Effect of lime, nitrogen and phosphorus on yield and chemical composition of mungbean | |
| Author | Jureerat Kongsombut |
| Call Number | AIT Thesis no.AE-80-24 |
| Subject(s) | Mung bean Liming of soils |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | A field experiment with Mungbean (Phaseolus aureus or Vigna radiata) involving three levels in all combinations of lime (0, 5, 12 t/ha), N(O, 30, 60 kg/ha) and P (O, 50, 100 kg/ha) were conducted on acid sulfate soil of Bangkok Plain during the dry season (January-April) of 1980. At maturity, the total dry matter yields (straw and seed), yield components, nutrient concentrations, nutrient uptake, protein content and amino acid composition in mungbean seed were determined, Phosphorus was found to be the most limiting nutrient for mungbean growth on this soil. Total dry matter yields significantly increased with increasing levels of P, Application of P also increased concentration and total uptake of P and N but decreased the concentration of Zn in both straw and seed. Application of nitrogen slightly increased total dry matter yields and concentrations of N, P, K and Na, especially in untimed treatments. Liming on this soil showed no significant effect on total dry matter yield of mungbeans. Liming with 5 t/ha tended to increase the concentration of N and P in straw and seed, but they slightly decreased when limed with 12 t/ha. Generally, liming increased the concentration of Ca in both straw and seed but decreased the concentration of Mg, Fe, Mn and Zn, The seed yield varied between 0.59 and 2.36 t/ha. Protein content in seed ranged from 21 to 26%. The lowest protein yield was 122 kg/ha and the highest 596 kg/ha. The concentration of amino acids expressed as g/16 g N, slightly decreased with increasing N concentrations or protein content. The sulfur containing amino acids (methionine + cystine) ranged from 2.02 to 2.36 g/16 g N. |
| Year | 1980 |
| 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) | Eppendorfer, W.H. |
| Examination Committee(s) | Olesen, Svend Elsnab ; Apichart Anukularmphai |
| Scholarship Donor(s) | Government of New Zealand |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1980 |