Effect of water and nitrogen application on growth of maize and yield estimation using photosynthetically active radiation | |
| Author | Kumar, Vipin |
| Call Number | AIT Thesis no.AE-17-03 |
| Subject(s) | Nitrogen in agriculture Radioactive tracers in agriculture Corn--Growth |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Agricultural Systems and Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | Maize (Zea mays L.) is mainly grown under rainfed conditions. frequent dry spells are often the cause of periodic drought stress that leads to decreased yields, especially when drought occurred during the critical growth stages. The objective of the study was to identify and assess variety and soil moisture conservation (SMC) practice effects on the growth and yield of maize under temporary drought stress. The study was carried out at greenhouse in Agricultural Systems and Engineering at Asian Institute of Technology (AIT) Thailand. In this experiment they had two major application (i) Water (ii) Nitrogen. The effect of Water and Nitrogen application in maize cropping systems is an essential factor for controlling production level especially in controlled environment at tropical regions. The present work was conducted to assess the interaction effect of different levels of Water (W) and Nitrogen (N) applied through known amount of water on maize production. Maize plants were subjected to four level of water 100% (W), 80%(W), 60%(W), and 40%(W) of the field capacity and five level of Nitrogen (N) (0) N kg/ha, 75 N kg/ha, 100 N kg/ha, 180 N kg/ha and 250 N kg/ha. Plants grown under 100% water and 100 N kg/ha supply resulted in the highest kernel yield and there were significant reductions in total yield and yield components when applying less amount of water. The uptake of N increased with the increase in the level of N applied up to the highest level but the reverse was true for N recovery. These result suggested that maize can grow under controlled environment in tropical region with acceptable yields while saving irrigation water and reducing nitrogen supply but it is essential to exploit the interaction effect between these two factors to maximize resource use efficiency. |
| Year | 2017 |
| 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 Systems and Engineering (ASE) |
| Chairperson(s) | Soni, Peeyush |
| Examination Committee(s) | Loc,Thai Nguyen;Sarawut Ninsawat |
| Scholarship Donor(s) | AIT Fellowship |
| Degree | Thesis (M. Eng.) - Asian Institute of Technology, 2017 |