{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,18]],"date-time":"2026-01-18T02:46:44Z","timestamp":1768704404357,"version":"3.49.0"},"reference-count":35,"publisher":"Bentham Science Publishers Ltd.","issue":"1","license":[{"start":{"date-parts":[[2020,4,20]],"date-time":"2020-04-20T00:00:00Z","timestamp":1587340800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"content-domain":{"domain":["openagriculturejournal.com","benthamopen.com"],"crossmark-restriction":true},"short-container-title":["TOASJ"],"published-print":{"date-parts":[[2020,4,20]]},"abstract":"\n Background:<\/jats:title>\n Since N fertilizer applied to maize (Zea mays<\/jats:italic> L.) is prone to loss by leaching, it is important to derive an application time during the phenology of maize when the fertilizer is most efficiently and effectively used by the crop with minimal losses.<\/jats:p>\n <\/jats:sec>\n \n Objective:<\/jats:title>\n Hence, experiments were carried out in 2014 at two locations in Osogbo southwest Nigeria to determine the effects of split application of N fertilizer on soil chemical properties, maize performance, and profitability.<\/jats:p>\n <\/jats:sec>\n \n Methods:<\/jats:title>\n The treatments were: (i) control, (ii) 120 kg N ha-1<\/jats:sup> Applied at Planting (AP), (iii) two split applications (SA) of 120 kg N ha-1<\/jats:sup> {90 kg N ha-1<\/jats:sup> applied AP + 30kg N ha-1<\/jats:sup> at thirty Days After Planting (DAP) [90 + 30]}, and (iv) three SA of 120 kg N ha-1<\/jats:sup> {60 kg N ha-1<\/jats:sup> applied AP + 30 kg N ha-1<\/jats:sup> thirty DAP + 30 kg N ha-1<\/jats:sup> at tasselling[60+30+30]}. The four treatments were arranged in a Randomized Complete Block Design with three replicates.<\/jats:p>\n <\/jats:sec>\n \n Results:<\/jats:title>\n Results indicate that at both sites, SA three times (60+30+30) has the most improved soil chemical properties, growth and yield of maize relative to other methods. The yield parameters increased in the order: control < 120 kg N ha-1<\/jats:sup> applied once < 90+30 < 60+30+30. Using the mean of both sites, 60+30+30 increased yield of maize by 15.3%, 37.1% and 138.2%, respectively compared with 90+30, 120 kg N ha-1<\/jats:sup> applied once and the control. Optimum returns were recorded by 60+30+30 with net return of \u20a6 227,600 and a benefit cost ratio of 3.67:1 while the application of 120 kg N ha-1<\/jats:sup> applied once has a return of \u20a6 157,200 with a benefit ratio of 2.9. These results show that farmers would benefit by making more profit by adopting the method of SA of N fertilizer three times (60+30+30).<\/jats:p>\n <\/jats:sec>\n \n Conclusion:<\/jats:title>\n Therefore, for improved soil chemical properties, growth, yield and profitability of maize, N fertilizer application should be structured in accordance with this pattern of uptake to avoid losses by leaching and therefore ensure that N level in the soil is high at the critical stage of N demand.<\/jats:p>\n <\/jats:sec>","DOI":"10.2174\/1874331502014010036","type":"journal-article","created":{"date-parts":[[2020,4,21]],"date-time":"2020-04-21T02:02:01Z","timestamp":1587434521000},"page":"36-42","update-policy":"https:\/\/doi.org\/10.2174\/crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["Effects of Split Application of Urea Fertilizer on Soil Chemical Properties, Maize Performance and Profitability in Southwest Nigeria"],"prefix":"10.2174","volume":"14","author":[{"given":"Oluwaseyi I.","family":"Ogunboye","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aruna O.","family":"Adekiya","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Babatunde","family":"S. 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Biol."},{"key":"ref2","unstructured":"Nweke F. \n New Challenges in the Cassava Transformation in Nigeria and Ghana. \n EPTD Discussion Paper No 118 Environment and Production Technology Division \n \n \n 2004."},{"key":"ref3","first-page":"80","volume":"9","author":"Jat M.L.","year":"2013","unstructured":"Jat ML, Satyanarayana T, Manundar K, et al. \n Fertilizer best management practices for maize systems. \n Indian J Fert \n 2013; \n 9\n (4)\n : 80-94.","journal-title":"Indian J. Fert."},{"key":"ref4","doi-asserted-by":"publisher","first-page":"1181","DOI":"10.1093\/jxb\/ers342","volume":"64","author":"Shen J.","year":"2013","unstructured":"Shen J, Li C, Mi G, et al. \n Maximizing root\/rhizosphere efficiency to improve crop productivity and nutrient use efficiency in intensive agriculture of China. \n J Exp Bot \n 2013; \n 64\n (5)\n : 1181-92.","journal-title":"J. Exp. Bot."},{"key":"ref5","unstructured":"Agbede OO. \n Understanding soil and plant nutrition \n \n \n 2009; \n 49."},{"key":"ref6","unstructured":"FFD Fertilizer use and management practices for crop production in Nigeria 4th Edition. \n \n \n 2011; \n 1-300."},{"key":"ref7","doi-asserted-by":"publisher","first-page":"1119","DOI":"10.2134\/agronj2001.9351119x","volume":"93","author":"Torbert H.A.","year":"2001","unstructured":"Torbert HA, Potter KN, Morrison JE. \n Tillage system, fertilizer nitrogen rate and timing effect on corn yields in the Texas Black land prairie. \n Agron J \n 2001; \n 93\n : 1119-24.","journal-title":"Agron. J."},{"key":"ref8","unstructured":"USDA. \n Soil taxonomy 2nd ed. \n \n \n \n 1999; \n 869."},{"key":"ref9","doi-asserted-by":"crossref","unstructured":"Gee GW, Or D. \n Particle-size analysis.\n Methods of Soil Analysis Part 4 Physical Methods Soil Science Society of America Book Series No 5 \n \n \n 2002; \n 255-93.","DOI":"10.2136\/sssabookser5.4.c12"},{"key":"ref10","doi-asserted-by":"crossref","unstructured":"Bremner JM. \n Nitrogen-total In: Sparks DL, Ed. \n \n Methods of soil analysis part 3 chemical methods 2nd ed. \n \n ASA and SSSA, Madison (WI), . \n 1996; \n 1085-121.","DOI":"10.2136\/sssabookser5.3.c37"},{"key":"ref11","unstructured":"Frank K, Beegle D, Denning J. \n Phosphorus.\n Recommended chemical soil test procedures for the North central region, North central regional research publication no 221 (revised) \n \n \n \n 1998; \n 21-6."},{"key":"ref12","unstructured":"AOAC. \n Official methods of analysis of the association of official analytical chemists aoac international, 2005 18th ed. \n \n Horwitz W, Latimer GW, Eds. \n \n \n 2006."},{"key":"ref13","doi-asserted-by":"publisher","unstructured":"Nelson DW, Sommers LE. \n Total carbon, organic carbon and organic matter.\n \n Methods of Soil Analysis Part 3 2nd ed. \n \n ASA and SSSA, Madison (WI), . \n 1996; \n 961-1010.","DOI":"10.2136\/sssabookser5.3.c34"},{"key":"ref14","doi-asserted-by":"publisher","first-page":"334","DOI":"10.2134\/agronj1986.00021962007800020024x","volume":"78","author":"Dwyer L.M.","year":"1986","unstructured":"Dwyer LM, Stewart DW. \n Leaf area development in field-grown maize. \n Agron J \n 1986; \n 78\n : 334-43.","journal-title":"Agron. J."},{"key":"ref15","unstructured":"Akinrinde EA, Obigbesan GO. \n Evaluation of the fertility status of selected soils for crop production in five ecological zones of Nigeria.\n Proceedings of the 26th Annual Conference of the Soil Science Society of Nigeria \n 279-88.\n \n \n 30 Oct\u20133 Nov, 2000."},{"key":"ref16","doi-asserted-by":"publisher","first-page":"113","DOI":"10.1007\/s12892-019-0021-0","volume":"22","author":"Adekiya AO","year":"2019","unstructured":"Adekiya AO, Agbede TM, Aboyeji CM, et al. \n Soil properties, okra performance and nutrient compositions as affected by tillage and maize cob ash \n J Crop Sci Biotech \n 2019; \n 22\n (2): 113-22.","journal-title":"J. Crop Sci. Biotech"},{"key":"ref17","first-page":"315","volume":"83","author":"Agbede T.M.","year":"2018","unstructured":"Agbede TM, Adekiya AO. \n The effect of tillage on soil physical and chemical properties and yield of ginger. \n ACS Agric Conspec Sci \n 2018; \n 83\n (4)\n : 315-20.","journal-title":"ACS Agric. Conspec. Sci."},{"key":"ref18","doi-asserted-by":"publisher","first-page":"67","DOI":"10.2478\/johr-2018-0008","volume":"26","author":"Adekiya A.O.","year":"2018","unstructured":"Adekiya AO, Aboyeji CM, Dunsin O, Adebiyi OV, Oyinlola OT. \n Effect of urea fertilizer and maize cob ash on soil chemical properties, growth, yield, and mineral composition of okra, Abelmoschus esculentus (L) Moench. \n J Hortic Res \n 2018; \n 26\n (1)\n : 67-76.","journal-title":"J. Hortic. Res."},{"key":"ref19","first-page":"88","volume":"3","author":"Ewulo B.S.","year":"2009","unstructured":"Ewulo BS, Babadele OO, Ojeniyi SO. \n Sawdust ash and urea effect on soil and plant nutrient con-tents and yield of tomato. \n American-Eurasian J Sustain Agricul \n 2009; \n 3\n (1)\n : 88-92.","journal-title":"American-Eurasian J Sustain. Agricul."},{"key":"ref20","unstructured":"Perry WP. \n Corn as a livestock feed.\n Corn and corn improvement 3rd ed. \n \n \n \n \n 1988; \n 941-63."},{"key":"ref21","doi-asserted-by":"publisher","first-page":"97","DOI":"10.1016\/S0065-2113(05)88004-6","volume":"88","author":"Fageria N.K.","year":"2005","unstructured":"Fageria NK, Baligar VC. \n Enhancing nitrogen use efficiency in crop plant. \n Adv Agron \n 2005; \n 88\n : 97-185.","journal-title":"Adv. Agron."},{"key":"ref22","doi-asserted-by":"publisher","first-page":"292","DOI":"10.1016\/j.still.2009.04.003","volume":"105","author":"Yang J-L.","year":"2009","unstructured":"Yang J-L, Zhang G-L, Shi X-Z, Wang H-J, Cao Z-H, Ritsema CJ. \n Dynamic changes of nitrogen and phosphorus losses in ephemeral runoff processes by typical storm events in Sichuan Basin, Southwest China. \n Soil Tillage Res \n 2009; \n 105\n : 292-9.","journal-title":"Soil Tillage Res."},{"key":"ref23","doi-asserted-by":"publisher","first-page":"251","DOI":"10.3923\/ja.2006.251.256","volume":"5","author":"Jamal Z.","year":"2006","unstructured":"Jamal Z, Hamayun M, Ahmad N, Chaudhary MF. \n Effects of soil and foliar application of different concentrations of NPK and foliar application of (NH4)2 SO4 on different yield parameters in wheat. \n J Agron \n 2006; \n 5\n (2)\n : 251-6.","journal-title":"J. Agron."},{"key":"ref24","first-page":"389","volume":"12","author":"Haile D.","year":"2012","unstructured":"Haile D, Nigussie D, Ayana A. \n Nitrogen use efficiency of bread wheat: effects of nitrogen rate and time of application. \n J Soil Sci Plant Nutr \n 2012; \n 12\n (3)\n : 389-409.","journal-title":"J. Soil Sci. Plant Nutr."},{"key":"ref25","unstructured":"Darby H, Lauer J. \n Plant Physiology \u2013 critical stages in life of a corn plant \n Field Corn Tech Rep \n http:\/\/www.mn.nrcs.USDA.gov\/ tecnical\/ ECS\/pest\/planting\n 2004."},{"key":"ref26","unstructured":"Nielsen RB. \n Root development in young corn \n \n 2013."},{"key":"ref27","doi-asserted-by":"publisher","first-page":"1545280","DOI":"10.1155\/2017\/1545280","volume":"2017","author":"Abebe Z.","year":"2017","unstructured":"Abebe Z, Feyisa H. \n Effects of nitrogen rates and time of application on yield of maize: rainfall variability influenced time of N application. \n Int J Agron \n 2017; \n 2017\n : 1545280.","journal-title":"Int. J. Agron."},{"key":"ref28","first-page":"341","volume":"24","author":"Gehl R.J.","year":"2005","unstructured":"Gehl RJ, Schmidt JP, Maddux LD, Gordon WB. \n Corn yield response to nitrogen rate grown under Bursa conditions. \n Turk J Agric For \n 2005; \n 24\n : 341-7.","journal-title":"Turk. J. Agric. For."},{"key":"ref29","unstructured":"Diekow J, Ceretta CA, Pavinato PE. \n \nPossible to anticipate the nitrogen dubbing of corn in the no-tillage system? \nSouth-brazilian soil science meeting 2 \n\n 1998; \n 163-6."},{"key":"ref30","first-page":"372","volume":"20","author":"Mariga I.K.","year":"2000","unstructured":"Mariga IK, Jonga M, Chivinge OA. \n The effect of timing of application of basal and topdressing fertilizers on maize yield at two rates of basal fertilizer. \n Crop Research Hissar \n 2000; \n 20\n : 372-80.","journal-title":"Crop Research Hissar"},{"key":"ref31","unstructured":"Hammons JL. \n Nitrogen and phosphorus fertilization of corn \n \n 2009; \n 424-027."},{"key":"ref32","first-page":"1","volume":"16","author":"Roy R.N.","year":"2006","unstructured":"Roy RN, Finck A, Blair GJ, Tandon HLS. \n Plant nutrition for food security. A guide for integrated nutrient management. \n FAO Fertilizer and Plant Nutrition Bulletin \n 2006; \n 16\n : 1-347.","journal-title":"FAO Fertilizer and Plant Nutrition Bulletin"},{"key":"ref33","doi-asserted-by":"publisher","first-page":"92","DOI":"10.2134\/agronj2000.92192x","volume":"92","author":"Andrade F.H.","year":"2000","unstructured":"Andrade FH, Ortegiu ME, Vega C. \n Intercepted radiation at flowering and kernal number in maize. \n Agron J \n 2000; \n 92\n : 92-7.","journal-title":"Agron. J."},{"key":"ref34","doi-asserted-by":"publisher","first-page":"111","DOI":"10.1007\/s11104-004-4211-7","volume":"272","author":"Paponov I.","year":"2005","unstructured":"Paponov I, Sambo P, Erley G, Presterl T, Geiger H, Engels C. \n Grain yield and kernel weight of two maize genotypes differing in nitrogen use efficiency at various levels of nitrogen and carbohydrate availability during flowering and grain filling. \n Plant Soil \n 2005; \n 272\n : 111-23.","journal-title":"Plant Soil"},{"key":"ref35","unstructured":"Bhattarai EM, Shrestha SP, Panta BB. \n Soil fertility management in maize and maize based cropping system in the western hills of Nepal. \n Proceedings of the 24th National Summer Workshop on Maize Research and Production in Nepal \n \n Organized by NARC, NMRP\n \n \n , June 28-30, 2004, . \n Kathmandu Nepal, \n 2004; \n 198-206."}],"container-title":["The Open Agriculture Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/openagriculturejournal.com\/contents\/volumes\/V14\/TOASJ-14-36\/TOASJ-14-36.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/openagriculturejournal.com\/contents\/volumes\/V14\/TOASJ-14-36\/TOASJ-14-36.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/openagriculturejournal.com\/contents\/volumes\/V14\/TOASJ-14-36\/TOASJ-14-36.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,4,21]],"date-time":"2020-04-21T02:02:10Z","timestamp":1587434530000},"score":1,"resource":{"primary":{"URL":"https:\/\/openagriculturejournal.com\/VOLUME\/14\/PAGE\/36\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,4,20]]},"references-count":35,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2020,4,20]]}},"alternative-id":["TOASJ-14-36"],"URL":"https:\/\/doi.org\/10.2174\/1874331502014010036","relation":{},"ISSN":["1874-3315"],"issn-type":[{"value":"1874-3315","type":"print"}],"subject":[],"published":{"date-parts":[[2020,4,20]]},"assertion":[{"value":"Peer Reviewed","order":0,"name":"review_status","label":"Review Status","group":{"name":"peer_review_details","label":"Peer Review Details"}},{"value":"Single blind","order":1,"name":"review_process","label":"Review Process","group":{"name":"peer_review_details","label":"Peer Review Details"}},{"value":"Checked with iThenticate","order":0,"name":"screening_status","label":"Screening Status","group":{"name":"plagiarism_screening","label":"Plagiarism Screening"}},{"value":"2019-12-18","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2020-03-05","order":1,"name":"revised","label":"Revised","group":{"name":"publication_history","label":"Publication History"}},{"value":"2020-03-15","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2020-04-20","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}