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土壤速效p
相关语句
  soil available p
    While soil available P had a significant positive correlation with hyphae and vesicle percent colonization,and positive effect on total percent colonization.
    土壤速效P与菌丝和泡囊定殖率呈极显著正相关,与总定殖率呈显著正相关;
短句来源
  “土壤速效p”译为未确定词的双语例句
    The available P content of green house soil was 4.9 times as high as that in the cereal cropland, and it was observed to increase linearly in the first five years.
    大棚土壤速效P的含量是相邻农田的4.9倍。 在1~5年的大棚内,土壤速效P含量呈直线上升。
短句来源
    Soil fertility was significantly improved when Keza 1 soybeans were interplanted in the young loquat orchard. Rapidly available phosphorus in soil increased from trace to 18.27mg/kg, total phosphorus and rapidly available potassium increased by 260.0% and 183.6%, organic matter, total potassium, total nitrogen and rapidly available nitrogen increased by about 40%, respectively.
    幼龄枇杷园套种科杂1号,显著提高土壤肥力,土壤速效P由清耕对照的痕迹增至18.27 mg/kg,全P和速效K分别增加260.0%和183.6%,有机质、全N、全K和速效N的增幅在40%左右;
短句来源
    The results showed that nutrients in vegetable soil accumulated, compared to those in paddy soil. NO3--N and readily available P accumulated the most in the soil in plastic greenhouse.
    调查结果显示,与水稻田土壤相比,土壤养分均有不同程度的累积,尤以大棚土壤速效P、NO3--N的累积为甚;
短句来源
    Application of biogas fertilizer,specially when the solid and liquid biogas fertilizer applied combinely,has better benefit effect on improving soil organic content and alkali-hydrolyzable nitrogen than pig manure or chemical fertilizer,while combination of pig manure and chemical fertilizer was favorable to increase the content of available phosphorus and potassium in soil.
    施用沼渣、沼液在提高土壤有机质含量方面的效果分别优于施用猪粪、化肥,沼渣与沼液配合施用在提高土壤有机质及碱解N含量方面效果显著,猪粪与化肥配合施用有利于提高土壤速效P和速效K的含量。
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  soil available p
Surface soil available P under tree canopies was 34-50% higher than the corresponding soil away from canopies.
      
Phosphorus-based manure or compost application resulted in similar grain yields to those for N-based treatments but had significantly less soil available P level after 4 yr of application.
      
Although differences were not statistically significant, soil available P concentration tended to increase at early stages of liming for both plantations.
      
However, at the same levels of soil available P and K, field-grown tithonia consistently produced lower leaf P and K concentrations than that grown in hedges.
      
We quantified inputs from the atmosphere, dissolved and particulate-bound losses, throughfall and litterfall fluxes, standing crop litter and soil available P pools.
      
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Soil fertility was significantly improved when Keza 1 soybeans were interplanted in the young loquat orchard. Rapidly available phosphorus in soil increased from trace to 18.27mg/kg, total phosphorus and rapidly available potassium increased by 260.0% and 183.6%, organic matter, total potassium, total nitrogen and rapidly available nitrogen increased by about 40%, respectively. The results also showed that under-crop sowing improved the tree nutrition and promoted the tree growth. The contents of nitrogen, phosphorus,...

Soil fertility was significantly improved when Keza 1 soybeans were interplanted in the young loquat orchard. Rapidly available phosphorus in soil increased from trace to 18.27mg/kg, total phosphorus and rapidly available potassium increased by 260.0% and 183.6%, organic matter, total potassium, total nitrogen and rapidly available nitrogen increased by about 40%, respectively. The results also showed that under-crop sowing improved the tree nutrition and promoted the tree growth. The contents of nitrogen, phosphorus, potassium, calcium and magnesium in leaves increased by 9% and above, the crown diameters, shoot number and the percentage of head sprouting increased by 27.3%, 57.7% and 86.8%, respectively. The quality of fruit also improved after under-crop sowing.

幼龄枇杷园套种科杂1号,显著提高土壤肥力,土壤速效P由清耕对照的痕迹增至18.27 mg/kg,全P和速效K分别增加260.0%和183.6%,有机质、全N、全K和速效N的增幅在40%左右;研究还表明,套种提高了枇杷树体营养和促进丰产树冠的形成,叶片N、P、K、Ca、Mg含量均比对照区增加9%以上,冠幅和枝梢数分别增加27.3%和57.7%,枝梢抽穗率提高86.8%,同时,套种对改善果实品质也有一定作用。

In the present investigation, 156 top layer soil samples (0~20 cm) were taken in a regular grid of 50 m by 50 m at 50 hm2 area of vegetable plot located at the east part of Taihui road in Dapu town, Yixing city. Characteristics of spatial variability of soil nutrients were studied using traditional statistics and geo-statistics, The results showed: there were obviously semi-variance structure for spatial variability and distribution Pattern of soil total N, available P, available K. Their spatial variability...

In the present investigation, 156 top layer soil samples (0~20 cm) were taken in a regular grid of 50 m by 50 m at 50 hm2 area of vegetable plot located at the east part of Taihui road in Dapu town, Yixing city. Characteristics of spatial variability of soil nutrients were studied using traditional statistics and geo-statistics, The results showed: there were obviously semi-variance structure for spatial variability and distribution Pattern of soil total N, available P, available K. Their spatial variability exhibited a gradual change tendency, and spatial variation developed in larger scales. Their spatial variability exhibited a gradual change tendency, and spatial variation developed in larger scales. Soils were widely abundance in P and total N and available K deficient/enrichment were dependence on fields, Field nutrient distribution maps were generated using Kriging method and GIS technique, The results is useful in making regional soil nutrients management and building key control region .

采用传统统计和地统计学相结合的方法,以太湖典型地区宜兴市大浦镇湖滨公路以东50hm2蔬菜地为研究对象,网格法(50m×50m)采集表层(0~20cm)土壤156个,研究了土壤主要肥力参数(N、P、K)空间变异特征和分布规律。结果表明:全P、全N、NH4+-N、速效P和速效K有明显的空间变异结构,且在一定范围内存在空间相关性,其含量具有一定的渐变分布规律。研究区域土壤速效P普遍盈余,土壤N、K丰缺并存。Kriging插值法绘制了土壤养分空间分布图,研究结果为最终实施氮磷养分的分区管理和养分重点控制区的确定提供依据。

Nutrients in vegetable soils in south suburb of Nanjing were investigated. The results showed that nutrients in vegetable soil accumulated, compared to those in paddy soil. NO3--N and readily available P accumulated the most in the soil in plastic greenhouse. But organic matter, total nitrogen and total potassium decreased below those in 1980s. Total phosphorus increased over those in 1980s.

本文以南京市南郊蔬菜地土壤为研究对象,全面调查了蔬菜地土壤有机质、全N、全P、全K、速效P、NO3--N等养分指标的累积状况。调查结果显示,与水稻田土壤相比,土壤养分均有不同程度的累积,尤以大棚土壤速效P、NO3--N的累积为甚;但与第二次土壤普查资料相比,土壤有机质、全K均有不同程度的下降,全P略有上升。平衡的施肥制度和合理的耕作管理体系是保持土壤养分平衡的关键。

 
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