In order to investigate the effect of low temperature soil on magnesium anode, the electrochemical performance of four magnesium alloy anodes in simulated Qinghai-Tibetan plateau soil at low temperatureof -4 ℃ and 4 ℃ was studied by polarization curves, electrochemical impedance and current efficiency tests.
为评价低温土壤对镁合金阳极电化学性能的影响,通过极化曲线、交流阻抗和电流效率实验方法,研究了4种镁合金阳极在-4℃和4℃的模拟低温青藏高原土壤中的电化学性能。
Effects of foliar application with Na\-2SeO\-3 and Se bio fertilizer on the composition and Se content in soybean grains were studied in a low Se soil derived from sandy alluvium in central Jiangsu,China in 2000.
研究了叶面喷施Na2 SeO3 和自制生物硒肥对低硒土壤中大豆籽粒蛋白组分及其硒含量分布的影响。
Phosphorous nutritional characteristics of rice in P-deficient soils with different pH values
不同pH低磷土壤上水稻磷营养特性研究
The Mixed Inheritance Analysis of Phosphorus Absorption and Utilization Efficiency in Maize under Deficient Phosphorus
低磷土壤下玉米根系质量的混合遗传分析
The Mixed Inheritance Analysis of Phosphorus Absorption and Utilization Efficiency in Maize
低磷土壤条件下玉米磷吸收和利用效率的混合遗传分析
Effects of phosphorus application on chemical components and aroma substances contents of flue-cured tobacco in low phosphorus soil
施磷对低磷土壤烤烟化学成分和香气物质含量的影响
The Mixed Inheritance Analysis of Root/shoot Ratio and Plant Height in Seedling of Maize Under Deficient Phosphorus
低磷土壤条件下玉米苗期根冠比和株高的混合遗传分析
Effect of co-inoculation with arbuscular mycorrhizal fungi and four different phosphate-solubilizing bacteria on nutrients uptake of red clover in a low phosphorus soil
同时接种解磷细菌与丛枝菌根真菌对低磷土壤红三叶草养分利用的影响
Effects of applying inorganic P and wheat straw on the microbial biomass P and microbial P concentration in a calcareous soil with low concentration available P
低磷石灰性土壤施磷和小麦秸秆后土壤微生物量磷的变化
As regards fertility status, almost all soils are deficient in N and about 90% are low to medium in P.
至于肥力状况，几乎所有土壤缺氮，约90%土壤低磷或中磷。
The Research of Adaptability in Soils under Different Acidity and Second Screening of Mutants in Rice with Low Phosphorus Tolerance;
耐低磷水稻基因型土壤酸度适应性和耐低磷突变体复筛研究
Effects of low-molecular-weight organic acids on soil phosphorus release
低分子量有机酸对土壤磷活化影响的研究
Two other low-input ways to improve the soil involve using manure or nitrogen and phosphorus as fertilizer.
还有两种低成本的方法可以改善土壤，包括施用粪肥或者氮肥、磷肥。
Phosphorus is one of the essential mineral elements to plant growth, however, there is fairly less content of soluble phosphorus in soil.
磷是植物生长必需的矿质元素之一,而土壤中可溶性磷的含量比较低。
Phosphate Solubilization of Two Isolates in Calcareous Soil and Acid Soil;
两株溶磷菌在两种土壤中的溶磷作用
The Effect of Phosphate Fertilizer and Manure on Phosphorus and Phosphorus Buffering Capacity of Soils;
磷肥、有机肥对土壤磷库及土壤磷缓冲能力的影响研究
The Effects of Phosphorus Application on Rice Yield Increasing Efficiency of Phosphorus and Soil Phosphorus Status in Different Type of Paddy soil of Phosphorus Deficiency
缺磷型稻田土壤施磷增产效应及土壤磷素肥力状况的研究
Change Law of the Phosphorus under Long-term Fertilization in Cinnamon Soil
长期施肥褐土土壤磷素变化规律研究
They are moderately well drained with a fluctuating water table and contain low amounts of organic matter, phosphorus and potassium and.
受地下水位波动影响，土壤排水程度中等，有机质、磷和钾含量低（表2、3）。
Effects of Several Low-Molecular-Weight Organic Acids and Phosphate on the Adsorption and Activity of BSA and Acid Phosphatase on Soil Colloids and Minerals;
几种低分子量有机酸、磷酸对BSA和酶在土壤胶体、矿物表面的吸附及活性影响