Abstract Continuous cropping is a common agricultural practice in Northeast China. Focusing on soybeans cropped continuously for two consecutive years, this article fully explores the effects of the amount of water, fertilizing rate, and fertilizing method on the growth and yield of soybean. Specifically, an orthogonal experimental plan was designed involving these three factors. Each factor was divided into three levels: the amount of water was set as 52.62 mm (W1), 73.41 mm (W2), and 138.6 mm (W3); the fertilizing rate was set as 6.75 kg/hm2 (N1), 9.75 kg/hm2 (N2), and 13.5 kg/hm2 (N3); and the fertilizing method was set as center pivot sprinkler (CPS) fertigation (F1), microspray (MS) fertigation (F2), and MS fertilizing + CPS spraying and leaching (F3). During the experiments, the growth traits at each growth stage were monitored, and the soybean yield was measured. The following results were obtained through the analysis of the experimental data: the amount of water significantly affects the growth traits of soybean in the early stage of growth; the fertilizing rate greatly affects the stem diameter; and the fertilizing method is a major influencer of soybean yield. The highest yield (2811.88 kg/hm2) was observed in zone 4 (W2N1F2). This means irrigation and fertilization are very important to the normal growth of continuously cropped soybean; the yield loss induced by continuous cropping can be mitigated effectively through timely and adequate irrigation and topdressing, plus fertilization by the suitable method. To prevent yield loss, farmers in Northeast China are suggested to replace continuous cropping with crop rotation. If continuous cropping is unavoidable, foliage fertilizer should be sprayed timely for topdressing at the flowering and seed-filling stages.

中文翻译：

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中枢喷灌施肥对连作大豆产量的影响

摘要 连作是东北地区常见的农业生产方式。本文以连续两年连作的大豆为研究对象，全面探讨了浇水量、施肥量、施肥方式对大豆生长和产量的影响。具体而言，设计了涉及这三个因素的正交实验计划。每个因素分为三个级别：水量设置为52.62毫米（W1）、73.41毫米（W2）和138.6毫米（W3）；施肥量设定为6.75 kg/hm2（N1）、9.75 kg/hm2（N2）和13.5 kg/hm2（N3）；施肥方式设置为中心支点喷灌（CPS）施肥（F1）、微喷（MS）施肥（F2）、MS施肥+CPS喷淋（F3）。在试验过程中，监测各生长阶段的生长性状，并测量大豆产量。通过对试验数据的分析，得出以下结果：水分对大豆生长初期的生长性状有显着影响；施肥量对茎粗有很大影响；施肥方法是影响大豆产量的主要因素。在区域 4 (W2N1F2) 中观察到最高产量 (2811.88 kg/hm2)。这意味着灌溉和施肥对连作大豆的正常生长非常重要；通过适时足量的灌溉和追肥，加上适当的施肥方法，可以有效减轻连作造成的产量损失。为防止减产，建议东北地区农民以轮作代替连作。如果连作不可避免，