钾素循环的各个环节有很大的变化。
研究区土壤中钾素含量变化不明显。
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.
稻—麦轮作期紫色土农田生态系统钾素平衡状况怎样？
Whether was potassium balance kept in purple soil cornfield ecosystem under a rotation of rice and wheat?
特别使钾素含量增幅达12.5%，达到极显著的水平。
Especially make the plain content increase of potassium reach 12. 5%, reach the extremely remarkable level.
研究了水稻吸钾规律及其生育期内紫色土钾素动态变化。
The pattern of potassium uptake by the rice crop in its growing period and the dynamics of potassium in purple soil were studied.
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.
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.
坡地钾素平衡及管理研究于2000年开始在贵州南部开展。
A study on potassium balance and management on sloping land was conducted in south Guizhou province of southwest China in 2000.
因此需要深入研究钾素营养内在生理机制及钾素营养障碍机制。
It needs to study the intrinsic mechanism responsible for potassium accumulation of tobacco.
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.
钾素能增加穗粒数，提高粒重，提高茎秆充实度，增强抗倒伏能力。
Potassium fertillizer increased grain number per ear, improved grain weight, improved stem pole substantial degree, strengthened the ability of resisting lodging.
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.
随着农产品产量和品质的不断提高，作物对钾素的需要量也不断增加。
The requirement for K supply increases with the increasing of crop yield and quality.
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.
结果表明：绝大多数苇田呈碱性反应，钾素营养丰富，氮、磷养分普遍不足；
The results illustrate that chemistry reaction of the soil is weakly alkaline, the K nutrition is plentiful, whereas N and P are insufficient in most parts of the reed fields in Hubei province.
通过大田试验，研究了饼肥与化肥配施对烤烟硝酸盐、亚硝酸盐及钾素的影响。
The effects of proportional application of cake fertilizer and chemical fertilizer on leaf nitrate, nitrite and potassium of flue-cured tobacco were investigated in a field experiment.
通油1号开花后根系钾素吸收量和成熟期子粒钾素吸收总量明显高于四密25。
Compared with SM25, both K absorptive capacity by roots after flowering and total K absorptive capacity in grain at maturity duration of ty 1 were much higher.
这表明该模型对苹果花钾素含量的估测具有较好的准确度，可作为最佳估测模型。
This indicates that the model has a better estimation accuracy for the kalium content in apple flowers and can be used as the best estimation model.
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.
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.
通过不同水平钾素营养培养星星草幼苗，研究钾素营养对星星草幼苗抗碱性的影响。
Seedlings of Puccinellia tenuiflora were treated by different concentration solutions of patassium nutrients in order to study the effect of patassium nutrients on alkali resistance of seedlings of P.
红兴隆草甸土钾素含量较高，施钾对大豆和小麦有一定的增产效果，但增产幅度不大。
As the potassium content in meadow soil in Hongxinglong Farm is fairly high, the effect of potash application on the increase of crops yield was not very significant.
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.
然后，采用逐 步回归分析方法，筛选敏感波长与光谱参数，建立钾素含量估测模型；
Then, the stepwise regression analysis method is used to select the sensitive wavelengths and spectral parameters and establish kalium content estimation models.
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.
利用强筋冬小麦品种烟农15研究了钾素对小麦旗叶蛋白质含量和籽粒品质及有关酶活性的影响。
The effect of potassium on flag leaf protein content and kernel quality as well as enzyme activity in wheat was investigated using wheat cultivar Yannong 15 with strong gluten potential.
各器官的钾素积累量随施氮量的增加而增加的幅度较大，但随钾肥用量的增加而增加的幅度较小。
The amount of K increased observably with the increasing of N fertilizer application, but increased indistinctively with the increasing of K fertilizer in each organ.
各器官的钾素积累量随施氮量的增加而增加的幅度较大，但随钾肥用量的增加而增加的幅度较小。
The amount of K increased observably with the increasing of N fertilizer application, but increased indistinctively with the increasing of K fertilizer in each organ.
应用推荐