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改良盐土
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  “改良盐土”译为未确定词的双语例句
     STUDIES ON THE PLANTATION OF SESBANIA AEGYPTICA AND ITS EFFECT ON THE AMELIORATION OF SALINE SOILS OF THE COASTAL AREAS OF PAN-CHIN,LIAONING PROVINCE
     辽宁省盘锦沿海地区田菁的栽培及其改良盐土的效果
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     THE RECLAMATION OF SALINE SOIL BY RICE CULTIVATION IN SOUTHERN XINJIANG
     南疆种稻改良盐土的问题
短句来源
     The effect analysis of underground pipe drains for reclamation of saline soil has been made and the mechanism of underground pipe drains for reclamation of saline soil has been described and a scientific basis for reclamation of saline soil in the similar regions are provided.
     对暗管排水改良盐土的效果进行了分析,说明了暗管排水改良盐土的机理,为类似地区盐土改良提供了科学依据。
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  相似匹配句对
     THE RECLAMATION OF SALINE SOIL BY RICE CULTIVATION IN SOUTHERN XINJIANG
     南疆种稻改良盐土的问题
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     STUDY ON RECLAMATION OF COASTAL SALINE SOIL WITH MIXED CULTURE OF FISH AND BARLEY
     麦鱼套作改良滨海盐土的研究
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     The improvement A.
     改良 A .
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     In breeding of polyploid of Brassica oleracea L.var.
     用改良L.
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     (4) Salina forestry programming planning.
     (4)盐土林业规划。
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本文总结我站几年来种植绿肥对改良盐土的效果,同时也对盐土上栽培、利用绿肥的几个问题,作初步讨论。在盐土棉田中种植与翻压绿肥,既可建立地面覆盖,抑制地表返盐,又可改善土壤结构,促进土壤脱盐,并可增加土壤有机质,提高土壤肥力。因此盐土棉田套种绿肥,随着土壤盐分的降低和肥力的提高,棉花产量可逐年增加。苏北几种绿肥苗期耐盐力大小的次序是:田菁>紫花苜蓿>光叶苕子=金花菜。为了达到全苗、壮苗,可根据土壤含盐量的多少,选种耐盐性不同的绿肥品种。盐渍土上绿肥保苗,除选用耐盐品种作先锋外,可采用综合措施,如趁雨播种、冲沟播种、深沟浅盖和盖草等措施。豆科与禾本科多种绿肥混播,不仅可增加鲜草产量,而且可增加后作产量。磷肥对绿肥有显著增产作用。翻耕绿肥要因地制宜。在中上等绿肥田,土壤盐分较轻,翻埋绿肥,不致引起土壤返盐,有利增产;在中下等绿肥田,土壤盐分较重,不宜翻埋绿肥,宜用刨盖力式,以免返盐。在输作中配置绿肥也要因地制宜。轻盐土,以蚕豆和豆麦、和草麦间作为宜;中盐土,可由绿肥棉花输作,过渡到棉、粮、绿肥输作;重盐土,可种双季绿肥。

The experiment area is located on the Da--Yu--Zhang irrigation district of the Yellow River right bank and the Bohai off-shore. The dynamic type of phreatic water is irrigation or rainfall-evaporation in the semi-wet monsoon cli- mate. The arrangement of underground pipe drains are the narrow-deep, the narrow-shallow and the wide-deep. The con- trol standard and suitable condition of water and salt in the reclamation and utilization stage for prevention of salinization of soil in the fine sandy loam soil region...

The experiment area is located on the Da--Yu--Zhang irrigation district of the Yellow River right bank and the Bohai off-shore. The dynamic type of phreatic water is irrigation or rainfall-evaporation in the semi-wet monsoon cli- mate. The arrangement of underground pipe drains are the narrow-deep, the narrow-shallow and the wide-deep. The con- trol standard and suitable condition of water and salt in the reclamation and utilization stage for prevention of salinization of soil in the fine sandy loam soil region have been reached in this paper based on the experiments and analysis. The effect analysis of underground pipe drains for reclamation of saline soil has been made and the mechanism of underground pipe drains for reclamation of saline soil has been described and a scientific basis for reclamation of saline soil in the similar regions are provided.

试区位于渤海之滨、黄河右岸的山东打渔张灌区,其潜水动态类型属灌溉、降雨——蒸发型,为半湿润季风性气候,暗管排水的工程布局为窄深式、窄浅式、宽深式。由试验分析得出了粉砂壤土地区防治盐碱化,改良后利用阶段的水盐控制标准,以及具体的适宜条件。对暗管排水改良盐土的效果进行了分析,说明了暗管排水改良盐土的机理,为类似地区盐土改良提供了科学依据。

Amelioration experiments of marine medium-saline soil by mixed cultivation of sesbania growing in waterlogged soils with fish culture (MCSWFC) was carried out in soils improved with single fish culture (SFC) previously, with cultivating sesbania in upland as a control. Results obtained were as follows: 1. Sesbania plants grew much better in waterlogged soils with fish culture than in upland. The fresh weight of liberal roots, root nodules and seeds yield of sesbania growing in warerlogged soils was 10 times,...

Amelioration experiments of marine medium-saline soil by mixed cultivation of sesbania growing in waterlogged soils with fish culture (MCSWFC) was carried out in soils improved with single fish culture (SFC) previously, with cultivating sesbania in upland as a control. Results obtained were as follows: 1. Sesbania plants grew much better in waterlogged soils with fish culture than in upland. The fresh weight of liberal roots, root nodules and seeds yield of sesbania growing in warerlogged soils was 10 times, 15 times and 1.5 times of that in upland respectively. 2. Efficiency of salt leaching in soil depth of 0~20 cm in the three treatments was as following order:MCSWFC > cultivating sesbania in upland (CSD > SFC, while it in soil depth of 0~100 cm was MCSWFC > SFC > CSU and there were same tendencies for SAR and Na+ /Ca2+ ratio. 3. Total soil nitrogen and alkali-hydrolyzable nitrogen in soil depth of 0~10 cm in MCSWFC was almost the sum of those in the tratments of CSU and SFC and it was also true for soil organic carbon. And the increase rates of soil available phosphorus and slowly available phosphorus were MCSWFC > CSU > SFC.

蓄淡养鱼改良滨海强度盐渍化土壤[1]和种植田菁改良盐土已被广泛报道。为把有效的改良途径组装为一体,产生生态叠加效应,从1991年开始,在江苏滨海中度盐渍化土壤进行田菁水植养鱼改土试验研究。结果表明:1.在中度盐渍化土壤上田菁水植养鱼复合处理其盛花期水植田菁很鲜重是旱作的10倍,根瘤鲜重是旱作田菁的15倍以上;田菁籽产量是旱境单作田菁的1.5倍以上。2.田菁水植养鱼复合处理土壤脱盐效果明显优于蓄淡养鱼,而后者的脱盐效果又明显地高于田菁旱境单作,0~20cm脱盐效果为:田菁水植养鱼处理>田菁旱作处理>蓄淡养鱼处理;而0~100cm土层表现为:田菁水植养鱼处理>围田蓄淡处理>田菁旱作处理,反映脱盐趋势的SAR、Na+/Ca2+亦呈上述同样的表现。3.土壤养分不同处理间变化亦十分明显:田菁水植养鱼复合处理0~10cm土层全氮及碱解氮含量几乎为田菁旱境单作与营淡养鱼的含量之和,有机碳含量亦呈同样趋势;土壤速效磷、缓效磷的增幅均为田菁水植养鱼处理>田菁旱作处理>蓄淡养鱼处理。

 
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