Starks, K.J. and Schumaker, G. and Eberhart, S.A. (1971) Soil fertility and damage by chilo zonellus to grain sorghum. Journal of Economic Entomology, 64 (3). pp. 740-743.
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Abstract
Two field trials were done in Uganda in 1968 to study the influence of soil fertility (levels of nitrogen and phosphorous fertilizer) on the damage caused by Chilo zonellus (Swinhoe) to grain sorghum by comparing treated (endosulfan) and borer-infested plots. The number of sorghum heads and the plant height increased with increasing amounts of fertilizer, but borers decreased both of these measurements. Also, phosphorous fertilizer tended to shorten the flowering period, but nitrogen fertilizer and borers extended it. Stand and number of stalks were not influenced by borers, perhaps because the infestation came late in the season, but there were about 3 times as many seedless heads in infested plots as in treated plots. More borers per plot were found when phosphorous fertilizer was used. Both fertilizers contributed to increased yield of grain, hut borers prevented a maximum response to soil fertility
| Item Type: | Article |
|---|---|
| Author Affiliation: | Research Entomologist |
| Subjects: | Plant Protection |
| Divisions: | Sorghum |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 04 Jul 2012 08:49 |
| Last Modified: | 04 Jul 2012 08:50 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/6544 |
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