One‐Time Fertilizer Briquettes Application for Maize Production in Savanna Agroecologies of Ghana

Declining maize yields in the Guinea Savanna ecological zone of Ghana call for effective nutrient management strategies that increase maize productivity and profitability among smallholder farmers. Field trials were conducted during 2016 and 2017 in three locations in northern Ghana to evaluate the...

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Veröffentlicht in:Agronomy journal 2019-11, Vol.111 (6), p.3339-3350
Hauptverfasser: Adu‐Gyamfi, Raphael, Agyin‐Birikorang, Sampson, Tindjina, Ignatius, Ahmed, Shafik Mohammed, Twumasi, Ama Duoduaa, Avornyo, Vincent Kodjo, Singh, Upendra
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container_end_page 3350
container_issue 6
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container_title Agronomy journal
container_volume 111
creator Adu‐Gyamfi, Raphael
Agyin‐Birikorang, Sampson
Tindjina, Ignatius
Ahmed, Shafik Mohammed
Twumasi, Ama Duoduaa
Avornyo, Vincent Kodjo
Singh, Upendra
description Declining maize yields in the Guinea Savanna ecological zone of Ghana call for effective nutrient management strategies that increase maize productivity and profitability among smallholder farmers. Field trials were conducted during 2016 and 2017 in three locations in northern Ghana to evaluate the agronomic effectiveness of one‐time application of multi‐nutrient fertilizer briquettes for maize production. The treatments were: (i) farmer practice (FP); (ii) NPK fertilizer briquettes applied at the recommended N, P, and K rates (100%‐Briquette); (iii) 75%‐Briquette; (iv) modified farmer practice (MFP) with N, P, and K applied at the recommended rate (100%‐MFP); (v) 75%‐MFP; and (vi) control, with no fertilizer applied. The farmer practice involved surface broadcasting the granular N, P, and K fertilizer at the recommended rate. The MFP involved subsurface incorporation of the granular fertilizer into the soil. Across all three locations and in both years, maize grain yield resulting from the treatments followed this order: 100%‐Briquette > 100%‐MFP = 75%‐Briquette > 75%‐MFP > FP > control. Despite the greatest grain yields resulting from the 100%‐Briquette treatment, the greatest gross profit margin of 0.46 was obtained with the 75%‐Briquette treatment, followed by the 100%‐Briquette treatment (∼0.43), 100%‐MFP (∼0.39), 75%‐MFP (∼0.24), and FP (0.03). From the combined results, we conclude that the one‐time application of multi‐nutrient fertilizer briquettes could be an efficient fertilizer management strategy to increase maize yields and profitability for smallholder farmers in the Guinea Savanna zone. This presents a real strategy for improved productivity across diverse agroecologies for food security among smallholder farmers. Core Ideas One‐time application of multi‐nutrient fertilizer briquettes increased maize grain yields. High nutrient recovery efficiency of fertilizer briquettes resulted in a 25% reduction in application rates. Application of fertilizer briquettes resulted in the greatest gross profit margin of 46%. The traditional farmers’ practice of surface broadcast resulted in lowest gross profit margin of only 3%. Incorporation of fertilizers into the soil resulted in an increase of gross profit margin to 39%.
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Field trials were conducted during 2016 and 2017 in three locations in northern Ghana to evaluate the agronomic effectiveness of one‐time application of multi‐nutrient fertilizer briquettes for maize production. The treatments were: (i) farmer practice (FP); (ii) NPK fertilizer briquettes applied at the recommended N, P, and K rates (100%‐Briquette); (iii) 75%‐Briquette; (iv) modified farmer practice (MFP) with N, P, and K applied at the recommended rate (100%‐MFP); (v) 75%‐MFP; and (vi) control, with no fertilizer applied. The farmer practice involved surface broadcasting the granular N, P, and K fertilizer at the recommended rate. The MFP involved subsurface incorporation of the granular fertilizer into the soil. Across all three locations and in both years, maize grain yield resulting from the treatments followed this order: 100%‐Briquette &gt; 100%‐MFP = 75%‐Briquette &gt; 75%‐MFP &gt; FP &gt; control. Despite the greatest grain yields resulting from the 100%‐Briquette treatment, the greatest gross profit margin of 0.46 was obtained with the 75%‐Briquette treatment, followed by the 100%‐Briquette treatment (∼0.43), 100%‐MFP (∼0.39), 75%‐MFP (∼0.24), and FP (0.03). From the combined results, we conclude that the one‐time application of multi‐nutrient fertilizer briquettes could be an efficient fertilizer management strategy to increase maize yields and profitability for smallholder farmers in the Guinea Savanna zone. This presents a real strategy for improved productivity across diverse agroecologies for food security among smallholder farmers. Core Ideas One‐time application of multi‐nutrient fertilizer briquettes increased maize grain yields. High nutrient recovery efficiency of fertilizer briquettes resulted in a 25% reduction in application rates. Application of fertilizer briquettes resulted in the greatest gross profit margin of 46%. The traditional farmers’ practice of surface broadcast resulted in lowest gross profit margin of only 3%. Incorporation of fertilizers into the soil resulted in an increase of gross profit margin to 39%.</description><identifier>ISSN: 0002-1962</identifier><identifier>EISSN: 1435-0645</identifier><identifier>DOI: 10.2134/agronj2019.04.0292</identifier><language>eng</language><publisher>The American Society of Agronomy, Inc</publisher><ispartof>Agronomy journal, 2019-11, Vol.111 (6), p.3339-3350</ispartof><rights>2019 The author(s). 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Field trials were conducted during 2016 and 2017 in three locations in northern Ghana to evaluate the agronomic effectiveness of one‐time application of multi‐nutrient fertilizer briquettes for maize production. The treatments were: (i) farmer practice (FP); (ii) NPK fertilizer briquettes applied at the recommended N, P, and K rates (100%‐Briquette); (iii) 75%‐Briquette; (iv) modified farmer practice (MFP) with N, P, and K applied at the recommended rate (100%‐MFP); (v) 75%‐MFP; and (vi) control, with no fertilizer applied. The farmer practice involved surface broadcasting the granular N, P, and K fertilizer at the recommended rate. The MFP involved subsurface incorporation of the granular fertilizer into the soil. Across all three locations and in both years, maize grain yield resulting from the treatments followed this order: 100%‐Briquette &gt; 100%‐MFP = 75%‐Briquette &gt; 75%‐MFP &gt; FP &gt; control. Despite the greatest grain yields resulting from the 100%‐Briquette treatment, the greatest gross profit margin of 0.46 was obtained with the 75%‐Briquette treatment, followed by the 100%‐Briquette treatment (∼0.43), 100%‐MFP (∼0.39), 75%‐MFP (∼0.24), and FP (0.03). From the combined results, we conclude that the one‐time application of multi‐nutrient fertilizer briquettes could be an efficient fertilizer management strategy to increase maize yields and profitability for smallholder farmers in the Guinea Savanna zone. This presents a real strategy for improved productivity across diverse agroecologies for food security among smallholder farmers. Core Ideas One‐time application of multi‐nutrient fertilizer briquettes increased maize grain yields. High nutrient recovery efficiency of fertilizer briquettes resulted in a 25% reduction in application rates. Application of fertilizer briquettes resulted in the greatest gross profit margin of 46%. 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Field trials were conducted during 2016 and 2017 in three locations in northern Ghana to evaluate the agronomic effectiveness of one‐time application of multi‐nutrient fertilizer briquettes for maize production. The treatments were: (i) farmer practice (FP); (ii) NPK fertilizer briquettes applied at the recommended N, P, and K rates (100%‐Briquette); (iii) 75%‐Briquette; (iv) modified farmer practice (MFP) with N, P, and K applied at the recommended rate (100%‐MFP); (v) 75%‐MFP; and (vi) control, with no fertilizer applied. The farmer practice involved surface broadcasting the granular N, P, and K fertilizer at the recommended rate. The MFP involved subsurface incorporation of the granular fertilizer into the soil. Across all three locations and in both years, maize grain yield resulting from the treatments followed this order: 100%‐Briquette &gt; 100%‐MFP = 75%‐Briquette &gt; 75%‐MFP &gt; FP &gt; control. Despite the greatest grain yields resulting from the 100%‐Briquette treatment, the greatest gross profit margin of 0.46 was obtained with the 75%‐Briquette treatment, followed by the 100%‐Briquette treatment (∼0.43), 100%‐MFP (∼0.39), 75%‐MFP (∼0.24), and FP (0.03). From the combined results, we conclude that the one‐time application of multi‐nutrient fertilizer briquettes could be an efficient fertilizer management strategy to increase maize yields and profitability for smallholder farmers in the Guinea Savanna zone. This presents a real strategy for improved productivity across diverse agroecologies for food security among smallholder farmers. Core Ideas One‐time application of multi‐nutrient fertilizer briquettes increased maize grain yields. High nutrient recovery efficiency of fertilizer briquettes resulted in a 25% reduction in application rates. Application of fertilizer briquettes resulted in the greatest gross profit margin of 46%. The traditional farmers’ practice of surface broadcast resulted in lowest gross profit margin of only 3%. Incorporation of fertilizers into the soil resulted in an increase of gross profit margin to 39%.</abstract><pub>The American Society of Agronomy, Inc</pub><doi>10.2134/agronj2019.04.0292</doi><tpages>12</tpages></addata></record>
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