The Impact of Some Seedbed Preparation Conditions on Corn Biometric Parameters
- Country : Egypt
- Subject : Agricultural Engineering
Keywords : Soil moisture content, plowing depth, plowing speed, corn crop
Abstract
Field experiment was conducted during summer season of 2016 on corn crop (zea mays) grown on clay loam soil to investigate the effect of some seedbed preparation conditions: three soil moisture content at plowing Ө1, Ө2; Ө3 (8.1, 17.1; 26.4% w/w), three plowing depth d1, d2; d3 (10, 20; 30 cm) and two plowing speed s1, s2 (1.93, 10.33 kmh-1) on some biometric parameters. Chisel plow was used for seedbed preparation. The experiment design was completely randomized block and split-split plot. Soil moisture content at plowing, plowing speed and depth were located in the main, sub main and sub-sub main plots, respectively. Surface irrigation (Basin) was used for irrigation. All other agricultural processes for corn crop management were used according to the recommendation of Ministry of Agriculture and land Reclamation. Corn crop was harvested 100 days after planting. The data on plant height (cm), root length (cm), stem diameter (cm) fresh weight of both shoots and roots (g plant-1) and cob fresh weight (g cob-1) were recorded. Data obtained were subjected to statistical analysis. Differences in the recorded data among treatments were significant at the 5% level in most cases. According to the recorded data values, the treatments used could be arranged in the flowing ascending orders: Ө3< Ө2< Ө1, d2< d1< d3 and s1< s2. It seemed that the optimum condition of seedbed preparation for corn crop grown on clay loam soil at the experimental location was (Ө1, d3; s2) ie. 8.1%, 30 cm; 10.33 kmh-1.
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