介绍河西农田施钾效应及土壤钾素消长变化情况。
The effect of potassium application in the farmland in Gansu corridor and the fluctuation of potassium in soil are discussed.
通过实验室和田间试验才能测定出土壤钾素水平是否适宜。
Laboratory or field tests would be needed to determine the adequacy of K.
施用足量有机肥可以维持并提高土壤钾素含量和供钾水平。
Also, the application of manure increased the levels of potassium in Lou soil significantly.
根据云南烟区土壤钾素含量及分布特点，提出了相应的施肥措施。
The suitable fertilization formula was recommended based on the characteristics of potassium content and distribution of soil in Yunnan tobacco growing areas.
采用连续流动交换法研究了供试土壤钾素吸附和解吸的动力学特征。
Kinetics of adsorption and desorption characteristics were studies using continuous flowing method.
但从提高作物产量和缓解土壤钾素下降来看，小麦秸秆还田是一个有效的补钾措施。
In order to increase crop yield and retard decrease of soil K, wheat straw to soil was an effective measure to complement potassium.
研究施钾和秸秆还田对华北地区不同种植制度下作物产量和耕层土壤钾素状况的影响。
Effect of application of K fertilizer and wheat straw to soil on crop yield and status of soil K in plough layer under different planting systems was studied.
钾素Q/I特性是表征土壤钾素状况的一个重要指标，它能同时度量土壤钾素的强度和容量。
Q/I Characteristics of potassium are important indices to indicate soil potassium status, and can measure both the intensity and quantity of soil K at the same time.
沉积物对土壤钾素状况的影响与其颗粒组成、有机质含量、CEC和土地利用方式等因素有关。
The sediment and soil potassium condition is related to some factors, such as granule size, organic matter content, CEC and land use means.
腐殖酸对土壤钾素释放和固定的影响是通过对含钾矿物的溶解和层间堵塞以及对钾素的吸附作用实现的。
The effect of humic acids on fixation and release of potassium in soil was accomplished by dissolving K-bearing minerals or blocking interlayers and adsorbing k.
各品种玉米对土壤和肥料中钾素的敏感程度不同，吸收钾的数量差异悬殊。
The sensitivity of different variety maize to potassium in the soil and fertilizer were not the same and the amounts of potassium absorbed by them was great difference.
研究区土壤中钾素含量变化不明显。
钾素资源管理不仅指钾肥的合理施用，也包含了土壤中钾素肥力的保持和有效利用。
Management of potassium resources refers to the rational application of potassic fertilizers and also includes the preservation of potassium fertility in the soil and its effective use.
结果表明，风沙土钾素含量较低，土壤速效钾含量及被土壤固定的钾量均随着施钾量的提高而增加。
The result shows that the content of slow-release potassium and available potassium is low. Theamount of available potassium and fixed potassium increase with increasing amount of applied potash.
氮磷化肥配施有机肥具有持续提高产量、培肥土壤的双重效果，是砂姜黑土培肥改良较理想的施肥方式，但同时要注意钾素的补充。
Nitrogen phosphorus chemical fertilizer combined organic improve yield, more ideal way of fertilizing. But should pay attention to the plain supplement of potassium at the same time.
灰棕紫泥和红棕紫泥有较强的供钾潜力，红棕紫泥尤其是红棕紫泥水稻土必须注意施用钾肥以补充和维持土壤的钾素水平。
Potassium fertilizer should be applied to red-brown-purple soil especially paddy soil to supplement and maintain the K level in soil.
通过自制钾矿胁迫堆肥和常规堆肥，在模拟土培试验条件下，对土壤中微生物总群数量、有效钾含量变化进行测定，进而研究该堆肥对土壤中钾素循环的影响。
Amounts of microbial consortia and soluble potassium were detected, and the impact on potassium circulation by the compost in soil was studied in the present investigation.
通过自制钾矿胁迫堆肥和常规堆肥，在模拟土培试验条件下，对土壤中微生物总群数量、有效钾含量变化进行测定，进而研究该堆肥对土壤中钾素循环的影响。
Amounts of microbial consortia and soluble potassium were detected, and the impact on potassium circulation by the compost in soil was studied in the present investigation.
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