The Effects of the Combined Tillage Machine Combinations on Some soil physio-chemical properties and Yield of Maize (Zea mays L.) | ||
| IRAQI JOURNAL OF DESERT STUDIES | ||
| Articles in Press, Accepted Manuscript, Available Online from 29 March 2023 | ||
| Document Type: Research Paper | ||
| DOI: 10.36531/ijds.2023.137165.1012 | ||
| Author | ||
| aqeel Johni nassir* | ||
| Soil Science and Water Resources | ||
| Abstract | ||
| The experiment included five different combinations of combined tillage machines: (T1) is a combined tillage machine that includes a 60 cm subsoiler, a chisel plow, a tandem disc harrow, and a grooved roller; (T2) is similar to (T1) but includes a 40 cm subsoiler. (T3), a combined tillage machine consisting of a subsoiler working at a depth of 60 cm and a chisel plow. (T4) is similar to (T3) except for a subsoiler working at a depth of 40 cm. (T5), a combined tillage machine consisting of a chisel plow and tandem disk harrow. The operating depths of a chisel plow, tandem disc harrow, and grooved roller in all combined tillage machine combinations are 20, 10, and 5 cm, respectively. A randomized complete block design (RCBD) with three replicates was used to design this experiment. The results indicated that T1 and T3 considerably improve the soil structure and characteristics. The bulk density, EC, and penetration resistance of soil decreased, whereas the saturated water conductivity and MWD of both tillage treatments (T1 and T3) increased significantly compared to T2, T4, and T5. The results revealed that the period of sampling had a significant effect (p | ||
| Keywords | ||
| Combined tillage machine,,; ,،,؛Soil properties,,; ,،,؛Maize yield | ||
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