沙冬青3414田间肥效试验初报

采用3414试验设计方案研究了氮、磷、钾对沙冬青苗木生长状况的影响。试验通过分析不同施肥处理下沙冬青苗木的苗高、地径和分枝数的年生长量得出结论:在试验条件下,施尿素、过磷酸钙、硫酸钾量分别为0.28 g/kg、0.28 g/kg、0.38 g/kg时,沙冬青苗高和地径生长量最大;施尿素、过磷酸钙、硫酸钾量分别为0.19 g/kg、0 g/kg、0.38 g/kg或0.19 g/kg、0.14 g/kg、0.38 g/kg时,沙冬青苗木分枝数最多。

Fertilization Effect Experiment of 3414 Fertilizer for Ammopiptanthus mongolicus

The effect of N, P and K on the growth of Ammopiptanthus mongolicus seedlings was studied by means of 3414 experiment design plan to analyze the seedling height and annual growth of ground base and branches of A. Mongolicusunder different application of fertilizers. The conclusion was that, under the experiment condition, the seedling height and growth ofground base of A. Mongolicuswerelargest when are the most when the applications of urea, calcium superphosphate and potassium were 0.28g/kg, 0.28g/kg, and 0.38g/kg, respectively; and the number of its branches was the largest when the applications of urea, calcium superphosphate and potassium were at 0.19g/kg, 0 g/kg and 0.38g/kg, or 0.19g/kg, 0.14g/kg, and 0.38g/kg.