Ammonia volatilization appears regular change in the condition of the same amount of urea applied to the soil with different treatments of phosphorus fertilizer application.
当等量尿素追施入不同施磷处理土壤后，氨挥发速率出现规律变化。
It indicates under the condition of the same investment, application of straw chemical fertilizer will obtain higher economic benefits than chemical compound fertilizer and diammonium phosphate.
进一步研究还发现，腐熟秸秆与化肥的复混使用可以获得较高的经济效益，其产投比远远高于磷酸二铵和其它普通复混肥。
Wheat population quality, root system distribution, grain yield and quality were studied under different fertilizer application treatment in the condition of superhighyielding wheat cultivation.
在小麦超高产栽培条件下利用不同施肥量和不同施肥比例的处理，研究了小麦群体质量、根系分布、子粒产量和品质。
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