Beyond adoption: the interaction between organic and inorganic fertilizer application, and vegetable productivity in Ghana

Heckman Selection

Abstract This study explores the causal association between organic and inorganic fertilizer application and vegetable productivity in Ghana. Primary data were obtained from 300 pepper, cabbage and lettuce producers. To correct for self-selection bias and endogeneity, Heckman selection and three-stage least-squares models were estimated. More producers used inorganic fertilizers for pepper, cabbage and lettuce production than those who used organic fertilizers. Vegetable producers applied higher quantities of organic fertilizers (2830 kg) per acre than inorganic fertilizers (880 kg). Organic cabbage and lettuce producers recorded higher productivity than inorganic producers, but inorganic pepper producers had higher productivity than organic producers. However, vegetable producers who applied either organic or inorganic fertilizers, or both, recorded higher productivity than those who did not apply fertilizer. Factors that enhance the application of organic and inorganic fertilizers and vegetable productivity are education, farm size and production for export, land ownership, farmer association membership and perception about fertilizer price. Organic and inorganic fertilizer application improves vegetable productivity, and productivity promotes fertilizer application. Private agencies and government should subsidize fertilizers, improve producers' access to agricultural information, and train producers on productivity-enhancing agronomic practices.

RESPON TANAMAN KUBIS (Brassica olacea var. capitata) TERHADAP KOMBINASI APLIKASI PUPUK ORGANIK DAN ANORGANIK

Jurnal Ilmu-Ilmu Pertanian Indonesia ◽

10.31186/jipi.23.1.46-52 ◽

2021 ◽

Vol 23 (1) ◽

pp. 46-52

Author(s):

Erin Puspita Rini ◽

Sugiyanta Sugiyanta

Keyword(s):

Organic Fertilizer ◽

Fertilizer Application ◽

Inorganic Fertilizer ◽

Organic Fertilizers ◽

Growth And Yield ◽

Fertilizer Treatment ◽

Inorganic Fertilizers ◽

Nutrient Adequacy ◽

Number Of Leaves ◽

[CABBAGE (Brassica olacea var. capitata) GROWTH AND YIELD AFFECTED BY COMBINATION OF ORGANIC AND INORGANIC FERTILIZER APPLICATIONS]. The use of organic fertilizer increasingly sought by farmers due to the increase in demand for organic products by consumers and also awareness of the sustainability of the land. The use of organic fertilizers in the cultivation alone could improve the soil quality but needs to be balanced with inorganic fertilizers to meet the nutrient adequacy. This study aims to examine the effect of organic and inorganic fertilizers combination on the growth and cabbage yield, and also to determine the most efficient dosage combination of organic and inorganic fertilizers. This research was conducted at the IPB Pasir Sarongge Experimental Station, Cianjur, West Java from November 2020 to February 2021. The study was compiled using RCBD with 4 replications and 7 treatments. The results showed the combination of 0.75 doses of inorganic fertilizer (150 kg/ha of urea, 75 kg/ha SP36, and 75 kg/ha KCl) and 3 tons/ha of organic fertilizer could increase 14.87 to 15.44% plant height and the number of leaves at 12.82 -15.11% compared to the same dose of inorganic fertilizer treatment alone. The combination of 1 dose (200 kg/ha of urea, 100 kg/ha SP36, and 100 kg/ha KCl) inorganic fertilizer application and 2 tonnes/ha of organic fertilizer could increase 50,60% yield/plot and yield/ha cabbage than 1 dose of inorganic fertilizer treatment..

Interaksi Antara Daya Tumbuh Benih dengan Pertumbuhan Tanaman Semangka (Citrullus lanatus (Thunb.) Matsum dan Nakai) Pada Pemupukan Organik dan Anorganik

Jurnal Penelitian Pertanian Terapan ◽

10.25181/jppt.v15i3.131 ◽

2017 ◽

Vol 15 (3) ◽

Author(s):

Nazirwan Nazirwan ◽

Anung Wahyudi

Keyword(s):

Block Design ◽

Organic Fertilizer ◽

Fertilizer Application ◽

Inorganic Fertilizer ◽

Main Stem ◽

Organic Fertilizers ◽

Stem Length ◽

Inorganic Fertilizers ◽

Number Of Leaves ◽

The aim of this research to observe and analyze the ability to grow of watermelon seeds in organic and inorganic fertilizers. Observing and analyzing the interaction between the ability to grow of watermelon seeds with plant growth in organic and inorganic fertilizers. Recommend a combination of organic and inorganic fertilizers that provide maximum results. This research was conducted in field of State Polytechnic of Lampung on June until Agustus 2014. This research uses a randomized complete block design (RCBD) with treatment in the form of thiamethoxam, inorganic fertilizers and organic fertilizers, namely: P1 = 0% organic fertilizer + 100% inorganic fertilizer; P2 = 25% organic fertilizer + 75% inorganic fertilizer; P3 = 50% organic fertilizer + 50% inorganic fertilizer; P4 = 75% organic fertilizer + 25% inorganic fertilizer; P5 = 100% organic fertilizer + 0% inorganic fertilizer. Doses of inorganic fertilizers: Urea = 300 kg.ha-1, SP-36 = 200 kg.ha-1, KCl = 100 kg.ha-1. Organic fertilizer: manure (cow manure) = 20 tons.ha-1. Data were analyzed with analysis of variance and if there is a real different treatments followed by LSD test at 5% level. The results showed that organic and inorganic fertilizer application significantly affected fruit length and fruit weight, but did not significantly affect the ability to grow, main stem length and number of leaves. The length of the longest fruit found in the treatment of inorganic fertilizer application of 75% + 25% organic fertilizer (P2). While the weight of the heaviest fruit found in the treatment of organic fertilizer application of 100% (P5). The highest ability to grow plant found in the treatment of 100% inorganic fertilizer application (P1), treatment of inorganic fertilizer application 50% + 50% organic fertilizers (P3), P2 and P5 treatment. The longest length of main stem found in P5 treatment, while the highest number of leaves found in P2 treatment. Keywords: fertilization, organic, inorganic, watermelon

Effect of Organic and Inorganic Fertilizers on the Quantitative and Qualitative Parameters of Rice (Oriza sativa L.)

Current Agriculture Research Journal ◽

10.12944/carj.6.2.05 ◽

2018 ◽

Vol 6 (2) ◽

pp. 166-174

Author(s):

P. Sharada ◽

P. Sujathamma

Keyword(s):

Grain Yield ◽

Optimal Growth ◽

Rice Production ◽

Inorganic Fertilizer ◽

Organic Fertilizers ◽

Physical Parameters ◽

Inorganic Fertilizers ◽

Essential Nutrients ◽

Straw Yield ◽

Rice is the most important staple cereals in human nutrition and consumed by 75% of the global population. Rice plant needs supply of essential nutrients for its optimal growth. Rice production has been increased tremendously in India after green revolution combined with insensitive irrigation and use of inorganic fertilizers and pesticides. However, the effect of using inorganic fertilizers has resulted in contamination of ground water and decreased the productivity of soil, which in turn affects the rice production in long term. Use of organic manure may help to regain the soil health but they are insufficient to provide the essential nutrients to achieve optimal growth. So, use of organic manures combine with inorganic fertilizers are followed to obtain optimum yields. This study aimed to test the effect of the different organic fertilizer and combinations of organic and inorganic fertilizers on the qualitative and quantitative parameters of two cultivars of rice as DRR Dhan 39 and RP.BIO.226. The experiment was conducted on the farm located at Fasalwadi village, Sangareddy district, Telangana during kharif season in randomized complete block design with three replications. The treatment included two controls and 10 combinations of four organic fertilizers as farmyard manure, vermicompost, Panchagavya, Jeevamrutha and inorganic fertilizers as combination of 60:75:75 levels of N, P and K. Grain and straw samples were collected and physical parameters were measured at harvest stage. The results indicated that the variety DRR Dhan 39 gave the statistically significant (P<0.0001) higher grain yield of 8713 kg/ha and straw yield of 9483kg/ha with 50% organic fertilizers of Vermicompost, Jeevamrutha 5% and Panchagavya 3% and 50% inorganic fertilizer of NPK. On the other hand, the variety of RP.BIO.226 gave the highest grain yield of 6390 kg/ha with Vermicompost, Jeevamrutha 5% and Panchagvya 3% (8 t/ha, foliar spray and 500 litres/ha) and highest straw yield of 7430 kg/ha with T10 treatment (50% organic fertilizers of Vermicompost, Jeevamrutha 5% and Panchagavya 3% and 50% inorganic fertilizer of NPK). Both varieties of rice poorly responded to inorganic fertilizers with lower grain and straw yield. Statistically significant differences were observed in both varieties of grain crude protein (CP%), straw acid detergent fiber (ADF%), crude fiber (CF%) and acid detergent lignin (ADL%) with different fertilizers

Effect of Organic and Inorganic Fertilizers on Agronomic Growth and Soil Properties of Coffee (Coffea arabica L.) at Jimma, Southwestern Ethiopia

International Journal of Current Research and Academic Review ◽

10.20546/ijcrar.2021.901.008 ◽

2021 ◽

Vol 9 (1) ◽

pp. 86-94

Author(s):

Obsa Atnafu Mohammed Kedir ◽

Ewnetu Teshale Meseret Nugusie

Keyword(s):

Yield Components ◽

Agricultural Research ◽

Inorganic Fertilizer ◽

Organic Fertilizers ◽

Inorganic Fertilizers ◽

Coffee Husk ◽

Southwestern Ethiopia ◽

Coffee Yield ◽

Coffea Arabica L

A field experiment was conducted at Jimma Agricultural Research Center, Agaro Agricultural Research Sub Center, southwestern Ethiopia for five consecutive cropping seasons from 2015/16 to 2019/20 to evaluate effect of organic (conventional compost) and inorganic NP fertilizers on agronomic growth and soil properties of coffee (Coffea arabica L.). The treatments consisted of 100% recommended decomposed coffee husk alone, 100% recommended NP rate alone, 100% of NP + 25% of compost (DCH), 75% of NP + 50% of compost (DCH), 50% of NP + 50% of compost (DCH), 50% of NP + 75% of compost (DCH), 25% of NP + 75% of compost (DCH), 25% of NP + 100% of compost (DCH) and Control (without input, farmers’ practice). The experiment was laid out in randomized complete block design with three replications. Higher yield of clean coffee yield was obtained from the application of 50% dose of nitrogen and phosphorous from inorganic fertilizer sources and 50% dose of decomposed coffee husk (2083.5kg ha-1) while the lowest clean coffee yield (1570.5kg ha-1) was obtained from no application of fertilizers. Application of organic fertilizers (compost) with inorganic fertilizers gave statistically similar yield components to NP fertilizer alone for five years. Significant differences (p>0.05) due to soil nutrient sources were observed in coffee height where inorganic fertilizer treatment resulted in tallest coffee plants (348.23 cm) and no application of nutrients having the shortest coffee trees (200.49 cm) after two year. Lower yield and yield components of Limu1 coffee were achieved from no application of organic and inorganic fertilizer sources. In conclusion, organic fertilizers (conventional compost) alone cannot provide a viable substitute for inorganic fertilizer without causing a significant yield. Therefore, integrated use of organic and inorganic fertilizers was recommended for coffee production at Jimma, southwestern Ethiopia and other similar agro ecology.

AJARCDE | Asian Journal of Applied Research for Community Development and Empowerment ◽

Response of Soybean (Glycine Max (L.) Merrill) to Organic and Inorganic Fertilizers

10.29165/ajarcde.v4i1.31 ◽

2020 ◽

Vol 4 (1) ◽

pp. 13-19

Author(s):

Jonie C Simbulan ◽

Norman De Jesus

Keyword(s):

Block Design ◽

Organic Fertilizer ◽

Fertilizer Application ◽

Inorganic Fertilizer ◽

Growth And Yield ◽

Flowering Plant ◽

Net Income ◽

Yield Performance ◽

Inorganic Fertilizers ◽

The effects of organic and inorganic fertilizers on the growth and yield performance of soybean was evaluated at ALIAS R & DE Center, Pampanga State Agricultural University, PAC, Magalang, Pampanga from December 2017 to March 2018. It was laid out in the field according to the procedures of randomized complete block design (RCBD) with three replications. The treatments tested were T1 – No fertilizer application, T2 – 500 kg/ha of Power Organic, T3 – 21.74 kg/ha of Urea and 150 kg/ha of Super Phosphate, T4 – 250 kg/ha of Power Organic + 10.87 kg/ha of Urea and 75 kg/ha of Super Phosphate, T5 – 375 kg/ha of Power Organic + 5.44 kg/ha of Urea and 37.5/ha of Super Phosphate, T6 – 125 kg/ha of Power Organic + 16.31 kg/ha of Urea and 112 kg/ha of Super Phosphate. Results revealed that all organic and inorganic fertilizers applied crops were significantly different in terms of days to flowering, plant height at flowering, length of pods, weight of 100 seeds and computed seed yield per hectare. Cost and return analysis reveals that the highest net income and return of investment was derived from the combination of 50 % organic and 50 % inorganic fertilizer. Conjunctive use of organic and inorganic fertilizer, that is, 50 % recommended rate of organic fertilizer (Power organic) along with 50 % recommended rate of inorganic fertilizer (Urea and Super Phosphate) can enhance the growth and yield performance of soybean and can help the farmer to increase their production with higher net income.

Growth and Yield Performance of Some Lowland Rice Varieties Applied with Different Rates of Organic and Inorganic Fertilizers

Asian Journal of Soil Science and Plant Nutrition ◽

10.9734/ajsspn/2019/v4i230039 ◽

2019 ◽

pp. 1-11 ◽

Cited By ~ 1

Author(s):

Nonilona P. Daquiado

Keyword(s):

Organic Matter ◽

Grain Yield ◽

Plant Height ◽

Soil Ph ◽

Fertilizer Application ◽

Inorganic Fertilizer ◽

Rice Varieties ◽

Inorganic Fertilizers ◽

Grain Yields ◽

Aims: This study was conducted to formulate appropriate fertilization scheme for some rice varieties used at University Income Generating Project (UIGP) sites of Central Mindanao University (CMU), Philippines and to determine the effects of organic and inorganic fertilizers on some soil chemical properties. Study Design: Split-plot in Randomized Complete Block Design (RCBD) in three replications with 5 levels of inorganic and organic fertilizers as main plot factor and 3 rice varieties as sub-plot factor. Place and Duration of Study: UIGP area of CMU, Musuan, Bukidnon, the Philippines from November 2015 to May 2016. Methodology: Plots were laid out following Split-plot in RCBD in 3 replications. The 5 levels of Fertilizers were: no fertilizer (control), 90-60-60 kg NPK/ha, 2t vermicompost/ha, 45-30-30 kg NPK/ha + 2t vermicompost/ha and 90-60-60kg NPK/ha + 2t vermicompost/ha while the three rice varieties were: Matatag 11, NSIC Rc158 and NSIC Rc238. The initial characteristics of the soil served as the basis for the recommended rate of inorganic fertilizer application at 90-60-60 kg NPK/ha. Results: Analysis of variance showed that interaction between the levels of fertilizers and varieties were not significant for all agronomic and yield parameters except the number of days to 50% flowering implying that the varieties had a similar response to the levels of fertilizers. Results revealed that the levels of fertilizers significantly affected plant height at 30 (P = 0.011) and at 50 days after transplanting, DAT (P = 0.006), productive tiller count (P = 0.002), % filled grains (P = 0.026), and grain yield (P = 0.003) while the varieties significantly differed in plant height at 50 DAT (P = 0.006), number of days to 50% (P = 0.001) and 100% flowering (P = 0.001), % filled grains (P = 0.039), 1,000 grain weight (P = 0.009) and grain yield (P = 0.044). When averaged across varieties, grain yields were increased by fertilizer application with 90-60-60 + 2t vermicompost/ha giving significant increase of 2.14 t/ha (vs control) and 90-60-60 kg NPK/ha, 2t vermicompost/ha, and 45-30-30 + 2t vermicompost/ha giving not significant increases of 1.26, 0.36 and 1.05 t/ha, respectively. NSIC Rc238 had the highest grain yield that was significantly higher than that of NSIC Rc158 but not with that of Matatag 11. Moreover, soil pH, organic matter and extractable phosphorus (P) contents of the experimental plots after harvest were significantly influenced by vermicompost and inorganic fertilizer application (P = 0.01) with plots applied with vermicompost exhibiting significantly higher pH values and organic matter contents compared to those plots with no fertilizer and those applied with inorganic fertilizers alone. Conclusion: Findings of the study disclosed that vermicompost is an effective organic amendment to improve soil pH, soil organic matter content and rice productivity in Maapag soil and its application at 2t/ha in combination with 90-60-60 kg NPK/ha gave the highest grain yields of Matatag, NSIC Rc158 and NSIC Rc238 at 6.23, 6.10 and 6.75 t/ha, respectively that were higher than their average yields but lower than their maximum yields.

Integrated Use of Organic and Inorganic Fertilizers on Maize (Zea Mays L.) Yield and Soil Fertility in Andisols of Sidama, Ethiopia

10.20944/preprints202011.0314.v1 ◽

2020 ◽

Author(s):

Melkamu Hordofa Sigaye

Keyword(s):

Soil Fertility ◽

Block Design ◽

Maize Yield ◽

Inorganic Fertilizer ◽

Organic Fertilizers ◽

Net Benefit ◽

Inorganic Fertilizers ◽

Maize Production ◽

Np Fertilizer

The study was carried out to determine the influence of organic and inorganic fertilizers on maize yield and soil fertility; to determine economically optimum organic and inorganic fertilizer combinations for maize production. The study was performed in a randomized complete block design consisting of 10 treatments and 3 replications. The treatments were: Control, 100% of R-NP (138 N and 92 P), 100% of vermicompost,100% of conventional compost, 25% R-NP +75% of vermicompost, 50% of R-NP + 50% of vermicompost, 75% of R-NP+25% of from vermicompost, 25% of R-NP +75% of conventional compost, 50% of R-NP+50% of conventional-compost, 75% of R-NP +25% of conventional-compost. All rates of vermicompost and conventional compost were applied based on N equivalence. Results indicate that applications of inorganic fertilizers with a combination of organic source fertilizers were increases maize yield and yield components and improves the nutrient status of the soil. The highest maize grain yield (7494.3 kg ha-1) and above-ground biomass yield (18718.0 kg ha-1) were obtained from the applications of 50% recommended NP fertilizer plus 50% vermicompost which is based on the recommended N equivalent respectively. Similarly, we found that a combination of both inorganic and organic fertilizers application also is the best strategy to improve major soil nutrients, maintain soil fertility. The economic analysis revealed that the highest net benefit of (108,872.0 ETB ha-1) was obtained from the application of 50% recommended NP fertilizer plus 50% vermicompost based on the recommended N equivalence. Yet, the lowest yield and net benefit value were attained from the control or unfertilized plot. Therefore, this study suggests that an appropriate proportion of organic fertilizer with inorganic fertilizer not only for higher yield maize production with an assurance of potential economic returns to the small hold farmers but also improve and maintain the soil fertility and should be adopted with similar soil type and agro-ecologies.

Growth, Yield, Nutritional and Mineral Composition of Solanum macrocarpon L. as Affected by Fertilizer Application

Journal of Biotechnology Research ◽

10.32861/jbr.66.69.78 ◽

2020 ◽

pp. 69-78

Author(s):

Damilola Grace Olanipon ◽

Joshua Kayode ◽

Modupe Janet Ayeni

Keyword(s):

Growth Parameters ◽

Poultry Manure ◽

Fertilizer Application ◽

Nutritional Composition ◽

Inorganic Fertilizer ◽

Growth And Yield ◽

Fertilizer Treatment ◽

Alternative Source ◽

Inorganic Fertilizers ◽

Indigenous vegetables are plant species that are of great nutritional and medicinal importance. In a bid to ensure their domestication, availability and consumption, it is necessary to investigate their response to fertilizer treatment and other suitable agronomic practices that will enhance their cultivation and nutritional composition. In this study, an experiment was carried out to determine the effect of organic and inorganic fertilizers on the growth and yield of Solanum macrocarpon. The experiment was laid out in a Complete Randomized Design with four treatments: NPK 200 kg /ha, - T1, Poultry manure 6t/ ha - T2, NPK and Poultry manure 100 kg/ha + 3 t/ha - T3, Control, No Fertilizer - T4. Leaf area, plant height, number of leaves, and stem diameter were measured using standard methods. Proximate and mineral analyses were also carried out in accordance with standard chemical methods. The growth and yield of S. macrocarpon was improved by fertilizer application. All growth parameters measured increased with plant age and significant differences (p < 0.05) were observed among the treatments. Results obtained from this study also highlighted the potential of poultry as an alternative source of Nitrogen required for plant growth. Although both organic and inorganic fertilizers improved the growth performance of the vegetable, yet, the inorganic fertilizer produced the best results for all the parameters studied. Inorganic (NPK) and organic (Poultry manure) fertilizer increased soil fertility and improved the nutritional composition, but Solanum macrocrapon plants grown with inorganic fertilizer performed better.

Effects of Organic and Inorganic Fertilizers on the Growth and Yield of Kenaf (Hibiscus cannabinus L.) Production in South Western Nigeria

International Journal of Plant & Soil Science ◽

10.9734/ijpss/2021/v33i230408 ◽

2021 ◽

pp. 1-9

Author(s):

S. O. Olanipekun ◽

A. O. Togun ◽

A. K. Adebayo ◽

F. B. Anjorin

Keyword(s):

Seed Yield ◽

Block Design ◽

Field Trials ◽

Fertilizer Application ◽

Hibiscus Cannabinus ◽

Organic Fertilizers ◽

Growth And Yield ◽

Mineral Fertilizers ◽

Inorganic Fertilizers ◽

Organic Fertiliser

Farmers use Inorganic Fertilizers (IF) to improve kenaf yield in Nigeria. However, the detrimental effects of mineral fertilizers and its high cost calls for the use of organic fertilizers that are locally available and environment friendly. Combination of Organic Fertiliser (OF) with IF may reduce the bulkiness of OF while harnessing the benefit of both for higher yields. Field trials were conducted at Ibadan and Ilora in 2013 and 2014 to investigate the effects of combined fertilizers on the growth and yield of kenaf. Organic and IF (NPK 20:10:10) fertilizers as: (i) 160 kg ha-1 (sole organic), (ii) 100 kg ha-1 (sole IFl), (iii) Organic and IF at 50:50 ratio and (iv) control (no fertilizer). The experiment was laid out in Randomized Complete block design (RCBD) and replicated three times. Results showed that plant height (220.17 cm, 216.80 cm) and stem diameter (2.27 cm, 1.16 cm). Bast fiber (2.27 t/ha, 2.27 t/ha) and seed yield (1.69 t/ha, 1.78 t/ha) in Ibadan and Ilora respectively were significantly higher in plots with combined fertilizer. Combined fertilizers had the highest fiber and seed yield above sole application and control (no fertilizer application). Hence it is recommended for kenaf cultivation in Southwest Nigeria.

Improvement of Soil Chemical Properties of Typic Hapludult After Application of Organic and Inorganic Fertilizers

Journal of Tropical Soils ◽

10.5400/jts.2017.v22i3.131-137 ◽

2017 ◽

Vol 22 (3) ◽

pp. 131-137 ◽

Cited By ~ 1

Author(s):

Syariful Mubarok ◽

Kusumiyati Kusumiyati ◽

Iman Muhardiono ◽

Anni Yuniarti ◽

Santi Rosniawati ◽

...

Keyword(s):

Organic Fertilizer ◽

Inorganic Fertilizer ◽

Flowering Plant ◽

Available P ◽

Control Treatment ◽

Fresh Weight ◽

Inorganic Fertilizers ◽

Positive Effects ◽

Total P

Tuberose (Polyanthes tuberosa L.) is a potential flowering plant that will be developed in Jatinangor, West Java, Indonesia. However, the characteristics of Typic Hapludult soil in Jatinangor , i.e. clay texture, acidic pH, and high amount of total-P but low in available-P cause the tuberose difficult to grow optimally. The aim of this study was to obtain the potential ratio of organic and inorganic fertilizer dosages for tuberose grown on Typic Hapludult. The combinations of organic and inorganic fertilizers with different ratios (0/0; 0/1; 1/0; 0.5/0.5; 0.5/1; 1/0.5; 1/1.5; 1.5/0; 1.5/0.5, and 1.5/) were applied. The application of the combination of organic and inorganic fertilizers showed positive effects on soil pH, available-P, total-P, and fresh weight of tuberose grown on Typic Hapludult. The application of 50% organic fertilizer + 50% inorganic fertilizer was an effective combination that was able to increase the fresh weight of tuberose up to 9240 g plant-1 or increasing the fresh weight by 39% in comparison to that in the control treatment (without fertilizer application).