Volume 20, Issue 78 (Winter 2017)                   JWSS 2017, 20(78): 103-112 | Back to browse issues page



DOI: 10.18869/acadpub.jstnar.20.78.103

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Heidari A, Haji Agha Alizadeh H, Yazdanpanah A R, Amiri Parian J. The Effect of Different Tillage Methods and Fertilizer Application on Soil Physical Properties and Corn Yield. JWSS. 2017; 20 (78) :103-112
URL: http://jstnar.iut.ac.ir/article-1-3439-en.html

1. Dept. of Agric. Eng. Res., Hamedan Agric. and natural Resour. Res. and Education Center, Agric. Res., Education and Extension Org. Hamedan, Iran.
Abstract:   (2554 Views)

Traditionally, most corn field in Hamedan Province is prepared for planting by moldboard plowing followed by a number of secondary tillage operations. In recent years conservation tillage systems have become more popular. This research was conducted in the form of a split plot experimental design with six tillage treatments and three replications. Main tillage methods including: (T1) conventional tillage (moldboard plow + cyclotiller equipped with roller), (T2) combination tiller (chisel plow equipped with roller) (T3) bandary tillage with chisel blades were considered as main plots and two P fertilizer application including: (F1) fertilize broadcasting and (F2) fertilizer bandary placement were considered as sub plots. During growing seasons, soil mechanical resistance (cone index), soil bulk density and water infiltration in soil were measured. At the end of the growing season (harvesting time), corn yield and its components were measured. Results indicated that tillage methods and soil depth had a significant effect on the soil bulk density and cone index. The effect of tillage on water infiltration in soil was significant. The effect of P fertilizer application on corn yield was significant (P≤0/01) and P fertilizer bandary placement with mean corn yield of 10862 kg/ha had higher yield value than the fertilizer broadcasting with mean corn yield of 9965 kg/ha. Although the difference between tillage methods for corn yield was not statistically different, T2 treatment with mean corn yield of 10913 kg/ha had higher yield value than the other two tillage treatments (T1 with mean corn yield of 10106 kg/ha and T3 with mean corn yield of 10222 kg/ha).

Full-Text [PDF 340 kb]   (525 Downloads)    
Type of Study: Research | Subject: Ggeneral
Received: 2017/01/24 | Accepted: 2017/01/24 | Published: 2017/01/24

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