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研究了灌溉条件下,PAM对于土壤孔隙度的改变由此带来的对于紫花苜蓿出苗率和出苗整齐度的影响,并且采用了实物对照、图表和数据分析的方法,提出了一种有利于北方广大地区种植苜蓿提高出苗率和整齐度的有效途径。
The effects of PAM on the porosity of soil and the emergence rate and emergence uniformity of alfalfa under irrigation were studied. The physical control, the chart and the data analysis were used to study the effects of PAM on soil porosity. Effective ways for planting alfalfa to improve germination rate and uniformity in the vast area.