Striga hermonthica infestation causes significant losses of maize yield in the Nigerian savannas and several technologies have been developed and promoted to control Striga in maize. However, since no single technology has been found to be effective against Striga, integrated management is needed to achieve satisfactory and sustainable Striga control. Both on-station and on-farm trials were undertaken from 2013 to 2015 in Bauchi and Kano States of Nigeria to evaluate the performance of integrated Striga control technologies. In the on-station trials, a soybean–maize rotation did not suppress Striga in maize in either location. However, nitrogen application suppressed and reduced Striga infection, except in Bauchi in 2014. The soybean–maize rotation accompanied by N application reduced Striga damage in both locations. On farmers’ fields, rotating soybean with maize significantly reduced Striga infection. At the same time, the use of maize varieties with a combined tolerance to drought and resistance to Striga parasitism also increased maize grain yield on farmers’ fields, probably due to three factors: a reduction in Striga infection, reduced effects of a mid-season moisture deficit, and increased uptake of nutrients from the soil. We concluded that the use of Striga-resistant maize varieties in combination with the application of N fertilizer and rotation with soybean could increase the productivity of maize in Striga-infested fields in the Nigerian savannas.

中文翻译：

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在尼日利亚稀树草原使用大豆轮作、施氮和抗独脚金品种减轻独脚金寄生和玉米的损害

独脚金侵扰导致尼日利亚稀树草原的玉米产量严重损失，并且已经开发并推广了几种技术来控制独脚金在玉米中。然而，由于没有发现单一的技术可以有效地对抗独脚金，需要综合管理以实现令人满意和可持续独脚金控制。2013 年至 2015 年在尼日利亚包奇州和卡诺州进行了现场和农场试验，以评估综合独脚金控制技术。在现场试验中，大豆-玉米轮作并未抑制独脚金在任一位置的玉米中。然而，施氮抑制和减少独脚金感染，除了 2014 年的 Bauchi。伴随施氮的大豆-玉米轮作减少独脚金两个位置的损坏。在农田上，玉米轮作大豆明显减少独脚金感染。同时，使用兼具抗旱性和抗性的玉米品种。独脚金寄生还增加了农民田间的玉米产量，这可能是由于三个因素：独脚金感染，减少季节中期水分不足的影响，并增加从土壤中吸收养分。我们得出结论，使用独脚金抗性玉米品种结合施氮肥和与大豆轮作可提高玉米产量独脚金- 尼日利亚稀树草原出没的田野。