EFFECT OF CUTTING NUMBERS AND STUBBLE HEIGHT 0N FRESH, DRY FORAGE YIELD , QUALITY AND SEED YIELD OF COWPEA | ||||
| Journal of Plant Production | ||||
| Article 1, Volume 31, Issue 5, May 2006, Page 2593-2600 PDF (1.41 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpp.2006.235965 | ||||
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| Author | ||||
| Rafea I. A. El-Zanaty, | ||||
| Agron. Dept, Fac. Agric.. Cairo Univ. | ||||
| Abstract | ||||
| This experiment was carried out at the Agricultural Experiment and Research Center of Cairo University, Giza. Egypt in 2001 and 2002 seasons. The aim of this investigation was to determine the suitable number of cuttings and stubble height of sewpea to get the highest and best forage and seed yield of cowpea. Four cutting treatments were: one cut at seed harvesting, two cuts, three cuts and four cuts. Three stubble heights were 10, 20 and 30 cm. Taking three cuts significantly surpassed other cutting number treatments in seasonal fresh fomge yield in the first season by 34.5, 19.8 and 22.3 “lo and in the second season by 23.5. 2.4 and 2.4 % for one cut at seed harvesting, two outs and tour cuts, respectively. Leaving 30 cm as a stubble height significantly surpassed other stubble heights in seasonal fresh and dry forage yields of cowpea in the first season. This superiority of seasonal fresh forage yield was 21.5 and 14.4 % in 2001 and the superiority of seasonal dry forage of cowpea was 18.8 and 12.5 ”/c. for 10 and 20 cm. in the respective Order. Taking three cuts with stubble height at 30 cm significantly gave the highest seasonal fresh and dry yields in the first season. Whereas. in the second season. taking four cuts with the same stubble height (30 cm) significantly recorded the highest seasonal fresh and dry yields. Taking three cuts gave the highest seasonal protein yield in the first season. whereas. in the second season taking four cuts significantly gave the highest seasonal protein yield. increasing stubble height from 10 to 30 cm increased seasonal protein yield in the first season, but in the second season this increase in seasonal protein yield stopped at 20 cm. The highest pod yield was significantly obtained by taking one cut at seed harvesting in both seaSons. increasing stubble height from 10 to 30 cm gradually increased pod yield with insignificant differences in both seasons. Taking one cut at seed harvesting surpassed the other cutting numbers in seed yield in both seasons. This superiority of seed yield was 64.9. 21.3 and 44.3 % in 2001 and 61.8. 92.7 and 92.3 % in 2002 for two cuts. three cuts and four cuts in the respective order. increasing stubble height from 10 to 30 cm gradually increased seed yield without significant differences in both seasons. | ||||
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