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首页> 外文期刊>Tropical Agriculture and Development >Secondary Horticultural Cropping in a Paddy Field in the Mwea Irrigation Scheme, Kenya:Different Drainage Techniques and Effect on Selected Crop Yields
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Secondary Horticultural Cropping in a Paddy Field in the Mwea Irrigation Scheme, Kenya:Different Drainage Techniques and Effect on Selected Crop Yields

机译：MWEA灌溉方案中稻田中的次生园艺作品，肯尼亚：不同的排水技术和对所选作物产量的影响

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摘要

Perennial water shortage in the downstream area of the Mwea Irrigation Scheme (MIS) remains a major problem. Therefore, some farmers try to increase their cash income by cultivating horticultural crops after the main rice crop, but their cultivation technology has not yet been established. We conducted a field experiment to study the effectiveness of different surface drainage methods and how they affect the yield of selected crops because the vertisol that dominates the irrigated area is highly fertile but has extremely poor drainage. We compared a control area with surrounding ditches with a new drainage area consisting of additional ditches within the field. During the 2016 long rainy season (January-July), the period when soil water tension starts to rise in the new drainage area was earlier than that in the control area. The soil water content in the control area was slightly higher compared to the new drainage area. Therefore, it was found that the drainage capacity was enhanced by the new drainage method. There was no significant increase in the yield of soybean or green gram due to the drainage improvement. Meanwhile, disease occurrence was suppressed and the yield was increased in tomatoes by improving field drainage, and also by using "Rambo FI" and "Kilele FI". Therefore, it was shown that bacterial wilt resistant cultivars are effective for secondary tomato cropping in MIS paddy fields.
机译：MWEA灌溉计划（MIS）下游区域的多年生缺水仍然是一个主要问题。因此，一些农民试图通过在主要稻田作物后培养园艺作物来提高现金收入，但尚未建立其培养技术。我们进行了一个田间实验，以研究不同的表面排水方法的有效性以及它们如何影响所选作物的产量，因为主导灌溉区域的vertisol是高度肥沃但引流极差差。我们将一个控制区域与周围的沟渠进行比较，具有新的排水区，包括域内的额外沟渠。在2016年长雨季（1月至7月）期间，土壤水张力开始在新的排水区上升的时期早于控制区域。与新的排水区相比，对照区域的土壤含水量略高。因此，发现新的排水法增强了排水能力。由于引流改善，大豆或绿克的产量没有显着增加。同时，疾病发生抑制，通过改善现场排水，并通过使用“Rambo Fi”和“公里”，在西红柿中增加产量。因此，表明细菌枯萎的品种对于MIS稻田中的二次番茄种植是有效的。

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