基于不同方法的汉中盆地稻麦轮作土壤供氮能力评价
张方方1,2(
),马宁博1,3,岳善超1,2,李世清1,2()
),马宁博1,3,岳善超1,2,李世清1,2()
Evaluation of Nitrogen Supply Capacity of Paddy and Wheat Rotation Soil in Hanzhong Basin by Different Determination Methods
ZHANG FangFang1,2(),MA NingBo1,3,YUE ShanChao1,2,LI ShiQing1,2()
),MA NingBo1,3,YUE ShanChao1,2,LI ShiQing1,2()
图5. 盆栽黑麦草地上部累积吸氮量与化学方法测定氮素值的相关关系
a：测得氮素值包括起始矿质氮;b：测得氮素值不包括起始矿质氮。下同
Fig. 5. Correlations between aboveground N uptake of ryegrass and N value determined by chemical methods
a: The measured N values include initial mineral N; b: The measured N values don’t include initial mineral N. The same as below
