in Teaching Experimental Farm of Shihezi University
    石河子大学教学实验农场种植结构优化设计
短句来源
    Transgenic Bt rice have no significant effect on target pests and natural enemies in 1/5 and 1/10 plant ways, considering economical factor non-Bt Rice can be planted in 1/10 area when transgenic Bt Rice are planted commercially.
    由此可见,在1/5种植方式和1/10种植方式下,转基因水稻上靶标昆虫和其他主要害虫及天敌无显著影响。
短句来源
    Corn plant is able to prom-ote the transformation of soil Zn to RES-Zn and CA-Zn.
    种植玉米促进了土壤锌向RES-Zn和CA—Zn转化。
短句来源
更多       
  cropping
    Dynamic Modeling for Soil Organic Carbon and Its Application under Intensive Cropping Systems in the Huang-Huai-Hai Plain of China
    黄淮海平原集约种植条件下土壤有机碳动态建模及应用
短句来源
    ENERGY TRANSFERRING STATUS OF CROPPING SYSTEMS IN TAIHU DISTRICT OF JIANGSU PROVINCE
    江苏太湖地区几种种植制度的能量转换状况
短句来源
    STUDIES ON THE BIOLOGY AND ITS APPLICATION OF THE CROPPING SYSTEM ON THE UPLAND RED SOIL IN SOUTHEASTERN CHINA Ⅱ A Study on the Microflora and Crop Yield Potential in the Grass planted Sloping Wasteland
    中国东南部红壤旱地种植系统的生物学及其应用研究——Ⅱ.红壤荒坡种草的微生物区系与作物生产潜力的初步研究
短句来源
    STUDIES ON THE BIOLOGY AND APPLICATION OF THE CROPPING SYSTEM ON THE UPLAND RED SOIL IN SOUTHEAST CHINA Ⅴ Studies on the Comprehensive design of planting grass and breeding livestock on the wasteslope of upland red soil
    中国东南部红壤旱地种植系统的生物学及其应用研究——Ⅴ红壤荒坡种草养畜的综合规划研究
短句来源
    STUDIES ON THE BIOLO GY AND THE APPLICATION OF THE CROPPING SYSTEM ON THE UPLAND RED SOIL IN SOUTHEAST CHINA——Ⅵ. Preliminary studies on the activity of soil enzymes and soil microbial biomass of orchards on the upland red soil
    中国东南部红壤旱地种植系统的生物学及其应用研究——Ⅵ 红壤果园土壤酶活性与土壤微生物生物量研究初报
短句来源
更多       
  planted
    STUDIES ON THE BIOLOGY AND ITS APPLICATION OF THE CROPPING SYSTEM ON THE UPLAND RED SOIL IN SOUTHEASTERN CHINA Ⅱ A Study on the Microflora and Crop Yield Potential in the Grass planted Sloping Wasteland
    中国东南部红壤旱地种植系统的生物学及其应用研究——Ⅱ.红壤荒坡种草的微生物区系与作物生产潜力的初步研究
短句来源
    Efficiency Research of Planted Rice Area Estimation From NOAA AVHRR Data in Taihu Domain
    太湖地区NOAA—AVHRR资料估算水稻种植面积的有效性探讨
短句来源
    Impact of Planted Hybrid Rice on Methane Emission and the Methanogens of Paddy Soil.
    种植杂交稻对甲烷排放及土壤产甲烷菌的影响
短句来源
    Transgenic Bt rice have no significant effect on target pests and natural enemies in 1/5 and 1/10 plant ways, considering economical factor non-Bt Rice can be planted in 1/10 area when transgenic Bt Rice are planted commercially.
    由此可见,在1/5种植方式和1/10种植方式下,转基因水稻上靶标昆虫和其他主要害虫及天敌无显著影响。
短句来源
    The av-erage N reserve in the cultivated soils of this area is 1749. 43 kg/hm ̄2·a. The soils in whichpotatoes, cotton and sorghum are planted have higher N reserve, which are 3037. 5kg/hm ̄2·a, 2027. 5kg/hm ̄2· a and 2317. 5kg/hm ̄2· a respectively.
    本区耕作土氮的平均库存量为1749.43kg/hm ̄2·a,以种植马铃薯、白菜、高粱的土壤的氮库存量较高,分别为3037.5、2027.0、2317.5kg/hm ̄2·a;
短句来源
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  planting
The influence of woodland soil bulk density on the growth and distribution of fine root system of main planting tree species in the Weibei Loess Plateau was investigated by means of pot culture and field survey.
      
Besides, runoff and sediment produced in mixed planting of apple trees and crops were 16.14-fold and 2.96-fold than those of O.
      
Container stecklings are more likely to increase the planting survival rate.
      
Therefore, it is important to consider planting densities on the hillsides with slope gradients less than 10° for reconstructing vegetation.
      
To improve soil quality and maintain sustainable productivity, some measures, including planting mixed conifer with hardwood, preserving residues after harvest, and adopting scientific site preparation, should be taken.
      
更多          
  plant
cyclotriazadisulfonamides), viral envelope gp120-binding agents such as plant lectins and glycopeptide antibiotics, HIV integrase inhibitors such as the pyranodipyrimidine V-165, and two new classes of compounds (i.e.
      
The last one is being reported for the first time from this plant.
      
Aqueous extract of the medicinal plant Mentha crispa alters the biodistribution of the radiopharmaceutical sodium pertechnetate
      
The result is significant because the previous conclusions are only applied to open-loop stable plant (or model).
      
In this article, a method for quantitative determination of phytochelatins (PCn being the classic example) and other thiol-containing compounds in mixed standard solution and plant tissues is presented.
      
更多          
  cropping
An experimental study on mitigation of greenhouse gas (CH4, N2O and NO) emission has been conducted in a typical cropping system of Southeast China for 4 years.
      
The experimental results show that this method can survive image cropping and image compression, and get better results, this is also a prospective method.
      
This technique produces a watermarked image that closely retains the quality of the original host image while concurrently surviving various image processing operations such as lowpass/highpass filtering, lossy JPEG compression, and cropping.
      
The actual watermark embedding in spatial domain is followed using permutated image for improving the resistance to image cropping.
      
A new site-specific nutrient management approach was developed to break the apparent attainable yield barrier of 6 t·ha-1 in the double rice cropping system of Zhejiang.
      
更多          
  planted
Baldcypress should not be planted in drought-stricken soils.
      
With all the above techniques, 48 hm2 of clonal forests for pulp use of those clones had been planted in five places in Fujian Province.
      
lanceolata plantation replaced the native broadleaved forest, or Chinese fir was planted continuously.
      
In case it is planted in drought conditions, this tree species should be watered appropriately in order to keep its normal net photosynthetic rate.
      
To determine the impact of photosynthesis and transpiration on nitrogen removal in wetlands, an artificial wetland planted with reeds was constructed to treat highly concentrated domestic wastewater.
      
更多          
  其他


Annual rotation of a winter crop with the summer rice is a common agricultural practice in Chekiang province. The rotation system is in variant with regard to the winter crops. In order to evaluate the effect of different winter crops on the state of soil aggregation, the present study was undertaken. Four green-manuring crops including Astragalus sinicus, Medicago denticulata, Vicia faba and Pisum sativam, two winter grain crops including wheat and barley, and one oil-bearing crop, rape, were chosen for rotation...

Annual rotation of a winter crop with the summer rice is a common agricultural practice in Chekiang province. The rotation system is in variant with regard to the winter crops. In order to evaluate the effect of different winter crops on the state of soil aggregation, the present study was undertaken. Four green-manuring crops including Astragalus sinicus, Medicago denticulata, Vicia faba and Pisum sativam, two winter grain crops including wheat and barley, and one oil-bearing crop, rape, were chosen for rotation with the summer rice in the field. The soil under experimentation has been developed under cultivation from an alluvial parent material of fine sandy loam. The field had a water-table lying at a depth of about one meter from the top of the soil throughout the year except during rice growing season. As a check for comparison, winter fallow following rice was also included among the field treatments. Experiments are continued through five consecutive crop seasons, including two in rice and three in winter crops. Among the results, the following may have practical significance in evaluating the various systems of annual rotation for rice field: 1. Among the rotating winter crops tested, Astragalus sinicus is most effective in promoting the formation of soil aggregates having 1-5 mm. in diameter which are believed to be beneficial for rice cultivation. Other leguminous crops also show their constructive effect on soil aggregates, but are by far inferior to the Astragalus. To the contrary, soils under winter grains and the rape tend to deteriorate in their aggregation. 2. Close parallel relationship is found between the soil organic matter content and the percentage content of soil aggregates having 1-5 mm. in diameter. 3. The structural units with diameters larger than 5 mm. seem to be different in nature from those aggregates having 1-5 mm. in diameter. For rice soils, such large structural units are believed to be of little practical importance in so far as their fertility status is concerned, since they are to be disintegrated during the cultivation of rice.

四、摘要本試驗的一年轮作制,包括單季水稻与下列冬作的轮栽:紫云英,苜蓿,蚕豆,豌豆,油菜,小麦及大麦。另以冬季休閑作为对照。經过三次冬作,二次水稻(夏作)的轮栽,結果显示: 1.冬季种植一年生荳科綠肥,能够增加土埌中有机質含量。其中以紫云英最佳;苜蓿,蚕豆,豌豆等次之。 2.在水稻与紫云英轮作的土埌中,直徑为1—5毫米的团粒含量有显著的增加。水田中的其他荳科綠肥,如苜蓿,蚕豆,豌豆等,也能維护土埌中的团粒構造,但其效果較差。水田中禾谷类冬作轮栽或油料作物轮栽,对于土埌中直徑为1—5毫米的团粒含量,均有破坏的影响。 3.各輪作区,凡土埌有机質含量較高的,其直徑为1—5毫米的水稳性团粒也比較多;而其他大小的構造單位,和有机質的多少无关。

~~

1.种稻改良盐渍土的实质在于灌溉淡水下渗可淋洗土壤中盐分,并形成地下水淡水层。淡水下渗数量及高矿化地下水的排除是影响土壤脱盐及地下水淡水层形成的主要因素。2.目前河北滨海地区所设的末级固定浅排水沟只能影响上层土体的水盐运动,不能调节高矿化地下水;排水干沟虽然可起调节地下水运动的作用,但因间距过大不能控制整个灌溉地段,因而建議末级固定排水沟采用深浅沟相结合的布置形式,以利于保存淡水和排出高矿化地下水,而建立淡水层。3.水田转为旱作后,水盐动态的调节主要是減少淡水层的消耗,防止土壤返盐,主要措施有:末级固定渠系的深沟进行排水,控制地下水位在一定深度;进行秋耕、中耕、灌溉减少地下水蒸发。4.稻田周围地区水盐动态的变化主要是由于稻田下渗水的侧渗及稻田高水头的静水压力作用,引起周围地下水抬高,从而导致沼泽化和盐渍化的加重。所以,必需合理的配置稻田,并于水旱交界处设“两河一路”形式的排水沟。5.种植水稻可以在较低标准的人工排水条件下使土壤脱盐并建立地下水淡水层,为转入旱作创造条件。水田改为旱作可消除长期淹水对土壤产生的不良影响,提高肥力。水旱输作可使地下水淡水层厚度逐渐稳定,而使土壤达到稳定脱盐。排水种稻实施...

1.种稻改良盐渍土的实质在于灌溉淡水下渗可淋洗土壤中盐分,并形成地下水淡水层。淡水下渗数量及高矿化地下水的排除是影响土壤脱盐及地下水淡水层形成的主要因素。2.目前河北滨海地区所设的末级固定浅排水沟只能影响上层土体的水盐运动,不能调节高矿化地下水;排水干沟虽然可起调节地下水运动的作用,但因间距过大不能控制整个灌溉地段,因而建議末级固定排水沟采用深浅沟相结合的布置形式,以利于保存淡水和排出高矿化地下水,而建立淡水层。3.水田转为旱作后,水盐动态的调节主要是減少淡水层的消耗,防止土壤返盐,主要措施有:末级固定渠系的深沟进行排水,控制地下水位在一定深度;进行秋耕、中耕、灌溉减少地下水蒸发。4.稻田周围地区水盐动态的变化主要是由于稻田下渗水的侧渗及稻田高水头的静水压力作用,引起周围地下水抬高,从而导致沼泽化和盐渍化的加重。所以,必需合理的配置稻田,并于水旱交界处设“两河一路”形式的排水沟。5.种植水稻可以在较低标准的人工排水条件下使土壤脱盐并建立地下水淡水层,为转入旱作创造条件。水田改为旱作可消除长期淹水对土壤产生的不良影响,提高肥力。水旱输作可使地下水淡水层厚度逐渐稳定,而使土壤达到稳定脱盐。排水种稻实施水旱輸作是改良利用滨海盐渍土的有效途径。但应根据地形、水文地质、土壤及水源条件,区分为常年稻作、水旱输作及水旱输作后改为常年旱作三种情况,其所采用的水盐调节措施亦应有所不同。

~~

内蒙大小黑河流域属干草原地带,三面都有山地和丘崗包围,高地岩石风化释放的盐类随径流汇聚而下,再以地势低平,排水不暢,地下水埋藏较浅(2—3米),地下水矿化度为0.5—5克/升,并多含有碳酸根。这些情况都是苏打盐土的形成因素。苏打的来源可能主要为次生黄土台地和平原所埋藏的湖相沉积物中含有苏打,其次为来自大青山地区岩石的风化。现代沼泽洼地和新干涸的洼地的边缘也积累有苏打,这可能是硫酸钠的生物化学还原作用的结果。苏打草甸盐土可演变为碱化土壤,如经利用可变为埋藏性苏打盐化草甸土。大小黑河流域中的苏打盐土多属氯化物苏打盐土。这种盐土的特性是:可溶盐较少,表层约1%左右,碳酸根含量大于0.5毫克当量,钠鉀离子占阳离子总量90%以上,pH大于10,土壤几乎不含石膏,交换性钠占全部交换量60—80%;有机质约0.3%左右,水溶性有机质占有机质总量4—5%;易溶性SiO_2含量每百克土中约0.7—0.8%;一般质地较粗,土壤自然含水率和毛管水含量都较低,土壤易于干燥,结持力大,见水易于分散和膨胀,透水性很差。这种土壤的改良,最好是淤灌排水结合种植绿肥牧草,也可施用炉渣、黑矾或石膏。目前虽未进行冲洗,但也要采取排水措...

内蒙大小黑河流域属干草原地带,三面都有山地和丘崗包围,高地岩石风化释放的盐类随径流汇聚而下,再以地势低平,排水不暢,地下水埋藏较浅(2—3米),地下水矿化度为0.5—5克/升,并多含有碳酸根。这些情况都是苏打盐土的形成因素。苏打的来源可能主要为次生黄土台地和平原所埋藏的湖相沉积物中含有苏打,其次为来自大青山地区岩石的风化。现代沼泽洼地和新干涸的洼地的边缘也积累有苏打,这可能是硫酸钠的生物化学还原作用的结果。苏打草甸盐土可演变为碱化土壤,如经利用可变为埋藏性苏打盐化草甸土。大小黑河流域中的苏打盐土多属氯化物苏打盐土。这种盐土的特性是:可溶盐较少,表层约1%左右,碳酸根含量大于0.5毫克当量,钠鉀离子占阳离子总量90%以上,pH大于10,土壤几乎不含石膏,交换性钠占全部交换量60—80%;有机质约0.3%左右,水溶性有机质占有机质总量4—5%;易溶性SiO_2含量每百克土中约0.7—0.8%;一般质地较粗,土壤自然含水率和毛管水含量都较低,土壤易于干燥,结持力大,见水易于分散和膨胀,透水性很差。这种土壤的改良,最好是淤灌排水结合种植绿肥牧草,也可施用炉渣、黑矾或石膏。目前虽未进行冲洗,但也要采取排水措施,控制地下水位,防止苏打在土体内之继续累积,黑河可用来排水,先疏浚其下游。

 
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