土壤中各形态氮与玉米吸氮量关系的研究

Study on Correlation of Nitrogen Forms with Nitrogen Absorption Contents of Maize

相关分析表明,黑龙江省东部地区的白浆土中各形态氮与玉米植株吸氮量之间的相关程度不同。土壤N0值、碱解氮、酸解总氮、氨基酸态氮、可矿化氮与玉米植株吸氮量间呈极显著正相关;全氮、氨基糖态氮和酰胺态氮与玉米植株吸氮量也呈显著正相关;而未知态氮和非酸解总氮与植株吸氮量间的相关性不显著。

The relative analyses show that the correlation extents were different between various nitrogen forms and nitrogen absorption contents of maize in Albic soil of east regions of Heilongjiang Province. The No value, available nitrogen, hydrolizable nitrogen, amino acid-nitrogen and mineralizable nitrogen had very significant positive relation with nitrogen absorption contents of maize. Also, the total nitrogen, amino sugar nitrogen and ammonium nitrogen had significant positive relation with nitrogen absorption contents of maize. But the unidentified nitrogen, unhydrolizable nitrogen had no relation with the nitrogen adsorption contents of maize.