The Influences of Tillage System and Plant Residue on Nitrogen Uptake and Use Efficiency in Corn and Bean Intercropping Systems

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Akbari Farideh; DAHMARDEH MEHDI; Morshdi Ali; GHANBARI AHMAD; Khoramdel Soror

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Journal: JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE) Year:2019 | Volume:20 | Issue:4 Page(s): 785-799

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Title

The Influences of Tillage System and Plant Residue on Nitrogen Uptake and Use Efficiency in Corn and Bean Intercropping Systems

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Keywords

Conservation tillageQ2

cropping systemQ2

nitrogen harvest indexQ1

residues of wheatQ2

soil degradationQ1

Abstract

The current paper conducts an experiment to investigate the efficiency of nitrogen uptake and utilization as well as nitrogen harvest index in corn (Zea mays L. ) and bean (Phaseolus vulgaris L. ) intercropping, under the influence of tillage systems and wheat residues (Triticum aestivum). For so doing, it uses split-split plots, based on a randomized complete block design with three replications in the agricultural research field of Shahrekord within the growing season of 2016– 2017. In these tillage systems three levels (i. e., conventional, minimum, and no-tillage), four levels of crop residue (viz. 0, 30, 60, and 90% of straw yield of wheat), and five intercropping patterns (namely corn monoculture, bean monoculture, and corn/bean ratios of 2: 2, 3: 1, and 1: 3) make the main, sub, and sub-subplots, respectively. Results show that the highest and lowest nitrogen content in grain corn belong to no-tillage systems with 60% of plant residues and sole cropping corn (86. 47 kg. ha-1), and conventional tillage with 0% of plant residues and 1: 3 ratio (51. 22 kg. ha-1), respectively. By increasing the amount of wheat residue up to 60%, the nitrogen content in grain and biomass of corn and bean rises, resulting in the least amount of this index observed in the condition, wherein wheat residues are not used. The highest N utilization efficiency has been obtained in 3: 1 and 2: 2 for corn and bean in no-tillage systems with 60% of plant residues, indicating a clear superiority of intercropping than sole cropping. Therefore, intercropping corn and bean can improve nitrogen utilization efficiency.

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APA: Copy

Akbari, Farideh, DAHMARDEH, MEHDI, Morshdi, Ali, GHANBARI, AHMAD, & Khoramdel, Soror. (2019). The Influences of Tillage System and Plant Residue on Nitrogen Uptake and Use Efficiency in Corn and Bean Intercropping Systems. JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), 20(4 ), 785-799. SID. https://sid.ir/paper/209505/en

Vancouver: Copy

Akbari Farideh, DAHMARDEH MEHDI, Morshdi Ali, GHANBARI AHMAD, Khoramdel Soror. The Influences of Tillage System and Plant Residue on Nitrogen Uptake and Use Efficiency in Corn and Bean Intercropping Systems. JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE)[Internet]. 2019;20(4 ):785-799. Available from: https://sid.ir/paper/209505/en

IEEE: Copy

Farideh Akbari, MEHDI DAHMARDEH, Ali Morshdi, AHMAD GHANBARI, and Soror Khoramdel, “The Influences of Tillage System and Plant Residue on Nitrogen Uptake and Use Efficiency in Corn and Bean Intercropping Systems,” JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), vol. 20, no. 4 , pp. 785–799, 2019, [Online]. Available: https://sid.ir/paper/209505/en

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