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京引39号水稻,是宁夏引黄灌区(全国十二个商品粮基地之一)近年来推广的优良品种。为了从实践上和理论上探索对该水稻品种氮素化肥合理追肥技术,以达增产的目的,我们在吴忠县古城大队进行了氮素化肥追肥试验。试验结果表明,在同量氮素化肥情况下,本试验所用的追肥法,比一般通用的追肥法,增产达14.7％,比对照(不追肥)增产24.2％。现将我们的作法和结果介绍如下。
Jing cited 39 rice, Ningxia Yellow River Irrigation Area (one of the country’s 12 commodity grain base) in recent years to promote the fine varieties. In order to explore the rational nitrogenous fertilizer technology of topdressing rice varieties in practice and theory and to achieve the goal of increasing yield, we conducted a nitrogenous fertilizer top dressing experiment in the ancient city of Wuzhong County. The results showed that in the same amount of nitrogen fertilizer, the top dressing method used in this experiment increased yield by 14.7% compared with the common top dressing method and increased by 24.2% than the control (no dressing). Now we introduce the practices and results below.