The effect of different plant densities on root growth in winter wheat was studied in field and pot culture experiments.
在大田和盆栽条件下，研究了种植密度对冬小麦根系的影响。单株次生根随密度增加而减少，且因生育期进展其影响更为显著；
Pot culture experiments were conducted to study the effect of molybdenum on the inorganic nitrogen compounds of winter wheat.
采用盆栽试验，研究了钼营养对冬小麦无机氮组分的影响。
The effect of application of organic materials on improving the fertility of Chernozem was studied with two-year pot culture experiments.
通过两年的盆栽试验，研究了有机物料对黑钙土的培肥作用。
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