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首页> 外文期刊>Aspects of Applied Biology >EFFECTS OF CONVENTIONAL AND NO TILLAGE SYSTEMS ON SOIL WATER DYNAMICS AND WATER USE EFFICIENCY IN IRRIGATED CONTINUOUS MAIZE IN A SEMIARID AREA OF CASTILE AND LEON (SPAIN)
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EFFECTS OF CONVENTIONAL AND NO TILLAGE SYSTEMS ON SOIL WATER DYNAMICS AND WATER USE EFFICIENCY IN IRRIGATED CONTINUOUS MAIZE IN A SEMIARID AREA OF CASTILE AND LEON (SPAIN)

机译：常规和免耕方式对半干旱半透明化剑麻和莱昂地区（西班牙）灌溉玉米的土壤水分动态和水分利用效率的影响

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The region of Castile and Leon has the largest area of maize (136.500 ha) and produces about one third of Spain production. The predominant cropping system in irrigated maize in this semi-arid region is conventional tillage (CT), particularly the mouldboard plow. Fanners in this area use intensive tillage practices to manage the large quantity of crop residue, to recover lost nutrients and to improve weed control when preparing the seedbed for the next crop. Conversion from conventional tillage to notillage (NT) in productive soils and in irrigated continuous maize (Zea mays L.) would improve soil physical properties and soil water storage with benefits for crop production, particularly in semi-arid environments (Alvarez & Steinbach, 2009). NT system reduces soil erosion and nutrient losses (Lai, 2004) and increases water storage (Malhi el al., 2001), as well as the cost of production (Sombrero el al,t 2016).The study of soil water dynamics in different tillage conservation practices is essentialfor improving crop yield and optimizing the management of water in irrigated crops. Under these conditions, it is necessary to know the relationship between yield and of the quantity of irrigation water used which is especially important for field maize, the most important irrigated crops in Spain. Therefore, the objective of this study are to evaluate the effects of CT and NT on soil water dynamics and the efficiency of water use of maize crop in a semiarid area of Castile and Leon (Spain).
机译：卡斯蒂利亚和莱昂地区玉米面积最大（136.500公顷），约占西班牙产量的三分之一。在半干旱地区，灌溉玉米的主要种植系统是常规耕作（CT），特别是mo板犁。在该地区的农户采用密集的耕作方法，以管理大量的农作物残渣，回收损失的养分，并在为下一个农作物准备苗床时改善杂草控制。在生产性土壤和灌溉的连续玉米（Zea mays L.）中从常规耕作转化为免耕（NT），将改善土壤物理性质和土壤蓄水，对作物生产特别是在半干旱环境中有利（Alvarez＆Steinbach，2009） ）。 NT系统减少了土壤侵蚀和养分流失（Lai，2004），增加了水的储量（Malhi等人，2001），以及生产成本（Sombrero等人，t 2016）。耕作保护措施对于提高作物产量和优化灌溉作物的水管理至关重要。在这些条件下，有必要知道产量与灌溉用水量之间的关系，这对田间玉米（西班牙最重要的灌溉作物）尤其重要。因此，本研究的目的是评估卡斯提尔和莱昂（西班牙）半干旱地区CT和NT对土壤水分动力学的影响以及玉米作物的水分利用效率。

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