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土壤速效养分     
相关语句
  soil available nutrient
     Soil available nutrient content and its spatial Variability in two types of farm management systems were analyzed. The result showed that soil available K level was low and close to critical level in entire Shanghai area.
     通过对上海两种经营体制的土壤速效养分含量及变异性分析,结果表明:整个上海地区土壤速效钾均处于较低于的水平,都在临界值附近,而土壤有效锌在分散经营条件下处于中低水平,而在规模经营条件下有富集的趋势。
短句来源
     Soil EC, total nitrogen, available nitrogen, available phosphorus and organic matters were significantly negative related to the soil pH. Soil total nitrogen was positive significantly related to soil available nutrient. Furthermore, soil organic matters could promote the increasing of the soil available nutrient, and the equilibrium of soil nutrient is highly important.
     土壤中pH值与土壤EC值、土壤全氮、速效氮、速效磷、有机质含量呈显著负相关,土壤全氮含量与土壤速效养分含量有极显著正相关关系,而且土壤有机质含量与土壤速效养分之间也有相互促进的作用,所以土壤养分的平衡效果非常重要,有机肥处理后土壤养分全面,肥力较高。
短句来源
     Study of Soil Available Nutrient Spatial Variability
     土壤速效养分空间变异研究
短句来源
     The seasonablechange law of soil available nutrient is lower peak value in summer.
     土壤速效养分的季节变化规律为“夏低型”,夏季沙棘人工林分的年生长高峰造成了此时土壤速效养分较低的现象,而土壤酶的酶促作用又使得沙棘年生长结束时的土壤速效养分基本上恢复到年初水平,沙棘林分的自肥作用很好。
短句来源
     In alpine meadow soil the enzymahc activities were closely related to organic matter content but little related to soil available nutrient content and grass output. So the content of organic matter and the activities of soil enzymes could not be taken as the indexes of soil fertility.
     在高寒山区,土壤酶活性与土壤有机质含量密切相关,与土壤速效养分含量和牧草产量无关,因而土壤有机质含量,土壤酶活性不能作为土壤肥力的标志。
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  soil available nutrients
     Seasonal Changes of Soil Available Nutrients and Enzyme Activity of Cinamomum cassia Plantation
     肉桂人工林土壤速效养分与酶活性的季节变化
短句来源
     Study on variability of soil available nutrients in Shanxi province
     土壤速效养分空间变异研究
短句来源
     The green manure treatment increased the contents of soil available nutrients and soil organic matter.
     绿肥处理能增加土壤速效养分和有机质含量;
短句来源
     The semi-variation structure for most soil available nutrients was obvious and the rate of structural variation accounted for more than 50% of the total variation.
     大多数土壤速效养分的半方差结构明显,结构性方差占总方差的比例均在50%以上。
短句来源
     In the aspect of soil fertility development,there are no significant differences in soil physical characters be-tween chemical fertilizer plots and no fertilizer plots- During the 12 years,the soil total nitro-gen and organic matter decrease annually by approximately 1. 32 % and 1. 33%,respectively, and the soil available nutrients in the no phosphorus fertilizer or no potassium fertilizer plots decrease remarkably.
     在土壤肥力方面,12年施用化肥区和无肥区比,土壤物理性质无显著差异,土壤全氮和有机质每年分别下降1.25%和1.33%,土壤速效养分无磷、钾区都大幅度下降。
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  “土壤速效养分”译为未确定词的双语例句
     3. When the scope of soil moisture was 9~20% , Biological-bacteria fertilizer Bring into play a certain promoting role on Soil available N,P and K were increased by 15.6%~96.9%, 32.1%~82.6 % and 1.2%~12.9% .
     3.土壤含水量为9%~20%范围内,生物菌肥对土壤速效养分皆有一定的促进作用。 使土壤碱解氮提高15.6%~96.9%,速效磷和速效钾分别提高32.1%~82.6 %和1.2%~12.9%。
短句来源
     The results showed that the organic matters improved available nutrients in soil, decreased pH, ESP,Na +/K +,Na +/Ca 2+ and Na +/Mg 2+ , strengthened aggregate ability of soil increased the capacity of holding and supplying nutrient, enhanced the yield of rice.
     结果表明 :草炭和风化煤增加了土壤速效养分 ,降低了土壤的 pH值、ESP、Na+/K+、Na+/Ca2 +和Na+/Mg2 +,增强了土壤的团聚性 ,改善了盐碱土的养分供应状况 ,增加了作物的产量。
短句来源
     Its organic matter content was 32.0g.
     结果表明:秸秆有机肥处理土壤速效养分含量较高,土壤有机质含量在3个处理中表现最高,为32.0g.
短句来源
     Its change range was higher apparently than total nutrients
     土壤速效养分受海拔高度影响较大,其变化幅度明显高于全量养分。
短句来源
     Theresults show, the yearly hippophase growth process law was relationship with seasonal change ofsoil enzyme such as urease and phosphatase.
     研究结果表明:沙棘的年生长过程与脲酶、磷酸酶等转化土壤速效养分的酶活性季节变化规律相同,都为“夏高型”;
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  soil available nutrients
Soil available nutrients (nitrate, ammonium, phosphorus, potassium, calcium and magnesium), total nitrogen, organic carbon and pH were measured.
      
Spatio-temporal patterns of soil available nutrients following experimental disturbance in a pine forest
      
This study examined the effects of tree harvesting and girdling on overall variability, geostatistical patterns, and resource congruence of soil available nutrients in a mature Pinus elliottii Engelm.
      
Herbage, essential oil yield, nutrient uptake of Japanese mint and soil available nutrients were significantly enhanced due to application of amended compost as compared to nonamended compost, farm yard manure and inorganic fertilizer.
      
None of the reductions in soil available nutrients observed were of sufficient magnitude to cause nutrient deficiencies over the approximate 1-year duration of these studies.
      
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  其他


Following rotation of Iespedeza bicolor Turez and fertilizer aqpliation in the formerly fallow ginseng field, acfivity of microflora in the rhizosphere of Ginseng osn be incresed, structure of soil ameliorated and fertility ofsoil increased, All this has resulted creation favorable condtions for the growth and develepment of the Ginseng. The amount of icroflora in the rhizosphere of Ginseng, rapidly available nutrient of soil, respiration of soil, ammonifications and nitrifications increased the outqut of Ginseon....

Following rotation of Iespedeza bicolor Turez and fertilizer aqpliation in the formerly fallow ginseng field, acfivity of microflora in the rhizosphere of Ginseng osn be incresed, structure of soil ameliorated and fertility ofsoil increased, All this has resulted creation favorable condtions for the growth and develepment of the Ginseng. The amount of icroflora in the rhizosphere of Ginseng, rapidly available nutrient of soil, respiration of soil, ammonifications and nitrifications increased the outqut of Ginseon. However, unfitting fertiltzer applications in the formerly fallow Ginseng field, will give an impetus to growth and repreduction of pathogenic microbes, and can cause the diseases of Ginseng to aggravas, that the surival rate and output declines.

老参地轮作胡枝子和肥施,可以增加人参微生物的活跃性,改善土壤结构,增加土壤肥力,为人参的生长发育创造良好的条件。人参微生物区系的总数量的增加,增强土壤速效养分、土壤呼吸强度作用、硝化作用和氨化作用,这与人参的产量有关。但是,老参地施肥不恰当,会促进致病微生物的生长、繁殖,也会导致人参病害加剧,存活率降低和产量下降。

The fixed-spot test progressed in the suburbs of Tianjin for four years.The results indicate that the effects on increasing yield of N P K fertilizers in the main types of soil and main crops are significant N and P fertilizers can be effectively applied in 80-90% cultivated area of the all suburbs while K fertilizer in 15% area. The effects on increasing yield of N P K have a significant negative correlation to the quantity of the quick effective nutrients in the soil,thus we can decide the critical value of...

The fixed-spot test progressed in the suburbs of Tianjin for four years.The results indicate that the effects on increasing yield of N P K fertilizers in the main types of soil and main crops are significant N and P fertilizers can be effectively applied in 80-90% cultivated area of the all suburbs while K fertilizer in 15% area. The effects on increasing yield of N P K have a significant negative correlation to the quantity of the quick effective nutrients in the soil,thus we can decide the critical value of the quick effective nutrients in the soil where chemical fertilizer is effectively applied. According to the result of poly-regression analysis and given attention to both yield and economical gains. In order to popularize, we may choose the best applying fertilizer plans for different yield level of main crops.

通过多年在全市郊县布点试验结果,明确了NPK化肥在天津市主要类型土壤和主要粮食作物上的增产效果,NP化肥效果显著,且效果近似,其有效施用面积可占全市耕地80—90%,K肥只在15%耕地上有效果.NPK的增产效果与土壤中速效养分有显著的负相关性,从而确定出施用化肥有效土壤的速效养分临界值.并根据多元回归分析的计算结果,兼顾产量和经济效益两方面,选择出主要粮食作物在不同产量水平下的最佳施肥方案,供推广应用.

1. The ability of soil organo-mineral complexes was raised by the accumulation of soil organic matter under long-term returning of straws to the soils. The higher C/N ratio of straws (wheat, rape, and barley etc.) is, the higher additional complex degree of soils would be.2. Under upland condition, the returning of straws to the soils mainly increased C, N, P and S contents of silt complexes in soil; whereas, under water-logged condition, the returning of straws to the soils mainly increased C, N, P and S contents...

1. The ability of soil organo-mineral complexes was raised by the accumulation of soil organic matter under long-term returning of straws to the soils. The higher C/N ratio of straws (wheat, rape, and barley etc.) is, the higher additional complex degree of soils would be.2. Under upland condition, the returning of straws to the soils mainly increased C, N, P and S contents of silt complexes in soil; whereas, under water-logged condition, the returning of straws to the soils mainly increased C, N, P and S contents of clay complexes in soil.3. Under long-term returning of straws to the soils, particularly when the straws with higher C/N ratio were used, there could be more C contents of loosely combined form and fixed humus, but when green manures with lower C/N ratio were returned to the soil, the oxidization of loosely combined form and stably combined form of humus would be enhanced.4. Long-term returning of straws to the soils could increase the C contents of FA-A and humin and cause the aromatic nature of HA-A and HA-B to be in a weaker state.

长期秸杆还田能大幅度提高新形成腐殖质与土壤无机部分的复合,增强土壤腐殖质活性。C/N值太的秸木材杆有利于提高改土效果。C/N比值小的绿肥增加松结态腐殖质碳量相对较多,易矿化,有利于提供土壤速效养分

 
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