Effects of Minimum and Conventional Tillage Systems on Nitrogen and Water Consumption of Wheat

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ZIAEYAN A.; MOSHIRI F.; ZAREIAN G.R.

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Journal: Iranian Journal of Soil Research Year:2019 | Volume:32 | Issue:4 Page(s): 431-442

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Title

Effects of Minimum and Conventional Tillage Systems on Nitrogen and Water Consumption of Wheat

Author(s)

ZIAEYAN A. | MOSHIRI F. | ZAREIAN G.R. | Issue Writer Certificate

Keywords

Single line-source irrigation systemQ2

Water stressQ1

Water use efficiencyQ2

Abstract

This research aimed to investigate the effects of minimum and conventional tillage systems on nitrogen and water consumption of wheat. By using a splitblock design and implementing two single line-source sprinkler systems, effects of four levels of 0, 90, 135, and 180 kgN. ha-1 from urea source and four levels of irrigation water (4610, 4240, 3850 and 3395 m3. ha-1) was studied under conventional and minimum tillage systems, . The results showed that, in both tillage systems, by reducing water consumption, the number of spikes. m-1, grain yield, and wheat nitrogen uptake decreased significantly. In conventional tillage system, grain yield, grain yield components, and nitrogen uptake increased by nitrogen application until 180 kgN. ha-1 levels; but in minimum tillage system, these parameters increased until 135 kgN. ha-1 and decreased at 180 kg N. ha-1 level. The results showed that values of the studied parameters in conventional system were higher than the minimum tillage system, but, except the number of spiklet. m-2 and amounts of grain protein, there were no differences between the two tillage systems. The results also showed that, in both tillage systems, the highest Water use efficiency (WUE, 1. 85 kg. m-3) was obtained from combined application of 135 kgN. ha-1 and 6700 m3. ha-1 irrigation water. However, the highest grain yield in conventional tillage system (8226 kg. ha-1) was obtained from combined application of 4610 m3. ha-1 of water and 180 kg. ha-1 nitrogen, with WUE of 1. 85 kg. m-3. In minimum tillage system, the highest grain yield (8378 kg. ha-1) was obtained from combined application of 3850 m3. ha-1 of irrigation water and 135 kg. ha-1 nitrogen, with WUE of 1. 79 kg. m-3. In other words, in the minimum tillage system, by using less water and nitrogen, a yield similar to the conventional tillage was obtained.

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APA: Copy

ZIAEYAN, A., MOSHIRI, F., & ZAREIAN, G.R.. (2019). Effects of Minimum and Conventional Tillage Systems on Nitrogen and Water Consumption of Wheat. IRANIAN JOURNAL OF SOIL RESEARCH (FORMERLY SOIL AND WATER SCIENCES), 32(4 ), 431-442. SID. https://sid.ir/paper/369238/en

Vancouver: Copy

ZIAEYAN A., MOSHIRI F., ZAREIAN G.R.. Effects of Minimum and Conventional Tillage Systems on Nitrogen and Water Consumption of Wheat. IRANIAN JOURNAL OF SOIL RESEARCH (FORMERLY SOIL AND WATER SCIENCES)[Internet]. 2019;32(4 ):431-442. Available from: https://sid.ir/paper/369238/en

IEEE: Copy

A. ZIAEYAN, F. MOSHIRI, and G.R. ZAREIAN, “Effects of Minimum and Conventional Tillage Systems on Nitrogen and Water Consumption of Wheat,” IRANIAN JOURNAL OF SOIL RESEARCH (FORMERLY SOIL AND WATER SCIENCES), vol. 32, no. 4 , pp. 431–442, 2019, [Online]. Available: https://sid.ir/paper/369238/en

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