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TY - JOUR AU - Onyeonagu, C. C. AU - Asiegbu, J. E. PY - 2021/02/01 Y2 - 2026/08/25 TI - Effects of cutting frequency and fertilizer-N application on growth and production on guinea grass (Panicum maximum Jacq) sown pasture JF - Nigerian Journal of Animal Production JA - NJAP VL - 38 IS - 2 SE - Articles DO - 10.51791/njap.v38i2.2810 UR - https://mail.njap.org.ng/index.php/njap/article/view/2810 SP - 178 - 183 AB - <p><em><span style="font-weight: 400;">A </span></em><em><span style="font-weight: 400;">stud</span></em><span style="font-weight: 400;">y </span><span style="font-weight: 400;">was </span><em><span style="font-weight: 400;">conducted </span></em><em><span style="font-weight: 400;">to </span></em><em><span style="font-weight: 400;">determine </span></em><em><span style="font-weight: 400;">t</span></em><em><span style="font-weight: 400;">he </span></em><em><span style="font-weight: 400;">effects </span></em><em><span style="font-weight: 400;">of </span></em><em><span style="font-weight: 400;">cutting </span></em><em><span style="font-weight: 400;">frequency </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">fertilizer</span></em><em><span style="font-weight: 400;">-</span></em><em><span style="font-weight: 400;">N rates </span></em><em><span style="font-weight: 400;">on </span></em><em><span style="font-weight: 400;">growth </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">production </span></em><em><span style="font-weight: 400;">of </span></em><em><span style="font-weight: 400;">guinea </span></em><em><span style="font-weight: 400;">grass </span></em><em><span style="font-weight: 400;">(</span></em><em><span style="font-weight: 400;">Panicum </span></em><em><span style="font-weight: 400;">maximum </span></em><em><span style="font-weight: 400;">Jacq</span></em><em><span style="font-weight: 400;">)</span></em><em><span style="font-weight: 400;">. </span></em><em><span style="font-weight: 400;">T</span></em><em><span style="font-weight: 400;">he </span></em><em><span style="font-weight: 400;">experiment </span></em><em><span style="font-weight: 400;">was </span></em><em><span style="font-weight: 400;">conducted </span></em><em><span style="font-weight: 400;">in </span></em><em><span style="font-weight: 400;">Nsukka</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">Nigeria</span></em><em><span style="font-weight: 400;">. </span></em><em><span style="font-weight: 400;">Treatments </span></em><em><span style="font-weight: 400;">comprised </span></em><em><span style="font-weight: 400;">four </span></em><em><span style="font-weight: 400;">levels </span></em><em><span style="font-weight: 400;">of </span></em><em><span style="font-weight: 400;">fertilizer </span></em><em><span style="font-weight: 400;">N (</span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">15</span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">300 </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">450 </span></em><em><span style="font-weight: 400;">kg </span></em><em><span style="font-weight: 400;">N </span></em><em><span style="font-weight: 400;">ha </span></em><em><span style="font-weight: 400;">'</span></em><em><span style="font-weight: 400;">) </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">four </span></em><em><span style="font-weight: 400;">cutting </span></em><em><span style="font-weight: 400;">intervals </span></em><em><span style="font-weight: 400;">(</span></em><em><span style="font-weight: 400;">3</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">6</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">9 </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">1</span></em><span style="font-weight: 400;">2 </span><span style="font-weight: 400;">w</span><em><span style="font-weight: 400;">eekly </span></em><em><span style="font-weight: 400;">intervals</span></em><em><span style="font-weight: 400;">)</span></em><em><span style="font-weight: 400;">. </span></em><em><span style="font-weight: 400;">Plant </span></em><em><span style="font-weight: 400;">height</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">ti</span></em><em><span style="font-weight: 400;">ll</span></em><em><span style="font-weight: 400;">er </span></em><em><span style="font-weight: 400;">number </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">herbage </span></em><em><span style="font-weight: 400;">dry </span></em><em><span style="font-weight: 400;">matter </span></em><em><span style="font-weight: 400;">yields </span></em><em><span style="font-weight: 400;">were </span></em><em><span style="font-weight: 400;">significantly </span></em><em><span style="font-weight: 400;">increased </span></em><em><span style="font-weight: 400;">by </span></em><em><span style="font-weight: 400;">6</span></em><span style="font-weight: 400;">%</span><span style="font-weight: 400;">, </span><em><span style="font-weight: 400;">44</span></em><em><span style="font-weight: 400;">% </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">53</span></em><em><span style="font-weight: 400;">%</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">respectively</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">during </span></em><em><span style="font-weight: 400;">the </span></em><em><span style="font-weight: 400;">establishment </span></em><em><span style="font-weight: 400;">year </span></em><em><span style="font-weight: 400;">when </span></em><em><span style="font-weight: 400;">fertilizer</span></em><em><span style="font-weight: 400;">-</span></em><em><span style="font-weight: 400;">Nrate </span></em><span style="font-weight: 400;">w</span><em><span style="font-weight: 400;">as </span></em><em><span style="font-weight: 400;">increased </span></em><em><span style="font-weight: 400;">from </span></em><em><span style="font-weight: 400;">0 </span></em><em><span style="font-weight: 400;">to </span></em><em><span style="font-weight: 400;">450 </span></em><em><span style="font-weight: 400;">kg </span></em><em><span style="font-weight: 400;">N </span></em><em><span style="font-weight: 400;">ha</span></em><em><span style="font-weight: 400;">'</span></em><em><span style="font-weight: 400;">. </span></em><em><span style="font-weight: 400;">The </span></em><em><span style="font-weight: 400;">extent </span></em><em><span style="font-weight: 400;">of </span></em><span style="font-weight: 400;">wee</span><em><span style="font-weight: 400;">d </span></em><em><span style="font-weight: 400;">co</span></em><span style="font-weight: 400;">ver </span><span style="font-weight: 400;">was </span><em><span style="font-weight: 400;">significantly </span></em><em><span style="font-weight: 400;">(</span></em><em><span style="font-weight: 400;">P </span></em><em><span style="font-weight: 400;">&lt; </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">05</span></em><em><span style="font-weight: 400;">) </span></em><em><span style="font-weight: 400;">reduced </span></em><em><span style="font-weight: 400;">b</span></em><span style="font-weight: 400;">y </span><span style="font-weight: 400;">33</span><span style="font-weight: 400;">% </span><em><span style="font-weight: 400;">in </span></em><em><span style="font-weight: 400;">2000 </span></em><em><span style="font-weight: 400;">when </span></em><em><span style="font-weight: 400;">fertilizer</span></em><em><span style="font-weight: 400;">-</span></em><span style="font-weight: 400;">N </span><em><span style="font-weight: 400;">rat</span></em><span style="font-weight: 400;">e </span><span style="font-weight: 400;">was </span><em><span style="font-weight: 400;">increased </span></em><em><span style="font-weight: 400;">from </span></em><em><span style="font-weight: 400;">0 </span></em><span style="font-weight: 400;">t</span><em><span style="font-weight: 400;">o </span></em><em><span style="font-weight: 400;">450 </span></em><em><span style="font-weight: 400;">kg </span></em><em><span style="font-weight: 400;">N </span></em><em><span style="font-weight: 400;">h</span></em><em><span style="font-weight: 400;">a</span></em><em><span style="font-weight: 400;">'</span></em><em><span style="font-weight: 400;">. </span></em><em><span style="font-weight: 400;">Increase </span></em><em><span style="font-weight: 400;">in </span></em><em><span style="font-weight: 400;">interval </span></em><em><span style="font-weight: 400;">bet</span></em><span style="font-weight: 400;">w</span><em><span style="font-weight: 400;">een </span></em><em><span style="font-weight: 400;">cu</span></em><em><span style="font-weight: 400;">ts </span></em><em><span style="font-weight: 400;">f</span></em><em><span style="font-weight: 400;">rom </span></em><em><span style="font-weight: 400;">3 </span></em><em><span style="font-weight: 400;">to </span></em><em><span style="font-weight: 400;">1</span></em><span style="font-weight: 400;">2 </span><span style="font-weight: 400;">weeks </span><em><span style="font-weight: 400;">significantly </span></em><em><span style="font-weight: 400;">(</span></em><em><span style="font-weight: 400;">P </span></em><em><span style="font-weight: 400;">&lt; </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">05</span></em><em><span style="font-weight: 400;">) </span></em><em><span style="font-weight: 400;">increased </span></em><em><span style="font-weight: 400;">plant </span></em><em><span style="font-weight: 400;">height </span></em><em><span style="font-weight: 400;">in </span></em><em><span style="font-weight: 400;">all </span></em><em><span style="font-weight: 400;">the </span></em><em><span style="font-weight: 400;">years</span></em><em><span style="font-weight: 400;">. </span></em><em><span style="font-weight: 400;">Plant </span></em><em><span style="font-weight: 400;">height </span></em><em><span style="font-weight: 400;">was </span></em><em><span style="font-weight: 400;">increased </span></em><em><span style="font-weight: 400;">(</span></em><em><span style="font-weight: 400;">P </span></em><em><span style="font-weight: 400;">&lt; </span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">05</span></em><em><span style="font-weight: 400;">) </span></em><em><span style="font-weight: 400;">by </span></em><span style="font-weight: 400;">28</span><span style="font-weight: 400;">% </span><span style="font-weight: 400;">3</span><em><span style="font-weight: 400;">4</span></em><em><span style="font-weight: 400;">% </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">28</span></em><em><span style="font-weight: 400;">% </span></em><em><span style="font-weight: 400;">in </span></em><em><span style="font-weight: 400;">200</span></em><em><span style="font-weight: 400;">1</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">200</span></em><em><span style="font-weight: 400;">2 and </span></em><em><span style="font-weight: 400;">2004</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">respectively</span></em><em><span style="font-weight: 400;">, </span></em><em><span style="font-weight: 400;">when </span></em><em><span style="font-weight: 400;">fertilizer </span></em><em><span style="font-weight: 400;">N </span></em><span style="font-weight: 400;">w</span><em><span style="font-weight: 400;">as </span></em><em><span style="font-weight: 400;">increased </span></em><em><span style="font-weight: 400;">from </span></em><em><span style="font-weight: 400;">0 </span></em><em><span style="font-weight: 400;">to </span></em><em><span style="font-weight: 400;">450 </span></em><em><span style="font-weight: 400;">kg </span></em><em><span style="font-weight: 400;">ha</span></em><em><span style="font-weight: 400;">'</span></em><em><span style="font-weight: 400;">. </span></em><em><span style="font-weight: 400;">Application </span></em><em><span style="font-weight: 400;">of </span></em><em><span style="font-weight: 400;">Nat </span></em><em><span style="font-weight: 400;">450 </span></em><em><span style="font-weight: 400;">kg </span></em><em><span style="font-weight: 400;">ha </span></em><em><span style="font-weight: 400;">produced </span></em><em><span style="font-weight: 400;">similar </span></em><em><span style="font-weight: 400;">plant </span></em><em><span style="font-weight: 400;">heights </span></em><em><span style="font-weight: 400;">in </span></em><em><span style="font-weight: 400;">2001 </span></em><em><span style="font-weight: 400;">with </span></em><em><span style="font-weight: 400;">the </span></em><em><span style="font-weight: 400;">300 </span></em><em><span style="font-weight: 400;">kg </span></em><em><span style="font-weight: 400;">N </span></em><em><span style="font-weight: 400;">ha</span></em><em><span style="font-weight: 400;">' </span></em><em><span style="font-weight: 400;">but </span></em><em><span style="font-weight: 400;">differed </span></em><em><span style="font-weight: 400;">from </span></em><em><span style="font-weight: 400;">the </span></em><em><span style="font-weight: 400;">150 </span></em><em><span style="font-weight: 400;">kg </span></em><em><span style="font-weight: 400;">N </span></em><em><span style="font-weight: 400;">ha</span></em><em><span style="font-weight: 400;">'</span></em><em><span style="font-weight: 400;">. </span></em><em><span style="font-weight: 400;">Increase </span></em><em><span style="font-weight: 400;">in </span></em><em><span style="font-weight: 400;">nitrogen </span></em><em><span style="font-weight: 400;">application </span></em><em><span style="font-weight: 400;">progressively </span></em><em><span style="font-weight: 400;">increased </span></em><em><span style="font-weight: 400;">(</span></em><em><span style="font-weight: 400;">P&lt;</span></em><em><span style="font-weight: 400;">0</span></em><em><span style="font-weight: 400;">.</span></em><em><span style="font-weight: 400;">05</span></em><em><span style="font-weight: 400;">) </span></em><em><span style="font-weight: 400;">plant </span></em><em><span style="font-weight: 400;">height </span></em><em><span style="font-weight: 400;">in </span></em><em><span style="font-weight: 400;">2002 </span></em><em><span style="font-weight: 400;">and </span></em><em><span style="font-weight: 400;">2004</span></em><em><span style="font-weight: 400;">. </span></em></p><p><strong>Key </strong><strong>words</strong><span style="font-weight: 400;">: </span><span style="font-weight: 400;">, </span><span style="font-weight: 400;">, </span><span style="font-weight: 400;">,&nbsp;</span></p> ER -