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中国农业科学院原子能利用研究所
收稿日期:1985-05-14,
纸质出版日期:1986-03
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温贤芳, 李东阳, 张希忠, 等. 利用同位素15N、32P研究水稻对混(复)合肥料氮磷的吸收利用[J]. 核技术, 1986,09(3):41-43,59.
Xianfang Wen, Dongyang Li, Xizhong Zhang, et al. Study on utilization of nitrogen and phosphorus from compound fertilizer by rice using isotopes 15N and 32P[J]. Nuclear techniques, 1986, 09(3): 41-43,59.
供试土壤为北京浅色草甸水稻土(全氮0.116%,有机质2.35%,pH8.25,水解氮6.54 mg/100g土,全磷
6
8ppm,速效钾135.08ppm)。试验采用塑料桶,桶高26.5cm,上口直径为26.5cm,每桶装土9kg,每盆施N量为667mg
N:P
2
O
5
=1:0.5,即每盆施P
2
O
5
量为333.5 mg。水稻品种为秋光。
This paper describes the application of urea plus ordinary superphospate (OSP)which gave higher grains yield than by application of compound fertilizer UPA (urea plus compound ammonium phosphates). Isotopes tracer experiment showed that the utilization of nitrogen fertilizer are: mixed urea and OSP
>
urea and OSP separately
>
urea
>
urea - ammonium phosphates. The utilization of phosphorus by rice are: urea - ammonium phosphate
>
mixed urea and OSP
>
urea and OSP separately
>
OSP. It is shown that the A
N
-value of soil was significantly correlated with yield of rice grains.
冯音捷 等 , 原子能农业应用 , 3 , 39 ( 1984 ).
刘启鑫 等 , 土壤通报 , 2 , 21 ( 1983 ).
黄健安 等 , 土壤肥料 , 3 , 26 ( 1983 ).
黄韫璐 , 土壤肥料 , 1 , 44 ( 1985 ).
陈子元 等 , 核技术及其在农业科学中的应用 , 科学出版社 , 1983 年,第 437 页。
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