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经3年的盆栽、田间小区和大面积示范试验研究表明,挪威Norsk Hydro公司的硝酸磷肥养分形态易被作物吸收,养分效应好,增产显著.平均比对照增产55%,比尿素增产15.3%.与等养分的尿素、磷酸二铵和尿素、重过磷酸钙的增产效果相近,仅比前者增产2.4%,比后者平均增产1.9%.在不同肥力的土壤上肥效稳定,比农户习惯施肥平均增产15.8%,也比尿素重过磷酸钙增产3.4%.该肥料的养分结构和行为,在陕西黄土区具有很大的增效潜力.
After 3 years of potted plants, field plots and large-scale demonstration experiments, it was found that the nutrient forms of nitrate fertilizer in Norsk Hydro in Norway were easily absorbed by crop plants and had good nutrient effect and yield increase, with an average increase of 55% over the control and a 15.3% increase over urea. Compared with the same nutrients such as urea, diammonium phosphate, urea and SSPT, the yield was only 2.4% more than the former, 1.9% more than the latter.The fertilizer efficiency was stable in different fertility soils, Increase yield 15.8%, than urea urea superphosphate 3.4% increase.The nutrient structure and behavior of the fertilizer in Shaanxi loess area has a great potential for efficiency.