以春性小麦(Triticum aestivum)品种宁麦6号为试验材料,试验前从不同密度田块选取不同蘖数的麦苗,在越冬期和分蘖末期进行各项指标测定,得到以下结果: 1.无论是在越冬期,还是在分蘖末期,分蘖数多的麦苗对NO_3~--N吸收多,转化快,多蘖株麦苗的氮素同化能力明显强于少蘖株麦苗。 Taking wheat variety Triticum aestivum Ningmai No.6 as test material, wheat seedlings with different tillers were selected from different density field plots before the experiment, and the indicators were measured at the overwintering and tillering stages. The results were as follows: During the winter or at the end of tillering stage, the wheat seedlings with more tillerings absorbed more NO_3 ~ - N and transformed faster. The nitrogen assimilation ability of the wheat seedlings with multiple tillers was obviously stronger than that of the tiller plants.