The effects of soil compaction on maize yield in heavy clay soil | |
| Author | Javid, Mohummad |
| Call Number | AIT Thesis no. AE-90-07 |
| Subject(s) | Plant-soil relationships Corn |
| Note | A thesis submitted in partial fulfilment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | A field experiment was established, to link the change in soil physical properties by agricultural machinery wheels and their effect on maize grain yield. Soil was compacted by wheel traffic applied uniformly to cover the entire surface of experimental plots immediately before sowing and after sowing, with number of passes varied between 0 to 5. Tyre inflation pressure was kept constant. Dry bulk density and penetration resistance were increased with the increase in number of wheel passes and reverse was the case with porosity. Maize yield was affected highly with a slight decreased in porosity. Yield was 1.11 and 1.05 t/ha less for about 6% average decrease in soil porosity at 0 to 20 cm depth in before and after sowing treatment respectively. |
| Year | 1990 |
| Type | Thesis |
| School | School of Environment, Resources, and Development |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Gee-Clough, D. ;Nielsen, Jens Moller ; |
| Examination Committee(s) | Singh, Gajendra ;Gupta, Chandra P. ;Salokhe, Vilas M; |
| Scholarship Donor(s) | DMD (West Germany ) ; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1990 |