您要查找的是不是：
- In a loamy soil with medium fertility, a field experiment was conducted to study the effectsof applying organic, N and P fertilizers at different depths, using wheat as indicator. 在中等肥力的红油土上,以小麦为指示作物,对有机肥、氮肥、磷肥进行了不同施用深度的肥效试验。
- Based on applying N and P fertilizers,the treatments with potassium fertilizer could increase the yield of mulberry leaf and the absorption of K in mulberry,and the effects of K2 treatments with 148.5kg K2O/hm2 was the highest. 此外;施钾还提高桑树对钾素的吸收利用;以K2处理(148.;5kg K2O/hm2)的施钾效果最好;
- Therefore, fertilizing means were improved to adjust the ratio of N and P fertilizers, and to supply K and microelement fertilizers in order to meet all nutrient element demand of sugarbeet growth. 针对目前土壤养分的状况，通过大量的田间试验、示范，提出合理的施肥建议，调整氮、磷的比例，改进施肥方法，有针对性地补钾、补微量元素肥料，以满足甜菜作物对各种营养元素的平衡吸收。
- Furthermore, N and P fertilizer application rate could be decreased accordingly to optimize fertilizer management when contributions from eutrophied irrigation water were taken into consideration. 在利用当地富营养化河水进行稻田土壤灌溉时可适量减少肥料施用量、优化氮磷肥料管理。
- N and P fertilization 氮磷配施
- N and P fertilizers 氮磷化肥
- However fertilizer regimes for oil palm in Thailand have tended to emphasize N and P more than K. 然而，泰国现在油棕榈的施肥状况，比起钾来，更偏向重视氮和磷。
- The volumes of N and P in EPQ were obviously related with SCL-90 total score multiple factors. 强迫症患者EPQ中的N量表和P量表与SCL - 90总分及多项因子分明显相关。
- Several main paradoxical factors in the process of N and P removal were introduced. 介绍了脱氮除磷过程中互相矛盾的几个主要因素;
- Many studies on effect of N and P to algae of in Dianchi lake influenced by N and P hasbeen reported. 有关氮、磷对滇池藻类生长的影响研究已有大量的报道。
- These values were compared with the N and P concentration in sediments and macrophyte biomass in order to assess nutrient availability, fate and storage capacity. 这些数值被用来与沉淀物和大型动植物中的氮磷浓度相比较，由此得出营养物质的有效性，去向和储存量。
- The reduction speed is increasing along with the concentration of N and P in water, whereas the removal rate of N and P is descending. 氮磷浓度的降低速率随水体中氮磷浓度的升高而升高，而对氮磷的去除率随水体中氮磷浓度的升高而降低。
- Acorus calamus was more efficient for accumulating N and P, while Iris tectorum had more N and P per plant as a result of its much higher biomass. 菖蒲各器官氮、磷含量均高于鸢尾,但是单株鸢尾对氮、磷的积累量比菖蒲大。
- In addition, applying nitrification inhibitors could increase vitamin C and soluble sugar contents in pakchoi, and promote N and P uptakes by pakchoi. 另外，3种硝化抑制剂还能显著提高小白菜的维生素C和可溶性糖含量，增强对N，P养分的吸收。
- Besides, Vallisneria spiralis L. and Canna had no significant difference in removal efficiencies of N and P in both lab experiment and field test. 在实验与现场条件，美人蕉与苦草对总氮和总磷的去除率之间没有显著差异。
- Concentrations of Pb, Zn, Cu, Cr, Ni, Mn, S, N and P in the soil were determined with the XRF method and values of pH and TOC were measured. 利用X射线荧光光谱法(XRF)对某城市工业区周围的土壤环境进行了研究。
- The N and P contents were as follow: Oasis > transitional zone > hungriness, and the K content was as follow: Hungriness > transitional zone > oasis. N、P含量：绿洲＞过渡带＞荒漠；而由于盐渍化的影响K含量：荒漠＞过渡带＞绿洲。
- Available N and P have inverse dynamics in that while available N decreases, available P increases, except for Phragmites communis Trin. 根际土有效态养分的变化则与全态相反，6种植物的根际土有效氮含量均显著低于非根际土，除芦苇外，根际土有效磷含量均高于非根际土。
- The results were found as following: wetland with plants was superior to unplanted one in removing ability of both N and P. 结果表明:有植物床的脱氮除磷效果好于无植物床,复合床脱氮除磷效果最好,但芦苇床、姜花床、复合床之间的差异不显著;
- The matter reason of eutropher in water is because algae grow raplily in propriety temperature and illumination when nutriment of N and P is imported from the environment. 水体富营养化的主要原因是由于外界输入过量的氮磷营养物质,在适当的温度、光照下,藻类过量生长繁殖造成的。
