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前言近年来国内外学者进行水稻节水栽培研究,探讨了不同灌溉方式对水稻生长、产量的影响,以及在不同灌溉条件下水稻对氮的吸收利用。研究表明,水分条件对水稻生长、产量和植株、土壤中营养元素的行为都有明显的影响。为了探讨我省滨海地区盐碱土种稻条件下,不同灌溉措施对土壤氮和肥料氮有效性的影响,1984年利用~(15)N 示踪技术进行了本项研究,为科学制订水稻节水高产技术提供理论根据。
Preface In recent years, domestic and foreign scholars conducted research on water-saving rice cultivation and discussed the effects of different irrigation methods on rice growth and yield, as well as the absorption and utilization of nitrogen by rice under different irrigation conditions. Studies have shown that the moisture conditions on rice growth, yield and plant, soil nutrients have a significant impact on the behavior. In order to investigate the effect of different irrigation measures on the effectiveness of soil nitrogen and fertilizer nitrogen under the conditions of saline-alkali soils in the coastal area of our province, this study was conducted in 1984 using ~ (15) N tracer technique. High yield technology to provide a theoretical basis.