Document Type : Research Paper
Authors
1
Master's graduate in irrigation and drainage engineering, Agricultural Sciences and Natural Resources University, Sari, Iran.
2
Department of Water Engineering, Agricultural Sciences and Natural Resources University, Sari, Iran.
3
Assistant Professor, Soil and Water Research Department, Golestan Agricultural and Natural Resources Research and Education Center, AREEO, Gorgan, Iran.
Abstract
This research was conducted to assess the effect of using precise irrigation management (PIM) on the yield and water use efficiency of sweet corn KSC403. Irrigation treatments include furrow irrigation with farmer irrigation management (SI), subsurface irrigation with PIM (PSSI), drip-tape irrigation with PIM (PTI) and drip-tape irrigation with irrigation management based on the national water requirement document (TI). Experiments were carried out in the crop year 2018-2019 in the form of a completely random design in three repetitions inside the lysimeter. The findings show that the SI and PSSI treatments have the highest and the lowest amount of water consumed during the growth period, respectively, and the PSSI, PTI and TI treatments did not have drain, but 22% of consuming water in the SI treatment was drained. In general, the highest biological, dry corn, green corn, biomass and dry fodder functions occurred in the PSSI treatment and the lowest in the TI treatment. The findings show that the highest values of biomass, biological, green corn, dry corn, wet fodder and dry fodder productivities in PSSI treatment are respectively with values of 124.9, 40.1, 47.8, 13.6, 73.2 and 24.2 kg.m-3 were obtained, while the lowest values of this productivity were gotten in the SI treatment. The results of this research emphasize the application of modern and precise irrigation systems because, with more appropriate delivery and distribution of water and nutrients, the performance and efficiency of water consumption will be increased.
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