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以金盏花(Tagetes erecta)为试验材料,通过人工控制灌水量的试验,比较了垄作与平作不同灌溉模式下,水分在0～80cm剖面上的动态迁移规律,并分析了不同灌水模式下的灌溉效率和肥料利用效率。结果表明,金盏花从播种至拔节期,0～40cm土层土壤含水量平作各处理均高于相应的垄作各处理,但经过拔节期稳定之后,垄作沟灌的土壤含水量要高于平作各处理;垄作沟灌各处理的深层(40～80cm)土壤水分含量均大于其相应平作处理。金盏花田的土壤水分纵深分布基本呈明显的“W”型分布,垄作沟灌的总产量均略高于相应的平作漫灌,A2B1(垄作沟灌4 200m3.hm-2)与A2B3(垄作沟灌3 000m3.hm-2)的总产量基本相当,而A2B2(垄作沟灌3 600m3.hm-2)处理最高,与A1B1(平作漫灌4 200m3.hm-2)差异显著,比A1B1增产25%。水分和肥料利用率分别为139.94kg.mm-1.hm-2和24.9%。垄作沟灌与常规耕作比较,有效地提高了土壤含水量,具有较好的节水作用,增产效果明显。
Talents of Erecta were used to test the dynamic migration of water in the 0 ~ 80cm profile under different irrigation patterns. The effects of different irrigation patterns Irrigation efficiency and fertilizer efficiency. The results showed that the soil water content of Calendula officinalis from 0 ~ 40 cm soil layer was higher than that of the corresponding ridge treatments at sowing to jointing stages, but the soil water content of furrow irrigation was higher after the jointing stage was stabilized The soil water content in deep layer (40 ~ 80cm) of furrow irrigation and furrow treatment were all greater than those of corresponding flat treatment. The distribution of soil water depth in Calendula officinalis was basically “W ” type. The total output of furrow irrigation was slightly higher than that of the corresponding flat irrigation. The A2B1 (4 200 m3.hm-2) and A2B3 While the total output of A2B2 (furrow irrigation of 3 600m3.hm-2) was the highest, which was significantly different from that of A1B1 (4 200m3.hm-2), yielding 25% more than that of A1B1. Water and fertilizer utilization rates were 139.94 kg.mm-1.hm-2 and 24.9%, respectively. Compared with conventional tillage, furrow irrigation improved soil water content effectively and had better water saving effect with obvious yield increase effect.