| Author | Yothin Konboon |
| Call Number | AIT Thesis no.AE-91-50 |
| Subject(s) | Rice--Thailand, Northeastern--Planting
|
| Note | A Thesis Submitted in Partial Fulfillment of the Requirement
for the Degree of Master of Science |
| Publisher | Asian Institute of Technology |
| Abstract | The study on the effect of seed rate, age and time of
incorporation of Aeschynomene afraspera on yield and growth
characteristics of rice was conducted on Roi-et soil series at
Ubon, Thailand under the rainfed condition . A. afraspera was
planted as a pre- rice green manure at three seed rates with two
ages and three times of incorporation. The rice variety KDML- 105
was transplanted after the green manure incorporation.
The results show that significant differences were observed
on some agronomic characteristics. With increased seed rate to 92
kilograms per hectare and delaying the age to 60 days after
seeding the higher nitrogen yield, plant density, plant height,
green manure biomass, straw yield, and rice grain yield were
obtained.
The transplanting of rice in 2 days after incorporation of
green manure had a negative effect on seedling vigor and seedling
survival than 14 and 21 days.
Basal phosphorous fertilizer application to green manure at
the rate of 50 kilograms of P2O5 per hectare significantly
affected biomass production, nitrogen yield, rice straw yield,
and rice grain yield. |
| Year | 1991 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| 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) | Upasena, S.H.; |
| Examination Committee(s) | Suthad Setboonsarng;Sumitra Poovarodom; |
| Scholarship Donor(s) | New Zealand; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1991 |