Study Of Possible Poultry Manure Application On Grain Maize (Zea Mays L.) Nutrition In Lorestan Region
2006
Fallah, S., PhD Student of Agronomy at Tarbiat-Modarres University of Tehran | Ghalavand, A., Associate Professor of Tarbiat-Modarres University of Tehran | Khajehpour, M.R., Associate Professor of Isfahan University of Technology
It is necessary to use renewable resources, including organic fertilizers, to increase soil fertility and agricultural production in a sustainabie manner. In this respect, an experiment was conducted at the Agricultural Research Farm of Lorestan Weather Department, 30 kms from northeastern Khorramabad in 2004. The experiment was carried out in split plots based on randomized complete block design with four replications. Incorporation means of poultry manure with soil (by furrower or disk) as main plots and different levels of poultry manure (including 0, 10, 20, 30 ton / ha) were considered as subplots. The results suggested that incorporation of fertilizer with soil by furrower, compared with that of the disk, lead to significant increase in the number of kernel/row, 1000 kernels weight, grain yield and biological yield. However, the number of row/ear in incorporation of fertilizer treatment with soil by disk was more than that of the furrower. Also, there was not significant difference in the harvest index between two fertilization means. Different levels of poultry manure also caused significant increase in the features mentioned. Interaction effect of poultry manure incorporation means in its different levels was not significant in the features except for number of kernel/row. It was 30 ton/ha of animal manure treatment which had the highest grain yield, having not significant difference with 20 ton/ha of animal manure treatment. The grain yield was 800 kg.ha-1 more with in incorporated poultry manure by furrower than disk method. Furrower causes the manure to lie under the mound; therefore, the roots, access to the nutrients become well, and growth and yield improve.
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