旁遮普亚热带地区滴灌番茄种植的灌溉调度气候学方法

Q3 Agricultural and Biological Sciences
Vikas Sharma, N. M. Changade, Suryakant B. Tarate, K. K. Yadav, B. Yadav
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引用次数: 0

摘要

在旁遮普省法格瓦拉的可爱专业大学进行了为期两年(2022 年和 2023 年)的田间试验,研究番茄作物对基于气候学方法(即彭曼-蒙蒂斯法、布莱尼-克里德尔法和泛蒸发法)的滴灌调度的响应。结果表明,与土壤水分耗竭法相比,滴灌法的所有灌溉调度处理对优化番茄产量(30.8 至 44.6 吨/公顷-1)、节水(27 至 50.7%)和用水效率(1.31 至 1.61 吨/公顷-1-厘米)都是可行的。在选定地区,日平均蒸散发(4.4 至 9 毫米/天-1)和蒸腾量(2.5 至 10.8 毫米/天-1)随不同生长阶段而变化,导致番茄作物需水量不同。根据彭曼-蒙蒂斯方法,在 100 % ET0 的条件下施水,可以成功满足作物的需水量,并获得显著的作物产量(44.6 吨/公顷-1)和用水效率(1.33 吨/公顷-1-厘米)。相关分析表明,在其他地区,由于灌溉调度的气象参数有限,农民可以在滴灌条件下根据日盘面蒸发量法按 90% ET0 对番茄作物进行灌溉。在选定的地区,布莱尼-克利多法效果不佳,在中期和后期显示出低估和高估了日蒸散发量值,与泛蒸发法相比,该方法节水更多(达 51%),但番茄产量明显减少。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Climatological approaches of irrigation scheduling for growing tomato crop under drip irrigation in sub-tropical region of Punjab
A field experiment was conducted at Lovely Professional University, Phagwara, Punjab for two years (2022 and 2023) to study the response of tomato crop to drip irrigation scheduling based on climatological approach viz. Penman-Monteith, Blaney-Criddle and pan evaporation. Result revealed that, the all treatments of irrigation scheduling were found feasible for optimizing tomato yield (30.8 to 44.6 t ha-1), water saving (27 to 50.7%) and water use efficiency (1.31 to 1.61 t ha-1-cm) under drip irrigation over soil moisture depletion approach. In selected region the average daily ET0 (4.4 to 9 mm day-1) and ETC (2.5 to 10.8 mm day-1) varies with different growth stages and results varying crop water demand of tomato. This water demand can successfully meet out by applying water at 100 % ET0 based on Penman-Monteith method with significant crop yield (44.6 t ha-1) and water use efficiency (1.33 t ha-1-cm). Correlation analysis indicated that, in case of other regions where the availability of weather parameters will be limited for irrigation scheduling, the farmer could irrigate their tomato crop at 90% ET0 based on daily pan evaporation method under drip irrigation. In selected region, the Blaney-Criddle method was found ineffective and shows under and overestimated values of daily ETo during mid stage and late stage which gives more water saving (up to 51%) but reduces significant tomato yield over Pan Evaporation method.
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来源期刊
Journal of Agrometeorology
Journal of Agrometeorology 农林科学-农艺学
CiteScore
1.40
自引率
0.00%
发文量
95
审稿时长
>12 weeks
期刊介绍: The Journal of Agrometeorology (ISSN 0972-1665) , is a quarterly publication of Association of Agrometeorologists appearing in March, June, September and December. Since its beginning in 1999 till 2016, it was a half yearly publication appearing in June and December. In addition to regular issues, Association also brings out the special issues of the journal covering selected papers presented in seminar symposia organized by the Association.
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