采用磷肥和有机肥田间定位试验的作物产量效应和土壤积累磷的环境风险相结合的方法。
The yield response of crop to phosphate fertilizer and organic manure and the loss risk of phosphorus in soil were studied using a long-term experiment.
缺磷植物常发育不良，叶片呈典型的深绿色，常伴有花青素的积累。
Phosphorus-deficient plants are often stunted, with leaves turning a characteristic dark green, often with the accumulation of anthocyanin.
利用根盒培养和田间栽培方法，研究了黑土和黑钙土玉米根际有机磷的亏缺和积累的状况。
Rhizo-box and field cultivation methods were used to study the delpletion and accumulation of organic P in maize rhizosphere on blackland and chernozem.
研究了夏播芝麻对氮、磷、钾等9种营养元素的吸收规律及其与干物质积累的关系。
The absorption rules of 9 kinds of nutrients and dry matter accumulation of summer sesame and their correlations were studied.
在五里湖富营养化过程中，氮、磷及有机物质在湖底沉积物中大量积累。
In the eutrophication process of Wuli lake, large amount of nitrogen, phosphorous and organic matter accumulated in the sediment of the lake bottom.
结果表明，秸秆还田提高了作物产量，增加了土壤有机碳积累和土壤氮磷含量，且能活化土壤磷素。
The results showed that straw application increased crop yield, soil organic carbon accumulation, soil total nitrogen and phosphorus content as well as phosphorus activation.
对14c -六六六、14c -毒死蝉、14c -敌百虫和14c -久效磷在几种海洋动物中的积累和降解进行了比较研究。
A comparative study on accumulation and metabolism of 14c-hch, 14c-chlorpyrifos, 14c-trichlorphon and 14c-monocrotophos by some Marine animals is carried out.
四种动力学方程均能很好地描述积累态磷的活化。
Four kinetic equations can well describe the activation of accumulative phosphorus.
磷效率高的家系具有在低磷胁迫下苗高生长量大、干物质积累能力强、须侧根发达及对磷肥投入敏感性低等特点。
The families with great P efficiency have great height growth rate, high productivity and extensive lateral root system under low phosphorus stress and low sensitivity to phosphorus supply.
不同生育阶段氮和磷的吸收与积累量最大值在结荚至鼓粒期，分别占总量的47.74%和44.00%。
The absorption and accumulation of Nitrogen, Phosphorous were the highest at the period from pod-setting to pod-filling, account for 47.74% and 44.00% of total respectively.
低磷胁迫使马铃薯幼苗植株磷积累量大幅度下降。
After phosphorus deficiency treated, phosphorus accumulations of plants were greatly reduced.
氮磷钾合理配合施用能减少蔬菜硝酸盐积累。
Fertilization in the proper proportion of nitrogen, phosphorus and potassium can decrease the accumulation of nitrate in vegetable.
干旱胁迫下，磷能有效地维持较高的叶片RWC，增加其SOD和POD活性，减少MDA积累，提高生物学产量。
Phosphorous could not only keep a higher RWC and lower MDA efficiently in maize leaves, but also could increase the SOD and POD activities and biological yield.
低磷水平下马尾松种源磷效率与磷素利用效率有关，而与磷素吸收效率相关性较小，磷效率和磷素利用效率高的种源其干物质积累量较高。
PE was significantly and positively related to P use efficiency, not related to P absorption. The provenances with higher PE had greater dry matter accumulation.
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。
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.
对于相同土壤磷水平的土壤，磷素在上层土壤积累量较大，随着土层深度的加深，磷素含量逐渐减小。
In soils with the same phosphorus levels, the contents of various forms of phosphorus were accumulated mainly in the profile of a surface layer and decreased gradually with the depth of the profile.
对于相同土壤磷水平的土壤，磷素在上层土壤积累量较大，随着土层深度的加深，磷素含量逐渐减小。
In soils with the same phosphorus levels, the contents of various forms of phosphorus were accumulated mainly in the profile of a surface layer and decreased gradually with the depth of the profile.
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