P had more important effects on corn qualities than K. Compared with CK, long-term N-applying only could improve the corn nutrition, but decrease the flour ash content and starch viscosity.
长期单施氮肥较不施肥的对照（CK）玉米籽粒营养品质有一定的改善，但籽粒粗脂肪含量和淀粉粘度有不同程度的下降。
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。
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。
There were significant negative correlations between nitrate content and total n, protein n, total p, protein p, protein K of lettuce leaf.
莴笋叶片硝酸盐含量与全氮、蛋白氮、全磷、蛋白磷和蛋白钾含量呈极显著负相关。
The results show that the different fertilization levels of N, P and K have the remarkable influence on growth quantity, yield of branch and leaf and taxol content of T.
结果表明，不同的氮、磷、钾施用水平对曼地亚红豆杉‘Hicksii’盆栽苗和田间栽培苗的生长量、枝叶产量和紫杉醇含量有显著影响，影响效应从大至小依次为氮、磷、钾。
P-fertilizer and K-fertilizer are avail to promoting fibre content, but only using N-fertilizerwill reduce fibre content. 7.
磷肥、钾肥有利于纤维含量的提高，而单独施用氮肥则降低了纤维含量。
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。
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。
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