Response of Seed Yield, Its Components and Leaf Area Index of Spring Corn to Consume Vermicompost and Iron Nano fertilizer


1 Msc. Graduated, Department of Agronomy, Ahvaz branch, Islamic Azad University, Ahvaz, Iran.

2 Department of Agronomy, Ahvaz branch, Islamic Azad University, Ahvaz, Iran.

3 Department of Soil Science, Ahvaz branch, Islamic Azad University, Ahvaz, Iran.


BACKGROUND: Organic farming has emerged as important priority area globally in view of growing demand for safe and healthy food and long term sustainability and concerns on environmental pollution associated with indiscriminate use of agrochemicals. Nano fertilizers can be easily absorbed by crops and may exhibit a prolonged effective duration of nutrient supply in soil/crop compared to the conventional fertilizers.
OBJECTIVES: Evaluate effect of different level of vermicompost and Nano iron fertilizer on seed yield, its components and leaf area index.
METHODS: Current research was carried out via split plot experiment based on randomized complete blocks design with three replications along 2018 year Main plot included three level of vermicompost (V0: nonuse of vermicompost or control, V1: 5 t.ha-1 vermicompost, V2: 10 t.ha-1 vermicompost) was consumed at planting stage. Also subplots consisted four level of Nano iron fertilizer (F0: Nonuse of Nano iron fertilizer or control, F1: 0.002 L.ha-1, F2: 0.004 L.ha-1 and F3: 0.006 L.ha-1 Nano iron fertilizer) was used at 3 to 4 leaves stage.
RESULT: According result of analysis of variance effect of different level of vermicompost and Nano iron fertilizer on all measured traits was significant at 1% probability level also interaction effect of treatments (instead biologic yield) was significant at 5% probability level. Mean comparison result of interaction effect of treatments indicated the maximum amount of number of rows per ear (20), number of seed per row (49), 1000 seeds weight (545 gr), seed yield (6000 gr.m-2), biological yield (1939 gr.m-2), harvest index (30%) and leaf area index (5.81) belonged to 10 t.ha-1 vermicompost with 0.006 L.ha-1 iron Nano fertilizer, also lowest amount of measured traits was for nonuse of vermicompost and iron Nano fertilizer or control treatments.
CONCLUSION: Consume 10 t.ha-1 vermicompost with 0.006 L.ha-1 iron Nano fertilizer led to achieve highest amount of yield, its components, harvest index and leaf area index and can be advice to farmers.


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