Response of rice to nitrogen and phosphorus applied to the dominant soil type at the Dakawa irrigation scheme, Morogoro Tanzania
| dc.contributor.author | Mbaga, Halima Rashid | |
| dc.date.accessioned | 2017-02-06T13:42:04Z | |
| dc.date.available | 2017-02-06T13:42:04Z | |
| dc.date.issued | 2015 | |
| dc.description | MSc Thesis | en_US |
| dc.description.abstract | A study was conducted to classify and establish the fertility status of the soil at the Dakawa Irrigation Scheme (DIS) and subsequent to this, a screen-house pot experimentwas conducted to assess the response of rice (variety TXD 306) to nitrogen and phosphorus applied to the dominant soil type at the DIS. According to the Soil Taxonomy and the World Reference Base for Soil Resources, the soil of the study area classified as Inceptisol and Cambisol, respectively. Based on physical, chemical and biological properties of composite soil sample, the soil hadlow total N, low OC, organic matter and exchangeable Ca and Mg,and hence rated as marginally to moderately suitable for rice production. For the response of rice (variety TXD 306)to N and P, rates adopted were0, 50, 100, 150, 200 kgNha -1 and 0, 40, 80, 120, 160 kgPha -1 , respectively. The sources of N and P used were(NH 4 ) 2 SO 4 ) and (Ca(H 2 PO 4 ) 2 ), respectively applied in 5 2 factorial in CRBD. The number of tillers increased significantly (P < 0.05) with N and P levels from P 0 N 0 kgha -1 to P 80 N 200 kgha -1 . Biomass weight (g) increased significantly (P < 0.05) from 10.99 g pot -1 to 93.04 g pot -1 at P 0 N 0 kgha -1 and P 160 N 200 kgha -1 , respectively. Grain yield(g) increased significantly (P <0.05) from 2.24 g pot -1 to 33.06 g pot -1 for absolute control and P 160 N 200 kgha -1 , respectively. Therefore, for optimum grain yield of TXD 306 for the DIS Cambisol,80 kgPha -1 should be applied as basal and N in two splits i.e. 100 kgNha -1 close to tillering and 100 kgNha -1 at panicle initiation.ForappropriateN and P recommendations,further studies should be conducted to take onboard the intergrated soil fertility management in rice cultivation based on soil types to allow extrapolation of the results to other similar soils. | en_US |
| dc.description.sponsorship | Allience for Green Revolution in Africa (AGRA) | en_US |
| dc.identifier.uri | https://www.suaire.sua.ac.tz/handle/123456789/1210 | |
| dc.language.iso | en | en_US |
| dc.publisher | Sokoine University of Agriculture | en_US |
| dc.subject | Soil fertility | en_US |
| dc.subject | irrigation scheme | en_US |
| dc.subject | soil taxonomy | en_US |
| dc.subject | soil resources | en_US |
| dc.subject | soil type | en_US |
| dc.subject | Dakawa | en_US |
| dc.subject | Morogoro | en_US |
| dc.subject | rice production | en_US |
| dc.title | Response of rice to nitrogen and phosphorus applied to the dominant soil type at the Dakawa irrigation scheme, Morogoro Tanzania | en_US |
| dc.type | Thesis | en_US |