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在盆栽条件下几种复(混)合肥料对水稻均有增产作用,与对照相比稻谷增产60.8—77.7％,达到显著水准。但几种复(混)合肥之间无显著差异。用15～(N)示踪法测定水稻对复(混)合肥的氮素利用率:尿素磷铵为44.7％,氯磷铵为44.5％,尿素为44.1％,尿素加普通过磷酸钙(简称普钙)为40.8％,硝酸磷肥为36.4％。说明硝酸磷肥不宜于水稻田施用。用~(32)P示踪法测定水稻对几种复(混)合肥的磷的利用率:硝酸磷肥为22.6％,氯磷铵为22.4％,尿素磷铵为21.1％,尿素加普钙为20.7％,普钙为11.9％。水稻对供试复(混)合肥料磷的利用率均显著高于普钙。
Under potted condition, several kinds of complex (mixed) Hefei feed could increase yield of rice, and compared with the control, the yield of rice increased 60.8-77.7%, reaching a significant level. However, there is no significant difference between several complex (mixed) Hefei. The nitrogen utilization rate of Hefei in complex (mixed) Hefei was determined by 15 ~ (N) tracing method: 44.7% urea ammonium phosphate, 44.5% ammonium chloride, 44.1% urea and urea plus common superphosphate Calcium) was 40.8% and nitrate nitrate was 36.4%. Nitric acid phosphate fertilizer is not suitable for paddy field application. The utilization of phosphorus in several complex (mixed) Hefei rice was determined by ~ (32) P tracer method: 22.6% for nitrophosphate, 22.4% for ammonium chlorophosphate, 21.1% for ammonium phosphate and 21.1% 20.7%, general calcium was 11.9%. Rice for the test complex (mixed) Hefei phosphorus utilization rates were significantly higher than the general calcium.