The relationship between ammonium nitrogen content and ammonia volatilization with different phosphorus fertilizer application was studied. 对不同施磷量土壤铵态氮浓度与氨挥发的关系进行了研究。
Priming effect of ammonium nitrogen fertilizer on soil nitrogen under waterlogged condition 淹水培养条件下铵态氮肥对土壤氮素的激发效应
Ammonium and Nitrate of Soil and Yield and Quality of Tomato as Influenced by the Application of Controlled Release Nitrogen Fertilizer 控释氮肥对土壤NH4~+-N、NO3~&N及番茄产量和质量的影响
The compound mixed fertilizer made by element ammonium nitrogen fertilizer could raise up the effect of nitrogen fertilizer while the compound mixed fertilizer made by element amidonitrogen fertilizer could lower the fertilizer effect a little. 单质铵态氮肥制成复混肥后能提高其氮素肥料的效应,而单质酰胺态氮肥制成复混肥后肥效会略有降低。
Ammonium nitrogen fertilizer had good influence on leaf P content in leaf-expansion stage, while urea in fruit-expansion stage and hard stone stage. 早实核桃叶片P含量在展叶期期间铵态氮肥对其影响较好,果实膨大期和硬核期为尿素对其影响较好。
Ammonium nitrogen fertilizer had the optimal effect on walnut photosynthesis, followed by urea and nitrate nitrogen fertilizer. 铵态氮肥对核桃光合作用的影响效果最优,其次为尿素、硝态氮。