速效养分
- 网络available nutrient
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速效养分变化显著,pH值变化不明显;细菌和放线菌的数量显著降低,真菌的数量显著增加。
The available nutrient varied significantly , but the pH had no significant change . The amount of bacterium and ray fungi reduced obviously , and the amount of fungus increased obviously . 3 .
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再生水灌溉对草坪土壤速效养分及盐碱化的效应
Effects of Irrigation with Reclaimed Water on Available Nutrient and Salinize - alkalization
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蚯蚓-菌根相互作用对Cd污染土壤中速效养分及植物生长的影响
Effect of Earthworm-mycorrhiza Interaction on Available Nutrients and Ryegrass Growth in Cd Contaminated Soil
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覆盖后明显提高了土壤有机质及土壤中N、P、K养分含量,尤其是速效养分的含量。
Soil organic matter , N , P and K contents , especially available nutrient , obviously increased after mulching .
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通过增施有机肥等措施建立的酸化治理模式提高了土壤pH值和部分速效养分含量。
The organic fertilizer model based on organic fertilizer application improved soil pH and part of available nutrients .
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施用除草剂使土壤有机质含量和土壤pH降低,但是增加了土壤速效养分含量。
Herbicide application decreased soil organic matter content and pH value , but increased the available N , P , K.
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保肥力好且提高土壤速效养分N、P、K的利用率;
It can also raise soil capacity of fertility conservation well and use efficiency of soil available nutrients N , P and K ;
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基于GIS的鄂州市地力调查与质量评价及乡镇农田速效养分评价与应用
Assessment of Soil Quality and Environment for E-Zhou City , Effective Nutrient Evaluation and Application in Township Cropland Based on GIS
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陕南茶园土壤有机质和pH值空间变异及其与速效养分的相关性
Spatial variability of soil organic matter and pH and the correlation to available nutrients in the tea garden of southern Shaanxi
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~(15)N示踪法研究复混生物肥对水稻肥效及其对茬后土壤速效养分的影响
Effect of compound bio - | fertilizer on fertilizer efficiency of rice and active nutrients of soil after harvesting by ~ ( 15 ) n tracing
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水分变化平稳,保水性能加强:N、P、K速效养分含量有所增加;
It can make water change steadily and strength the power of keeping water ; It can also increase a little more quick result content of N , P and K.
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此外,禁牧明显提高了土壤有机质数量和离子交换能力,降低土壤pH值,促进矿质元素分解转化,增加速效养分含量。
In addition , forbidden grazing significantly improved the quantity of soil OM and CEC content , lower soil pH , promoted mineral elements into decomposition , increase available nutrient content .
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土壤养分供应状况是作物产量潜力发挥最为重要的因素之一,作物籽粒产量的空间变异与土壤OM和速效养分的空间变异之间有显著的或一定的相关性。
Spatial variability of crop grain yields was positively correlated with contents of soil OM and available nutrients .
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不同培肥方法对水田改旱后土壤盐分、pH、土壤速效养分及有机质的影响作用不同,石膏处理能明显降低土壤pH值;
The effects of different fertilizing manners on contents of total salt , soil pH , contents of soil available nutrients and organic matters were different . The gypsum treatment decreased soil pH significantly .
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垦殖利用后,其化学肥力随着耕垦熟化过程不断提高,表现为土壤中各种速效养分及交换性Ca、Mg含量均增加,而交换性Al含量降低。
Soil chemical fertility in cultivated-land and garden systems increased with land reclamation and soil maturation process , the content of soil nutrient and exchangeable Ca and Mg raised , but exchangeable Al dropped .
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结果表明:各种培肥措施均能明显提高土壤全量养分和速效养分含量,而且土壤阳离子代换量及pH值也有所降低。
The result shows , that all the measures of fostering fertility can increase the whole nutrients and the quick acting nutrients obviously , and the exchange capacity of positive ion and pH of soil decrease .
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为探讨提高土壤中秸秆发酵效率的新途径,本试验采用盆栽方法研究了秸秆配施外源蛋白酶对土壤速效养分、有机质、pH值以及后季作物生长的影响。
In order to find the new way to promote the fermentation efficiency of crop straws , the influences of outer protease on soil fertility and the effects on growth of wheat were investigated by pot culture experiment .
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黑色地膜覆盖可在早期提高土壤0~5cm层的日平均地温3℃左右,使土壤水分变化平稳、保水性好,提高速效养分N、P、K的利用率;
Black film mulching could raise the average daily soil temperature in plough layers of 0 ~ 5 cm by 3 ℃ in early stage , which could make water change steadily , raise soil capacity of water conservation and using efficiency of soil available N , P and K.
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在水稻不同生育期之间稻田土壤总氮含量存在显著差异(P0.01)总之,大气CO2浓度升高提高了稻田土壤矿质养分、有机质的含量,而速效养分在水稻不同生育期其影响不同。
The concentration of TN in Paddy field soil had significant difference between different rice growing stages ( P < 0.01 ) . In conclusion , the elevated atmospheric CO2 significantly increased the concentration of mineral nutrients 、 TOC and TN in the Paddy field soil .
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对于L1层土壤速效养分,速效氮、磷在不同刈割制度之间并无显著差异;对于L2层无论是不同刈割制度还是刈割后均无显著差异。
For the L1 layer of soil available nutrients , available nitrogen and phosphorus in different mowing regime there was no significant difference between ; the L2 layer is different , whether mowing or cutting regime there was no significant difference after . 5 .
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秸秆覆盖可提高0~60cm土层有机质和速效养分含量,其中同一覆盖时期,中覆盖有机质含量最高。
Straw mulch can improve organic matter and available nutrient content of 0 ~ 60cm soil , in the same coverage period , the highest content of organic matter in the middle coverage .
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与1999年和2000年相比,规律相似。每公顷施EM堆肥15t以后,土壤速效养分含量比其它处理高,而且在冬小麦-夏玉米生长的关键时期能提供较为充分的有效养分。
And it is the same with 1999 and 2000 . The soil available nutrients are higher than that of the others 1 . Furthermore , it can supply with enough available nutrients during the important growth stages of the winter wheat and the summer maize .
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当生育期雨量较小时,农田土壤速效养分增加的土层主要为较上层(0~40cm)土壤,而当雨量进一步加大时,还可使更深层土壤速效养分含量增加。
When the rainfall was lower , the layer of soil available nutrient in farmland mainly focused on topsoil ( 0-40 cm ) . With the rainfall increase , the soil available nutrient contents in deep soil layer also enhanced . 5 .
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植稻期水稻土速效养分动态的数学模式
The Mathematical Model of Readily Available Nutrient Dynamic in Paddy Soils
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县域农田土壤速效养分肥力综合评价
Integrated Assessment of Soil Fertility in Available Nutrients in County Region
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桉树与豆科植物混交种植对土壤速效养分的影响
Effects of mixed planting legume and Eucalyptus on soil available nutrients
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大豆覆膜增加了土壤水分与速效养分含量。
It increased plough layer soil water and available nutrients content .
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关中旱地小麦生育期土壤速效养分时空变异特征研究
The spatio-temporal variability of soil available nutrients in the Guanzhong plain
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日光温室土壤速效养分的累积和淋移特征研究
Characteristics of Available Nutrients Accumulation and Eluviation in Greenhouse Soil
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土壤速效养分空间变异研究
Study on variability of soil available nutrients in Shanxi province