Fertilizer Recommendation

Field experiment was conducted to study the impact of sulfur (S) and boron (B) on yield and yield component of broccoli. Sulfur was applied @ 0 (control), 20 and 40 kg ha-1 as elemental sulfur while B was applied at the rate 0, 1 and 1.5 kg ha-1 as borax along with a basal dose of N,P and K @ 120, 90 and 60 kg ha-1. All the fertilizers were applied at the time of sowing. The experimental design used was randomized complete block design (RCBD) with three replications. The data on plant height, number of leaves, flower diameter, head yield and biological mass were recorded along with S and B concentration in soil after crop harvesting. The result revealed that yield and yield parameter increased with increasing levels of S and B with higher head yield, flower diameter and plant height were observed when 40 kg ha-1 S and 1.5 kg ha-1 B were applied. It was further noted that head yield and head diameter were non-significant when averaged across the B treatment between 20 and 40 kg ha-1 applied S but significant from control. Similarly, when the yield parameters were average across the S treatment, there was a significant and linear increase with higher B level. Soil analysis showed that both B an S concentration in soil increased by increasing level of applied S and B. So the optimum level of S and B for broccoli was 40 and 1.5 kg ha-1 respectively for higher yield of broccoli.

The objective of this study was to investigate appropriate fertilization schemes to improve the production of maize and sorghum in the Sahel agroecological zone of Cameroon. The experiment was carried out in 2018 at IRAD (Institute of Agricultural Research for Development) Kismatari experimental field. The experimental setup was a complete randomized block design in four replicates and four treatments for each crop. For maize, treatments were: T1 (No input), T2 (100 kg NPK + 100 kg Urea.ha-1), T3 (150 kg NPK + 150 kg Urea.ha-1), and T4 (200 kg NPK + 200 kg Urea.ha-1). For sorghum, treatments were: T1 (No input), T2 (50 kg NPK + 50 kg Urea.ha-1), T3 (100 kg NPK + 100 kg Urea.ha-1), and T4 (150 kg NPK + 150 kg Urea.ha-1). All fertilizer treatments NPK and urea were applied to both crops respectively at 3 and 5 weeks after sowing. Nine weeks after sowing, the plant height was highest at T3, following by T2 and T4 for the two crops. The treatment T1 exhibited the lowest grain yield whil...

Revista Verde (Mossoró – RN – Brasil) v.5, n.5, (Número Especial) p. 74 - 80 outubro /dezembro de 2010 http://revista.gvaa.com.br ... USO DE ESCÓRIA DE SIDERURGIA COMO CORRETIVO DE ACIDEZ E DE DIFERENTES FONTES DE ADUBAÇÃO NO DESENVOLVIMENTO ...

Field experiment was conducted to study the impact of sulfur (S) and boron (B) on yield and yield component of broccoli. Sulfur was applied @ 0 (control), 20 and 40 kg ha-1 as elemental sulfur while B was applied at the rate 0, 1 and 1.5 kg ha-1 as borax along with a basal dose of N,P and K @ 120, 90 and 60 kg ha-1. All the fertilizers were applied at the time of sowing. The experimental design used was randomized complete block design (RCBD) with three replications. The data on plant height, number of leaves, flower diameter, head yield and biological mass were recorded along with S and B concentration in soil after crop harvesting. The result revealed that yield and yield parameter increased with increasing levels of S and B with higher head yield, flower diameter and plant height were observed when 40 kg ha-1 S and 1.5 kg ha-1 B were applied. It was further noted that head yield and head diameter were non-significant when averaged across the B treatment between 20 and 40 kg ha-1 applied S but significant from control. Similarly, when the yield parameters were average across the S treatment, there was a significant and linear increase with higher B level. Soil analysis showed that both B an S concentration in soil increased by increasing level of applied S and B. So the optimum level of S and B for broccoli was 40 and 1.5 kg ha-1 respectively for higher yield of broccoli.

The objective of this study was to investigate appropriate fertilization schemes to improve the production of maize and sorghum in the Sahel agroecological zone of Cameroon. The experiment was carried out in 2018 at IRAD (Institute of Agricultural Research for Development) Kismatari experimental field. The experimental setup was a complete randomized block design in four replicates and four treatments for each crop. For maize, treatments were: T1 (No input), T2 (100 kg NPK + 100 kg Urea.ha-1), T3 (150 kg NPK + 150 kg Urea.ha-1), and T4 (200 kg NPK + 200 kg Urea.ha-1). For sorghum, treatments were: T1 (No input), T2 (50 kg NPK + 50 kg Urea.ha-1), T3 (100 kg NPK + 100 kg Urea.ha-1), and T4 (150 kg NPK + 150 kg Urea.ha-1). All fertilizer treatments NPK and urea were applied to both crops respectively at 3 and 5 weeks after sowing. Nine weeks after sowing, the plant height was highest at T3, following by T2 and T4 for the two crops. The treatment T1 exhibited the lowest grain yield whil...

Aims: This study was conducted to enhance the tolerance of common beans to drought events occurring at the reproductive stage, from a soil improvement perspective. Study Design: Split plot completely randomized design was used. Place and Duration of Study: Study was conducted in a screen-house at the Legumes and Oil Seeds Division of CSIR-Crops Research Institute, Ghana, from September 2021 to January 2022. Methodology: Municipal Solid Waste Compost and inorganic fertilizer combinations were applied to common beans in a pot experiment. They included control, full rate compost (FRAC), full rate fertilizer (NPK 5:30:30 kg/ha) (FRG), FRG + half rate compost (HRAC) and FRG + FRAC. All soils were maintained at 80% field capacity (FC) from the start of the experiment. At flowering, two groups of plants were water stressed till 40 and 16% FC and returned to 80% FC till physiological maturity, while one group maintained 80% FC throughout study. Forty-five soil samples each and plant data we...

Ten farmers were randomly selected in the humid forest zone of Cameroon to form the main focus group of 50 people. A total of 178 farmers were individually interviewed. A Participatory Rural Appraisal (PRA) was conducted in fives villages in the Bimodal Humid forest zone (BHFZ) of Cameroon in 2013. The objectives of the study were to elucidate farmer's perceptions on maize cultivars and to identify farmer's constraints on their maize production system. Quantitative data

Aims: This study was conducted to enhance the tolerance of common beans to drought events occurring at the reproductive stage, from a soil improvement perspective. Study Design: Split plot completely randomized design was used. Place and Duration of Study: Study was conducted in a screen-house at the Legumes and Oil Seeds Division of CSIR-Crops Research Institute, Ghana, from September 2021 to January 2022. Methodology: Municipal Solid Waste Compost and inorganic fertilizer combinations were applied to common beans in a pot experiment. They included control, full rate compost (FRAC), full rate fertilizer (NPK 5:30:30 kg/ha) (FRG), FRG + half rate compost (HRAC) and FRG + FRAC. All soils were maintained at 80% field capacity (FC) from the start of the experiment. At flowering, two groups of plants were water stressed till 40 and 16% FC and returned to 80% FC till physiological maturity, while one group maintained 80% FC throughout study. Forty-five soil samples each and plant data we...

Aims: This study was conducted to enhance the tolerance of common beans to drought events occurring at the reproductive stage, from a soil improvement perspective. Study Design: Split plot completely randomized design was used. Place and Duration of Study: Study was conducted in a screen-house at the Legumes and Oil Seeds Division of CSIR-Crops Research Institute, Ghana, from September 2021 to January 2022. Methodology: Municipal Solid Waste Compost and inorganic fertilizer combinations were applied to common beans in a pot experiment. They included control, full rate compost (FRAC), full rate fertilizer (NPK 5:30:30 kg/ha) (FRG), FRG + half rate compost (HRAC) and FRG + FRAC. All soils were maintained at 80% field capacity (FC) from the start of the experiment. At flowering, two groups of plants were water stressed till 40 and 16% FC and returned to 80% FC till physiological maturity, while one group maintained 80% FC throughout study. Forty-five soil samples each and plant data we...

Field experiment was conducted to study the impact of sulfur (S) and boron (B) on yield and yield component of broccoli. Sulfur was applied @ 0 (control), 20 and 40 kg ha-1 as elemental sulfur while B was applied at the rate 0, 1 and 1.5 kg ha-1 as borax along with a basal dose of N,P and K @ 120, 90 and 60 kg ha-1. All the fertilizers were applied at the time of sowing. The experimental design used was randomized complete block design (RCBD) with three replications. The data on plant height, number of leaves, flower diameter, head yield and biological mass were recorded along with S and B concentration in soil after crop harvesting. The result revealed that yield and yield parameter increased with increasing levels of S and B with higher head yield, flower diameter and plant height were observed when 40 kg ha-1 S and 1.5 kg ha-1 B were applied. It was further noted that head yield and head diameter were non-significant when averaged across the B treatment between 20 and 40 kg ha-1 applied S but significant from control. Similarly, when the yield parameters were average across the S treatment, there was a significant and linear increase with higher B level. Soil analysis showed that both B an S concentration in soil increased by increasing level of applied S and B. So the optimum level of S and B for broccoli was 40 and 1.5 kg ha-1 respectively for higher yield of broccoli.

This study aims to improve the growth potential of carrot in the Northern Cameroon while limiting the use of chemical inputs. The experiment was conducted under field conditions at Maroua and Ngaoundere, respectively in the agro-ecological zone I and II, and during the two consecutive cropping seasons of 2019 and 2020. Results indicate that carrot root growth and production varied depending on fertilizer, agroecological zone and the year of experimentation. Globally, treated plant by the combination of 1 Kg of poultry litter with 10 g of vivianite powder (F1+P10) exhibited significantly (p<0.05) the highest growth (plant height, number of leaves per plant) and production parameters (root lenght, root diameter, root dry biomass, root yield). F1+P10 fertilizer increased the foliar production at 60% and 69%, compared to no treated plants in Ngaoundere and Maroua rspectively. This fertilizer increased the root yield at 2% and 41% compared to T+ in Ngaoundere and Maroua respectively i...

Aims: This study was conducted to enhance the tolerance of common beans to drought events occurring at the reproductive stage, from a soil improvement perspective. Study Design: Split plot completely randomized design was used. Place and Duration of Study: Study was conducted in a screen-house at the Legumes and Oil Seeds Division of CSIR-Crops Research Institute, Ghana, from September 2021 to January 2022. Methodology: Municipal Solid Waste Compost and inorganic fertilizer combinations were applied to common beans in a pot experiment. They included control, full rate compost (FRAC), full rate fertilizer (NPK 5:30:30 kg/ha) (FRG), FRG + half rate compost (HRAC) and FRG + FRAC. All soils were maintained at 80% field capacity (FC) from the start of the experiment. At flowering, two groups of plants were water stressed till 40 and 16% FC and returned to 80% FC till physiological maturity, while one group maintained 80% FC throughout study. Forty-five soil samples each and plant data we...

Soybean is one of the most important crops globally, despite significant numbers the crop in the Cerrado biome presents low natural fertility with a higher demand for fertilization. Seeking to improve the production of culture by reducing costs there is the possibility of using organic waste, which can be a very advantageous and interesting option when well used. The objective of this work was to evaluate the physiological, nutritional, and productive aspects of soybean crops grown with Original Research Article

This study aims to improve the growth potential of carrot in the Northern Cameroon while limiting the use of chemical inputs. The experiment was conducted under field conditions at Maroua and Ngaoundere, respectively in the agro-ecological zone I and II, and during the two consecutive cropping seasons of 2019 and 2020. Results indicate that carrot root growth and production varied depending on fertilizer, agroecological zone and the year of experimentation. Globally, treated plant by the combination of 1 Kg of poultry litter with 10 g of vivianite powder (F1+P10) exhibited significantly (p<0.05) the highest growth (plant height, number of leaves per plant) and production parameters (root lenght, root diameter, root dry biomass, root yield). F1+P10 fertilizer increased the foliar production at 60% and 69%, compared to no treated plants in Ngaoundere and Maroua rspectively. This fertilizer increased the root yield at 2% and 41% compared to T+ in Ngaoundere and Maroua respectively i...

Aims: The aim of this study was to evaluate the best crop succession strategy and nitrogen dose for irrigated watermelon cultivation in the cerrado of Roraima. Experimental Design: The experimental design was a randomized complete block design, arranged in a split-plot scheme, with four replications. Place and Duration of Study: Two experiments were conducted (2014/2015 and 2015/2016 growing seasons), with the ‘Crimsom Sweet’ watermelon cultivar, grown under different N doses in succession to cover crop species, at the experimental field “Água Boa”, belonging to Embrapa Roraima, located in the municipality of Boa Vista, state of Roraima, Brazil. Methodology: The three plots consisted of cultivating watermelon in succession to: maize intercropped with pigeon pea (Cajanus cajan), Brachiaria (Urochloa ruziziensis) and control with natural vegetation. The subplots consisted of four doses of nitrogen (0, 75, 150 and 225 kg ha-1 of N) applied in the watermelon culture. The following varia...

Field experiment was conducted to study the impact of sulfur (S) and boron (B) on yield and yield component of broccoli. Sulfur was applied @ 0 (control), 20 and 40 kg ha -1 as elemental sulfur while B was applied at the rate 0, 1 and 1.5 kg ha -1 as borax along with a basal dose of N,P and K @ 120, 90 and 60 kg ha -1 . All the fertilizers were applied at the time of sowing. The experimental design used was randomized complete block design (RCBD) with three replications. The data on plant height, number of leaves, flower diameter, head yield and biological mass were recorded along with S and B concentration in soil after crop harvesting. The result revealed that yield and yield parameter increased with increasing levels of S and B with higher head yield, flower diameter and plant height were observed when 40 kg ha -1 S and 1.5 kg ha -1 B were applied. It was further noted that head yield and head diameter were non-significant when averaged across the B treatment between 20 and 40 kg ha -1 applied S but significant from control. Similarly, when the yield parameters were average across the S treatment, there was a significant and linear increase with higher B level. Soil analysis showed that both B an S concentration in soil increased by increasing level of applied S and B. So the optimum level of S and B for broccoli was 40 and 1.5 kg ha -1 respectively for higher yield of broccoli.

Low fertility and organic matter contents in soil limit the nutrient bio-availability for crops, potentially leading to poor nutrition in the animals and human beings that consume those crops. This field study on maize production employed integration of organic and chemical fertilizers to determine their impact on plant enzymatic activities in relation to crop production, and nutrient dynamics in plants and soil. The treatments compared were: control (no application of N from any source); 100% N

A study was carried out in Kenya Cereal Enhancement Project site in Western region of Kenya to examine the soil fertility status in relation to the current blanket fertilizer recommendations and farmers’ practices across the four wards, namely: Motosiet, Keiyo, Cherangani and Kwanza. The baseline fertility status in different soil mapping units was assessed in terms of soil productivity index with a view of analyzing the levels of nutrients and yield gaps. Using the standard soil survey procedures, six soil mapping units were identified as UUr1, UUr2, UUr3, RUd, RUrb, and BU1.. The results showed that the highest productivity index was in unit BU1, followed by UUr1, UUr2, UUr3, and RUrb with values of 40.5, 29.4, 25.0, 16.0 and 8.9% respectively.  Keiyo Ward had the highest level of nitrogen, being 125.82, followed by Motosiet, Cherangani and Kwanza with values of 99.92, 97.12, and 81.12 kg/ha respectively. Phosphorous level was highest in Kwanza (136.41 kg/ha), followed by Cheranga...

In agricultural experimentation, the right size and shape of experimental units increase the precision of the experiment. This study determines the optimum size and shape of the experimental unit for field experimentation with cassava. For this, we carried out a uniformity test in Pacajús, Ceará, under dry conditions, with the cultivar 'Mastruço' planted at a spacing of 1.00 m x 0.60 m. The root yields were collected in 15 rows with 40 plants each, comprising 31 types of experimental units of 23 different pre-established sizes. The optimum size of the experimental unit was estimated by the Hatheway method, and the shape was determined by the relative information method. The Hatheway method indicated several optimum sizes of experimental units, many of which were applicable for evaluation experiments of cassava cultivars. The 15 x 1 rectangular experimental unit (15 rows with one plant and 9.00 m² of useful area) was considered the ideal shape for assessment of cassava produc...

The objective of this study was to investigate appropriate fertilization schemes to improve the production of maize and sorghum in the Sahel agroecological zone of Cameroon. The experiment was carried out in 2018 at IRAD (Institute of Agricultural Research for Development) Kismatari experimental field. The experimental setup was a complete randomized block design in four replicates and four treatments for each crop. For maize, treatments were: T1 (No input), T2 (100 kg NPK + 100 kg Urea.ha-1), T3 (150 kg NPK + 150 kg Urea.ha-1), and T4 (200 kg NPK + 200 kg Urea.ha-1). For sorghum, treatments were: T1 (No input), T2 (50 kg NPK + 50 kg Urea.ha-1), T3 (100 kg NPK + 100 kg Urea.ha-1), and T4 (150 kg NPK + 150 kg Urea.ha-1). All fertilizer treatments NPK and urea were applied to both crops respectively at 3 and 5 weeks after sowing. Nine weeks after sowing, the plant height was highest at T3, following by T2 and T4 for the two crops. The treatment Original Research Article Temegne et al....

Summary Declining soil fertility and low fertilizer use are the major abiotic factors limiting the maize production in Cameroon. Therefore, the design and introduction of appropriate fertilizer schemes, which would improve maize yields and provide incentives for smallholder farmers, are considered imperative. In 2018, a field experiment was conducted on the farm of the Institute of Agricultural Research for Development (IRAD) in Ekona, the south-west region of Cameroon, to investigate the profitability and impact of inorganic fertilizers on maize production. The experiment was laid out in a randomized complete block design with four replications and four treatments, using different fertilizer rates per hectare in each treatment (namely unfertilized control (T1), 50 kg urea + 50 kg N-P-K (T2), 100 kg urea + 100 kg N-P-K (T3) and 150 kg urea + 150 kg N-P-K (T4)). The results obtained indicate that all the maize growth parameters (plant height, number of leaves per plant, stem girth an...

It is expected that up to 2050, human population will be doubled. Agricultural researchers are striving their best to meet the food challenges. To get the higher yield, nitrogenous fertilizers use is also being increased. Nitrogenous fertilizers play vital roles in different plant’s growth and developmental processes. But, excessive use of nitrogen is no more beneficial to plants. Only 30 to 50% nitrogen use efficiency is recorded in plants, the remaining nitrogen is used by soil microbes, leached down in soil profile or volatilized. Different agronomical practices have been practiced and suggested for the general cultivation. Proper use of these agronomical practices can increase the crop yield and nitrogen use efficiency.

Aims: The objective of this research was to investigate the effect of calcium silicate on gaseous exchanges and production factors in the sweet pepper, cultivated under conditions of soil salinity induced by potassium fertilization, in protected cultivation. Study Design: The experiment was arranged in a randomized complete block design in a 2 × 5 factorial scheme with five replications. Place and Duration of Study: The experiment was conducted in the sector of Olericultura and Experimentation of the course of Agronomy from October 12, 2018 to February 2019. Methodology: The experiment was arranged in a randomized complete block design in a 2 × 5 factorial scheme (two sources of correction: calcareous and silicon and five increasing rates of KCl equivalent to 150, 300, 450, 600 and 700 kg ha-1 of K2O). Ten treatments with five replicates where each experimental unit consisted of a polyethylene pot, with a volume of 19 dm3. The electrical conductivity, the determination and quantific...

Brazil is the third largest corn producer in the world. Despite the country’s position in the maize production ranking, some Brazilian regions have a significantly low maize crop yield, mainly due to lack of management recommendations for it. Thus, the aim of the current study is to evaluate the performance of maize cultivars subjected, or not, to NPK fertilization in Alagoas State hinterland. The experiment was carried out at Federal Institute of Alagoas – Piranhas Campus – from February 2019 to June 2019. It followed a randomized block experimental design at factorial arrangement (5x2), with four repetitions, which totaled 40 experimental plots. The first factor comprised five maize cultivars (BRS Caatingueiro, M274 Morumbi, BRS 2022, Crioula Cateto and AG 1051), whereas the second one encompassed NPK fertilizer application, or not. Fertilization led to the best results in most of the evaluated parameters and to increased grain yield (3,037.7 kg ha-1) in all evaluated cultivars. T...

Aims: The research was carried out to evaluate the agronomic performance of corn cultivars in contrasting phosphorus environments in the state of Pará, Brazil. Study Design: The experimental design was randomized blocks with ten treatments and three replications. The treatments were composed of ten cultivars: AG 1051, AG 8088PRO2, BR 206, BRS 3046, PR 27D28, 2B655PW, AL BANDEIRANTE, ANHEMBI, CATIVERDE 02 and ORION Place and Duration of Study: In the 2017/18 crop, two competition trials of corn cultivars were carried out at Sítio Vitória, municipality of Santa Maria das Barreiras, state Pará, Brazil. Methodology: Two competition trials of corn (Zea mays L.) cultivars were carried out under contracting conditions of phosphorus: high P (100 kg ha-1 of P2O5) and low P (50 kg ha-1 of P2O5), using simple superphosphate (18% P2O5) as the source. The agronomic efficiency of phosphorus use was obtained by the difference between grain yield in both levels, divided by the difference between do...

The objective of this study was to investigate appropriate fertilization schemes to improve the production of maize and sorghum in the Sahel agroecological zone of Cameroon. The experiment was carried out in 2018 at IRAD (Institute of Agricultural Research for Development) Kismatari experimental field. The experimental setup was a complete randomized block design in four replicates and four treatments for each crop. For maize, treatments were: T1 (No input), T2 (100 kg NPK + 100 kg Urea.ha-1), T3 (150 kg NPK + 150 kg Urea.ha-1), and T4 (200 kg NPK + 200 kg Urea.ha-1). For sorghum, treatments were: T1 (No input), T2 (50 kg NPK + 50 kg Urea.ha-1), T3 (100 kg NPK + 100 kg Urea.ha-1), and T4 (150 kg NPK + 150 kg Urea.ha-1). All fertilizer treatments NPK and urea were applied to both crops respectively at 3 and 5 weeks after sowing. Nine weeks after sowing, the plant height was highest at T3, following by T2 and T4 for the two crops. The treatment Original Research Article Temegne et al.; JEAI, 42(8): 50-58, 2020; Article no.JEAI.60683 51 T1 exhibited the lowest grain yield while T2 and T3 showed intermediate grain yield. The treatment T4 produced the highest biomass, number of ears.plant-1 , and grain yield (maize: 3.3 t. ha-1 , sorghum: 2.9 t.ha-1) for the two crops and thus appears to be the most appropriate fertilizer recommendation for maize and sorghum production in the Sahel zone. However, costs-benefits studies for the use of fertilizer NPK and urea are warranted to facilitate adoption by farmers in the agroecological zone.