| 摘要: |
| 通过二年三茬作物的田间微区15N 示踪实验,研究了亚硫酸铵(ASI)、亚铵造纸制浆废液(WPF)和液氨(AA)的肥效和残效。作物是水稻—小麦—水稻,主要结果表明,这三种肥料都是很有使用价值的,有待开发。 |
| 关键词: 15N-示踪 肥效 残效 |
| DOI： |
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| 基金项目: |
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| A STUDY ON THE FERTILIZER EFFICIENCY AND RESIDUAL EFFECT OF SOME N-FERTILIZERS BY 15N TRACER |
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| Abstract: |
| The fertilizer efficiency and residual effect of ammonium sul- fite(ASI),waste fluid of paper making by ammonium sulfite (WPF),anhydrous ammonia(AA) and ammonium sulfite (CK) were studied with planting paddy- rice (O.sativa.L.sub sp.japonica KATO)-whaat (Triticura aestivum L.)-paddy rice in farm-plot and pot culture in Beijing of China from 1984 to 1985 (reap three crops) .Results obtained were summarized as follows: 1.The yield of paddy rice (1st crop) was increased more obviously by ASI, WPF and AA than b... |
| Key words: 15N tracer fertilizer efficiency residual effect |
