It is showed from vector analysis: N, P and K are deficient in poplar unfertilized and they are limiting factors to poplar.
矢量法营养诊断结果表明：未施肥的杨树各组织N、P、K均为缺乏状态，N、P、K是杨树生长的限制性因素。
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；
The optimum combination program of N, P, and K in the basic fertilizer on the cold type turf was studied by using three factors saturated optimum design and gray game decision method.
运用三因素饱和最优设计与灰色局势评价方法，通过盆栽试验，研究了适合于科尔沁沙地土壤的冷地型草坪基肥的氮、磷、钾营养元素的配比方案。
The effect of N, P and K on protein content of rice has been studied with mathematical models. Single factor effect, double factor effect and marginal factor effect have been analysed.
利用数学模型研究了肥料N、P、K对糙米蛋白质含量的影响，分析了单因素效应、双因素效应、边际效应。
By using "3414" fertilizer experiment method, the contents of n, p, K and yield of onion in Gaoqiao area were comprehensively analyzed.
试验采用二次回归“3414”完全方案设计，对高桥地区圆葱植株的氮、磷、钾含量及产量进行了分析。
The Fuji, Ralls and Golden Delicious of apple varieties, 120 samples were collected from 20 orchards in Yanshan mountain area and the leaf n, p, K contents were analyzed.
采集了燕山山区20个苹果园富士、国光和金冠等品种的120份叶样，对叶片中氮、磷和钾含量进行了分析。
On the basis of applying sufficient amount of n, p, Potassium can improve the quality of farm products.
在氮、磷充足的基础上施用钾肥，能提高农作物品质。
The content of n, P, K, Ca and Mg in root decreased as root diameter increased.
根中氮、磷、钾、钙、镁含量随根径的增大而减少。
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。
Ca was positive correlation with n, p, Cu and Zn, but negative correlation with other 4 nutritional elements, especially with K.
钙与氮、磷、铜和锌呈正相关关系，与其他4种元素呈显著负相关关系，尤其是钾。
Because the use of n, p, and K can decrease the root rot disease index of pea, more plant ash and compost contained abundant available K must be used.
由于氮、磷、钾配施能减轻豌豆根腐病危害，所以目前应多施草木灰、堆肥等富含速效钾的肥料。
The distributed detection based on N-P criteria with parallel network is studied in this paper.
本文研究了并行网络结构下基于N-P准则的分布式检测理论与方法。
Searching an optimized executive strategy for every complex query is the key of success for database development. In database field, it is still an N-P problem.
对于一个复杂的查询，寻找一个优化的执行策略是数据库系统开发成功的关键所在，此项研究目前在数据库领域仍属于N - P问题。
It is proved by theoretical derivation that under the N-P criterion, the system fusion rules and the sensor decision rules are still the likelihood ratio threshold decision rules.
通过理论推导，证明了在N - P准则下，融合系统的融合规则和传感器的判决规则是似然比门限判决。
The result showed that proper N-P-K ratio fertilizer improved seedless wampee's yield significantly;
结果表明：适宜氮磷钾配比可以显著的提高无核黄皮的产量；
BL-environmental friendly flame retardant belongs to N-P flame retardant series, and its main raw materials are phosphoric acid and urea the same as ammonium polyphosphate (APP).
BL -环保阻燃剂属于N - P系阻燃剂，其主要原料与聚磷酸铵一样是磷酸与尿素，但因为其特殊的合成工艺使它不同于普通的聚磷酸铵。
Using the photovoltaic spectral response of epitaxial P-N junction, the paper suggests a method of determining the minority carrier diffusion length in N layer of N/P epitaxial silicon wafer.
本文提出了用N/P硅外延片的结光电压光谱响应确定N/P硅外延片中少子扩散长度的方法。
Organic-inorganic granular fertilizer made of chicken manure powder plus N, P, K chemical fertilizers and microelements B, Zn, Mn, et al.
利用鸡粪为主体原料配以N、P、K化学肥料和硼、锌、锰等微量元素制成便于贮藏、运输和使用的有机-无机颗粒肥。
The N-P series flame retardant becomes one of the focuses for the public requirement of non-halogen flame retardant.
在阻燃剂无卤化呼声越来越高的今天，N-P系阻燃剂成为令人关注的热点之一。
The R/T of radish was closely associated with N, P, K concentration.
氮、磷、钾浓度与萝卜的根冠比大小关系密切。
A field experiment was conducted to analyse the dynamics of biomass yield and n, p, K absorption by maize under different planting systems.
采用田间小区试验方法研究了不同种植方式下玉米产量，干物质积累动态和养分吸收动态变化特点。
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。
Process for manufacturing photosensitive flat-panel with Se allotropic P. N or N. P structure.
硒同素异晶P.N或N.P型结构的感光平板探测器的制造方法。
We researched the effects of N, P and K on quality of sweet Pepper by means of the "311-A" optimization compound design.
以彩色甜椒为试验材料，采用“311-A”最优混合设计，研究氮磷钾对彩色甜椒品质的效应。
The results indicated that: the soil moisture remarkably influenced N, P, K nutrition uptake.
结果表明：土壤水分对旱稻吸收N、P、K矿质元素有明显影响。
The growth and development, yield and quality, photosynthetic assimilation, and structure of Chieh-qua were affected by extraneous factors such as n, p, K nutrition and plant growth regulator.
营养和外源生长调节剂等外界环境因素对节瓜的生长发育、产量品质、光合同化及其解剖结构均有一定的影响。
The relationship between yield and fertilizer application was studied by means of "3414" method under different amounts of N, P and K applied .
采用“3414”试验方法研究了油菜在不同氮、磷、钾肥施用量组合下，油菜产量与施肥的关系，应用回归效应方程寻找最优施肥量组合。
Results showed that rational use of chemical fertilizer not only increased wheat yield, but also increased N, P and K content in wheat to some extent.
结果表明，合理施用化肥不但增产幅度大，还在一定程度上增加了小麦N、P、K养分浓度。
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。
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。
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