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Open Access Article
1 - Impact of Zinc Sulfate and Nitrogen Fertilizer on Growth Curves and Crop Production of Green Beans (Phaseolous vulgaris L.)
Mehrnosh Kermanshahi Hasan NorianiBACKGROUND: Mineral nutrition is one of the most important factors affecting plant growth and productivity, also growth analysis is a way to assess what events occurs during plant growth. OBJECTIVES: The goals of this study were to investigate the effect of different le MoreBACKGROUND: Mineral nutrition is one of the most important factors affecting plant growth and productivity, also growth analysis is a way to assess what events occurs during plant growth. OBJECTIVES: The goals of this study were to investigate the effect of different level of nitrogen fertilizer and zinc sulfate on growth indices of Green bean. METHODS: Current research was conducted according split plot experiment based on randomized complete blocks design during summer of 2012 with three replications. The main plots consisted of four level of nitrogen form source of urea (N1: 0, N2: 30, N3: 60, N4: 90 kg.ha-1) and four levels of zinc sulfate (Z1: 0, Z2: 10, Z3: 20 and Z4: 30 kg.ha-1) belonged to sub plots. RESULT: According result of growth analysis the highest amount of total dry matter (800 gr.m-2), leaf area index (4.21), crop growth rate (27.35 gr.m-2.day-1), relative growth rate (0.037 gr.gr-1.day-1) and net assimilation rate (6.7 gr.m-2.day-1) was belonged to N4 treatment and the lowest amount of treatments was for control. CONCLUSION: Final result of current study revealed use of 90 kg.ha-1 nitrogen with consume zinc sulfate treatment led to achieve maximum level of growth indices in compare to another treatments and can advise to farmers in studied region. Manuscript profile
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