Reducing N and P rates also decreased N and P accumulation and nitrate content in the soil and decreased the risk of N and P running off.
减少氮磷化肥用量可以大幅度降低氮磷在土壤中的累积和硝酸盐的含量，减少氮磷的流失风险。
The vegetative storage protein accumulation in fall may be directly related to the photoperiod, accommodation of n, temperature and water.
秋季贮藏蛋白质的积累可能与光周期、温度、水分和氮素的供应量直接相关。
The accumulation and degradation of protein can be affected by the multi-action of nitrate absorbing and the enzyme which related with N metabolism directly.
硝酸盐的吸收和氮素代谢相关酶的共同作用可以调控贮藏蛋白质的积累与降解。
P fertilization increased N, P and K accumulation in tree biomass and nutrient use efficiency in wood and biomass production.
施P肥还增加了树木N、P和K的养分积累量，提高了上述养分的利用效率。
The threshold and accumulation effects of N deposition could also be predicted by an intermediate disturbance hypothesis(IDH).
沉降的阈值效应和累积效应也都符合中度干扰理论。
A solution culture experiment was conducted to study the dynamics of dry matter accumulation and n, p, K absorption by flue-cured tobacco under different boron concentration.
采用溶液培养方法，研究了不同硼浓度下烤烟干物质积累动态和养分吸收动态变化特点。
Effect of sowing time on n, P, K and the nutrient accumulation of sweet corn seed.
不同播期对甜玉米籽粒n,p,K及可溶性糖的积累的影响研究。
Result showed that HPE maize performed a higher N and K absorption efficiency in low P regiment, its N, K absorption and dry matter accumulation were less affected by low P supply.
结果表明，磷高效利用型玉米氮钾素吸收和干物质积累受低磷处理的影响较 小，表现出对 氮、钾的高效吸收。
The results showed that maize straw returning field combined low amount N did not promote the accumulation of organic carbon significantly, as compared with NPK treatment.
结果表明：与NPK处理比较，玉米秸秆还田配施低量N肥没有显著促进黑土有机碳的积累。
However, the increase of the two parameters above were not simultaneously, the increment of soil NO3-N accumulation was much higher than that of total N accumulation in wheat plants.
施用氮肥能提高小麦拔节期和成熟期植株全氮积累量和土壤NO3-N积累量，但两者并非同步增加，土壤NO3-N积累量增加的幅度远远大于植株全氮积累量的增长幅度。
There was a close relationship between the nutrient uptake and distribution of N, P, K and the accumulation and distribution of dry matter.
棉株对养分的吸收分配中心与干物质积累分配中心一致。
The results show the amounts of NO3-N accumulation in the soil profiles and their extents to leach into the deeper soil layers are increased significantly as the nitrogen fertilizer usage increased.
结果表明：随着氮肥用量的提高，土壤剖面硝态氮累积量明显增加，其向土壤下层淋溶的程度也越严重；
In upper of the medium, the element accumulation of n, Ca, Mg, cu, Fe and Mn may be harmful to the plant.
试验显示营养液中的氮和钙、镁、铜、铁、锰等元素在基质上部富集，可产生肥料盐害。
Accumulation of n, P, K and sugar was increased during seed-filling stage in Ceratoides.
驼绒藜属植物种子形成过程中，N、P、K、糖等营养物质积累呈增加的趋势。
Soybean growth and development needs "startup-N", and the best effect of the "startup-N" on the soybean N-accumulation is until the V3 period.
大豆生长需要一定量的“启动氮”，“启动氮”的作用维持到V3期对大豆氮的积累和产量形成效果最好。
Zinc fertilizer increased contents of N, P, K, Fe, Cu and B of wheat seed, Boron fertilizer application promoted the absorption and accumulation of P, K, Zn and Mn in wheat grain;
增施锌对小麦氮、磷、钾、铁、铜和硼的吸收均有促进作用；施硼有利于小麦对磷、钾、锌和锰元素的吸收；
Zinc fertilizer increased contents of N, P, K, Fe, Cu and B of wheat seed, Boron fertilizer application promoted the absorption and accumulation of P, K, Zn and Mn in wheat grain;
增施锌对小麦氮、磷、钾、铁、铜和硼的吸收均有促进作用；施硼有利于小麦对磷、钾、锌和锰元素的吸收；
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