EFFECTS OF NITROGEN AND PHOSPHORUS ON THE GROWTH AND YIELD OF SWEET POTATO (Ipomoea batatas (L) Lam)

Simple item page
dc.contributor.authorDUTSIN-MA, IBRAHIM HABIBU
dc.date.accessioned2014-02-13T09:28:51Z
dc.date.available2014-02-13T09:28:51Z
dc.date.issued1985-12
dc.descriptionA thesis submitted to the Postgraduate School, Ahmadu Bello University in partial fulfillment of the requirements for the Degree of Master of Science in Agronomy DEPARTMENT OF AGRONOMY FACULTY OF AGRICULTURE AHMADU BELLO UNIVERSITY ZARIA, NIGERIAen_US
dc.description.abstractInvestigation was carried out at Samsru during the 1984 wet season to observe the effect of nitrogen and phosphorus on the growth and yield of sweet potato. The treatments comprised three levels each of nitrogen and phosphorus (0, 6O and 120kg N/ha; 0, 30 and 60kg P2O5/ha) and two varieties (TIS 9265 and TIS 2498). The investination revealed that application of nitrogen affected the growth, yield components and yield of sweet potato, while phosphorus application had no effect on the growth, yield components and yield, Application of 60kg N/ha significantly increased the total and marketable yields by 58.2 and 75.2 per cent, respectively over the control. However increasing the level to 120kg N/ha significantly reduced these yields by 23.8 and 33.8 per cent, respectively when compared with the 60kg N/ha level. The number of tubers was significantly reduced by the application of 120kg N/ha, while the application of 60 and 120kg N/ha significantly increased the tuber weight. But the difference between the two levels was not significant. It was also revealed that the two varieties respond similarly to nitrogen fertilization, although variety TIS 2498 was superior over TIS 9265 in terms of total and marketable yields, the number of tubers, marketable tubers as well as vegetative character of dry matter production.en_US
dc.identifier.urihttp://hdl.handle.net/123456789/1341
dc.language.isoenen_US
dc.subjectEFFECTS,en_US
dc.subjectNITROGEN,en_US
dc.subjectPHOSPHORUS,en_US
dc.subjectGROWTH,en_US
dc.subjectYIELD,en_US
dc.subjectSWEET POTATO,en_US
dc.subjectIpomoea batatas (L) Lamen_US
dc.titleEFFECTS OF NITROGEN AND PHOSPHORUS ON THE GROWTH AND YIELD OF SWEET POTATO (Ipomoea batatas (L) Lam)en_US
dc.typeThesisen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
EFFECTS OF NITROGEN AND PHOSPHORUS ON THE GROWTH AND YIELD OF SWEET POTATO Ipomoea batatas L Lam.pdf
Size:
5.35 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.58 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
AGRICULTURE