Perceptions, Risk Attitude and Organic Fertilizer Investment: Evidence from Rice and Banana Farmers in Guangxi, China

Overuse of chemical fertilizer has led to severe land degradation and environmental pollution in China. Switching to organic fertilizer may improve soil quality and reduce pollution, which is meaningful to the sustainable development of Chinese agriculture. This study examines how farmers’ perceptions and risk preference affect their organic fertilizer investment using a representative rural household survey from Guangxi, a major agricultural region in China. Tobit and double-hurdle models are used to empirically test their impacts on organic fertilizer adoption and investment. An ordinary least squares model is used to regress chemical fertilizer use on the same set of explanatory variables to compare and contrast farmers’ different fertilizer investment behaviors. It is found that both organic fertilizer perceptions and risk attitude significantly affect organic fertilizer investment. Perceived yield-increasing and quality-improving effects encourage organic fertilizer investment, while perceived cost increases discourage it. Moreover, risk-averse farmers are more likely to invest in organic fertilizers. Most of the perceptions affecting organic fertilizer investment have an opposite impact on chemical fertilizer investment, which suggests substitutability between organic and chemical fertilizer. Interventions that aim to improve farmers’ perceptions of organic fertilizer and illustrate its risk-reduction effect could be effective in promoting organic fertilizer use, which can help achieve China’s sustainable development of agriculture.

Download Full-text

Yield and Oil Content of Mint under Different Nitrogen Fertilizer Treatments

Notulae Scientia Biologicae ◽

10.15835/nsb10110221 ◽

2018 ◽

Vol 10 (1) ◽

pp. 92-96

Author(s):

Hamed KESHAVARZ ◽

Seyed Ali Mohammad MODARRES SANAVY

Keyword(s):

Essential Oil ◽

Plant Height ◽

Organic Fertilizer ◽

Chemical Fertilizer ◽

Organic Fertilizers ◽

Oil Yield ◽

Japanese Mint ◽

Oil Percentage ◽

Fertilizer Combination ◽

Essential Oil Yield

Two species of mint Mentha piperitha (peppermint) and M. arvensis (Japanese mint) are widely cultivated in Iran, but their response to fertilizer regime has not been evaluated so far. A field experiment was conducted to investigate the effects of different organic and chemical fertilizer treatments [Control, 100% urea (95 kg N ha−1), 75% urea (71.25 kg N ha-1) + 25% vermicompost (3.3 t ha-1), 50% urea (47.5 kg N ha-1) + 50% vermicompost (6.75 t ha-1), 25% urea (23.75 kg N ha-1) + 75% vermicompost (10.1 t ha-1) and 100% vermicompost (13.5 ton ha-1)] on essential oil contents, yield and yield components of the two species of mint. Peppermint provided grater plant height, number of internodes, number of leaf and oil percentage compared with the Japanese mint under study. The results indicated that, irrespective of the mint species, plants treated with combined chemical and organic fertilizer presented taller plants, higher oil contents and oil yield compared with solo chemical or organic fertilizers. Oil percentage and essential oil yield of mint increased significantly under the treatment with 25% urea (23.75 kg N ha−1) + 75% vermicompost (10.1 t ha-1). Plant height and number of leaf increased along the replacement of organic fertilizer with chemical fertilizers. The results showed that there was a positive and significant correlation with leaf number and essential oil yield. Application of vermicompost in combination with chemical fertilizer increased plant height, oil percentage and essential oil in both species, suggesting that organic and chemical fertilizer combination improves performance and environmental sustainability.

Download Full-text

Effect of organic and chemical fertilizers on the growth and production of soybean (Glycine max) in dry land

Revista Facultad Nacional de Agronomía Medellín ◽

10.15446/rfnam.v74n3.90967 ◽

2021 ◽

Vol 74 (3) ◽

pp. 9643-9653

Author(s):

Ratih Sandrakirana ◽

Zainal Arifin

Keyword(s):

Organic Fertilizer ◽

Measurement Data ◽

Fertilizer Application ◽

Chemical Fertilizer ◽

Organic Fertilizers ◽

Food Sources ◽

Size Analysis ◽

Fertilizer Treatment ◽

Dry Land ◽

Randomized Design

Soybean is known for its high protein content, which is the reason why it is widely used as one of the main food sources for humans and animals. In order to optimize soybean growth, farmers tend to add excessive dosage of chemical fertilizer to this crop. Furthermore, a continuous chemical fertilizer application without organic fertilizer addition may cause a rapid depletion of nutrients in the soil. This study aimed to evaluate the effectiveness of organic fertilizer treatment to reduce the amount of urea as chemical fertilizer needed in soybean cultivation. A complete randomized design was conducted using 21 treatments of organic and chemical fertilizer in triplicate with a 4x3 m plot size. Analysis of variance was carried out to compare the means of measurement data and Duncan multiple range test (DMRT 5%) was applied. The treatment 2,000 kg ha-1 compost + 50 kg ha-1 urea (O2K2A1) resulted the highest dry yield in soybean and had significant differences with urea-only treatment. A mixture of chemical and organic fertilizers had no significant result over the yield compared to the use of chemical fertilizer only. Compost application of 1,000-2,000 kg ha-1 with urea 50-100 kg ha-1 (O2K2A1 and O 2K1A2) showed an increase in seed yield of 35-38 % with a profit reaching 333-340 USD ha-1 compared to standard treatment using urea 50 kg ha -1 + SP-36 50 kg ha-1 + 50 KCl kg ha-1 (O0K0A1).

Download Full-text

Welfare Impact of Organic Fertilizer Adoption: Empirical Evidence From Nigeria

Frontiers in Sustainable Food Systems ◽

10.3389/fsufs.2021.691667 ◽

2021 ◽

Vol 5 ◽

Author(s):

Zainab Oyetunde-Usman ◽

Oyinlola Rafiat Ogunpaimo ◽

Kehinde Oluseyi Olagunju ◽

Omotuyole Isiaka Ambali ◽

Waheed Mobolaji Ashagidigbi

Keyword(s):

Organic Fertilizer ◽

Household Survey ◽

Climate Impact ◽

Organic Fertilizers ◽

Productive Capacity ◽

Welfare Impact ◽

Access To Credit ◽

Agricultural Households ◽

Fertilizer Adoption ◽

Household Heads

Soil fertility depletion is acknowledged to adversely influence agricultural productivity and welfare status of rural farming households. Studies have shown that organic fertilizer utilization tends to rejuvenate the soil, thereby enhancing its productive capacity. This study seeks to estimate the welfare impact of organic fertilizer adoption among agricultural households using the 2018/2019 Nigeria General Household Survey (GHS). The novelty of this study is in the use of propensity score matching (PSM) and endogenous treatment regression (ETR) to address biases that may arise from both observed and unobserved factors. Results show that the adoption of organic fertilizers positively and significantly impacts the welfare of farmers, particularly when sources of unobserved characteristics of agricultural households are accounted for. The heterogeneity impact results show that female household heads, agricultural households that had access to credit, and farm household residents in the southern region of Nigeria significantly gained more from the adoption of organic fertilizers. In addition, a check for time effect reveals that the adoption of organic fertilizers does not result in an immediate welfare effect; the effect is, however, positive and significant over time. This suggests that adoption does not only improve soil and mitigate against climate impact, but it also has a higher likelihood of providing long-term and sustainable welfare impact for agricultural households. The results point to the need for policies and programs to promote and sustain the adoption of organic fertilizers among agricultural households through addressing existing institutional barriers such as extension and credit facilities.

Download Full-text

Application of Granular and Non-Granular Organic Fertilizers in Terms of Energy, Environmental and Economic Efficiency

Sustainability ◽

10.3390/su13179740 ◽

2021 ◽

Vol 13 (17) ◽

pp. 9740

Author(s):

Egidijus Šarauskis ◽

Vilma Naujokienė ◽

Kristina Lekavičienė ◽

Zita Kriaučiūnienė ◽

Eglė Jotautienė ◽

...

Keyword(s):

Economic Efficiency ◽

Organic Fertilizer ◽

Experimental Studies ◽

Indirect Costs ◽

Economic Assessment ◽

Economic Benefits ◽

Organic Fertilizers ◽

Meat And Bone Meal ◽

Bone Meal ◽

Fertilizer Use

Granular organic fertilizers have been increasingly used in agriculture due to the longer delivery of nutrients to plants and the milder impact on the environment. The aim of this study was to determine the energy, environmental and economic efficiency of granular and non-granular organic fertilizers. Four technological scenarios of organic fertilizer use were used for comparative assessment: (1) manure fertilization (16.0 t ha−1), (2) manure fertilization (30.0 t ha−1), (3) manure pellet fertilization (2.0 t ha−1), and (4) fertilization with meat and bone meal pellets (0.7 t ha−1). Experimental studies using the mass flow method of laser spectroscopy were performed to evaluate the comparative environmental impact of granular and non-granular organic fertilizers. Economic assessment was performed for mechanized technological operations of loading, transportation and distribution of organic fertilizers, estimating the price of aggregates used and fuel consumed, the costs of individual technological operations and other indirect costs. The results showed that for mechanized technological operations, when fertilizing with granular organic manure and meat and bone meal fertilizer, energy consumption is 3.2 to 4.0 times lower compared to fertilization with manure. The average ammonia (NH3) emissions from granular organic fertilizers were found to be six times lower than from non-granular organic fertilizers. The lowest costs for mechanized works were incurred when using meat and bone meal pellets, the highest economic benefits of organic fertilizers by elements was when using manure 30 t ha−1, and the highest costs for organic fertilizers were incurred when using manure pellets.

Download Full-text

Effects of Three Types of Organic Fertilizers on Greenhouse Gas Emissions in a Grassland on Andosol in Southern Hokkaido, Japan

Frontiers in Sustainable Food Systems ◽

10.3389/fsufs.2021.649613 ◽

2021 ◽

Vol 5 ◽

Author(s):

Ryosuke Kitamura ◽

Chiho Sugiyama ◽

Kaho Yasuda ◽

Arata Nagatake ◽

Yiran Yuan ◽

...

Keyword(s):

Greenhouse Gas ◽

Net Primary Production ◽

Organic Fertilizer ◽

Ghg Emissions ◽

Reduction Rate ◽

Chemical Fertilizer ◽

Organic Fertilizers ◽

Chemical Fertilizers ◽

Carbon Loss ◽

Digestive Fluid

Reduction of chemical fertilizers and effective use of livestock excrement are required for the realization of sustainable agriculture and reduction of greenhouse gas (GHG) emissions. The purpose of this study was to estimate the reduction rate of GHG emissions represented by comparing global warming potential (GWP) using organic fertilizers instead of chemical fertilizers. The study was conducted in a managed grassland on Andosol in southern Hokkaido for 3 years from May 2017 to April 2020. There were five treatment plots: no fertilizer, chemical fertilizer, manure, slurry, and digestive fluid. Organic fertilizers were applied such that the amount of NPK did not exceed the recommended application rate, and the shortage was supplemented with chemical fertilizers. Fluxes in CO2 caused by heterotrophic respiration (RH), CH4, and N2O were measured using the closed chamber method. Net ecosystem carbon balance (NECB) was obtained as net primary production + organic fertilizer application—RH—harvest. The GWP was estimated by CO2 equivalent NECB and CH4 and N2O emissions in each treatment. Chemical fertilizer nitrogen application rates in the organic fertilizer treatments were reduced by 10% for manure, 19.7% for slurry and 29.7% for digestive fluid compared to chemical fertilizer only, but the grass yields were not significantly different among the fertilizer treatments. The 3-year NECB showed significantly smallest carbon loss in manure treatment, and smaller carbon loss in the organic fertilizer treatments than in the chemical fertilizer only. The reduction rate in the GWP with use of organic fertilizers relative to that of chemical fertilizer was 16.5% for slurry, 27.0% for digestive fluid, and 36.2% for manure. The NECB accounted for more than 90% of the GWP in all treatments. CH4 emissions were < 0.1% of the GWP. On the other hand, N2O emissions accounted for more than 5% of the GWP, and was larger in the order of slurry > chemical fertilizer only > digestive fluid > manure. As a conclusion, these organic fertilizers can be used without no reduction of crop yield instead of chemical fertilizer, however, manure is the best way to increase soil carbon and to decrease GWP, followed by digestive fluid.

Download Full-text

Pakchoi Antioxidant Improvement and Differential Rhizobacterial Community Composition under Organic Fertilization

Sustainability ◽

10.3390/su11082424 ◽

2019 ◽

Vol 11 (8) ◽

pp. 2424

Author(s):

Jianli Liao ◽

Jun Ye ◽

Yun Liang ◽

Muhammad Khalid ◽

Danfeng Huang

Keyword(s):

Community Structure ◽

Plant Biomass ◽

Inorganic Nitrogen ◽

Organic Fertilizer ◽

Chemical Fertilizer ◽

Organic Fertilizers ◽

Organic N ◽

Soil Conditions ◽

Fertilizer Treatment ◽

Organic Fertilization

A high level of antioxidants in organic-produced vegetables has been attributed to soil conditions; however, little is known about the relationships between antioxidants and rhizobacteria under different fertilization treatments. A pot trial for pakchoi (Brassica campestris ssp. chinensis L.) was conducted under greenhouse conditions with: (1) control; (2) chemical fertilizer; and (3) organic fertilizer. The responses of the plant, soil properties, and rhizobacterial community were measured after 45 days of cultivation. Fertilization increased soil nutrient levels and pakchoi productivity and the reshaped rhizobacterial community structure, while no differences in rhizobacterial abundance and total diversity were observed. Generally, most plant antioxidants were negatively correlated with inorganic nitrogen (N) and positively correlated to organic N in soil. The genera of Arthrospira and Acutodesmus contained differential rhizobacteria under chemical fertilizer treatment, which are known as copiotrophs. In addition, the addition of a chemical fertilizer may stimulate organic substance turnover by the enrichment of organic compound degraders (e.g., Microbacterium and Chitinophaga) and the promotion of predicted functional pathways involved in energy metabolism. Several beneficial rhizobacteria were associated with organic fertilizer amended rhizosphere including the genera Bacillus, Mycobacterium, Actinomycetospora, and Frankia. Furthermore, Bacillus spp. were positively correlated with plant biomass and phenolic acid. Moreover, predictive functional profiles of the rhizobacterial community involved in amino acid metabolism and lipid metabolism were significantly increased under organic fertilization, which were positively correlated with plant antioxidant activity. Overall, our study suggests that the short-term application of chemical and organic fertilizers reshapes the rhizobacterial community structure, and such changes might contribute to the plant’s performance.

Download Full-text

Pemberdayaan Kelompok Lanjut Usia melalui Pengenalan Teknologi Pembuatan Pupuk Organik Cair (POC) sebagai Upaya Bentuk Kepedulian terhadap Lingkungan

Bumi Lestari Journal of Environment ◽

10.24843/blje.2017.v17.i02.p01 ◽

2017 ◽

Vol 17 (2) ◽

pp. 90

Author(s):

I Gde Antha Kasmawan ◽

Gusti Ngurah Sutapa ◽

I Made Yuliara

Keyword(s):

Environmental Sustainability ◽

Organic Fertilizer ◽

The Elderly ◽

Organic Fertilizers ◽

Training Method ◽

Fertilizer Use ◽

Phosphorus And Potassium ◽

Practice Methods ◽

Interactive Lecture ◽

Nitrogen Phosphorus

In order to avoid post power syndrome, the elderly who have a hobby of farming / gardening can be empowered through the introduction of LOF (liquid organic fertilizer) making technology and its application. The aim is for the elderly to understand the technology of making organic fertilizers that are lightweight, useful and entertaining as well as for them to feel contribute in maintaining the environment. The training method applied is a combination of interactive lecture and practice methods. Based on these methods, have succeeded in growing their creativity in making LOF and feel comforted on the results obtained. Successful LOF products contained nitrogen, phosphorus and potassium (NPK) of 146,701 mg / L, 0.741 mg / L, and 0.035 mg / L, respectively, and magnesium (Mg) and calcium (Ca) of 86.332 mg / L and 1.970 mg / L. The application of LOF products has been done on the orchid plants (Phalaenopsis amabilis) with satisfactory results. Thus, the mastery of LOF making technology and its application will reduce the dependence of chemical fertilizer use and replace it with homemade organic fertilizer so it can contribute in maintaining health and environmental sustainability.

Download Full-text

The Impact of Bio-Organic and N, P, K Fertilizers on the Growth and Yield of Potato

10.5772/intechopen.98484 ◽

2021 ◽

Author(s):

Duraid K.A. AL-Taey ◽

Rusul F. AL-Shmary

Keyword(s):

Organic Agriculture ◽

Organic Fertilizer ◽

Chemical Fertilizer ◽

Organic Fertilizers ◽

Growth And Yield ◽

Spring Season ◽

Two Factors ◽

Long Term Impact ◽

The Impact

Bio-organic agriculture considers the medium- and long-term impact of agricultural interferences on the agro-ecosystem. It aims to produce food while setting an ecological balance to soil fertility. Bio-organic agriculture takes a proactive design as opposed to treating problems after they emerge, so the study was conducted for studying two factors: First: the cultivars (Riviera and Arizona) class A resulting from cultivation of class E imported and cultivated in spring season 2018. The second factor: fertilizer combinations (bio-organic fertilizers compared with traditional chemical fertilizers). Arizona cultivar significantly achieved the highest values, in most of the study parameters compared to Rivera cultivar. Significant differences were observed between the treatments of fertilizer combinations, the treatment (organic fertilizer + bio-fertilizer + 25% chemical fertilizer) significantly achieved the best values compared to the control. Bi-interaction treatment (Arizona cultivar + organic fertilizer + bio-fertilizer + chemical fertilizer 25%) achieved the highest yield per hectare (43.24 tons.ha−1).

Download Full-text

Effects of plant conduction systems and organic fertilizer management on disease incidence and severity in ‘Osiana’ and ‘Carola’ roses

Ornamental Horticulture ◽

10.14295/rbho.v21i1.778 ◽

2015 ◽

Vol 21 (1) ◽

pp. 85 ◽

Cited By ~ 1

Author(s):

Márcia De Nazaré Oliveira Ribeiro ◽

Elka Fabiana Aparecida Almeida ◽

Marília Andrade Lessa ◽

Pedro Martins Ribeiro Júnior ◽

Sérgio Soares Barbosa ◽

...

Keyword(s):

Disease Incidence ◽

Organic Fertilizer ◽

Training System ◽

Chemical Fertilizer ◽

Organic Fertilizers ◽

Training Methods ◽

Fertilizer Management ◽

Severity Of Disease ◽

Chemical Fertilization ◽

Stem Bending

Conventional pruning is a very common practice for pruning rose cultivars in Brazil. However, few Brazilian producers known any other efficient plant training method for roses, namely “lateral stem bending” or “arching technique”, which involves bending the branches of the rosebush in order to increase the photosynthetic rate of the plant. As well as plant training, the use of fertilizers must also be done carefully in order to obtain high quality roses. Biofertilizers are recommended because of their multiple effects: fertilizer, protein synthesis stimulant, insect repellent, and disease controller. The aim of this study was to assess the plant training system and management of organic fertilizer on the incidence and severity of disease in the ‘Osiana’ and ‘Carola’ roses. The ‘Osiana’ rosebushes received three concentrations (0%, 5%, and 15%) of foliar biofertilizer applied monthly to the leaves together with two plant conduction methods (conventional pruning and lateral stem bending). ‘Carola’ roses were treated with three types of fertilizer (chemical fertilizer on the soil + bokashi on the soil, chemical fertilizer on the soil + foliar FishfertilÒand chemical fertilization on the soil without applying organic fertilizers) every two weeks, together with 2 plant conduction systems (conventional pruning and lateral stem bending). The additional treatments in ‘Carola’ roses were composed of two organic fertilizers (Bokashi and foliar Fishfertil®) and chemical fertilization with lateral pruning. The incidence and severity of disease in these plants during the experiment were assessed over 5 months. For the ‘Osiana’ rose, the incidence and severity of disease were not influenced by fertilizer management or plant training methods. For the ‘Carola’ roses, the different types of fertilizer caused different responses according to the plant training system used, with the biofertilizer Fishfertil® reducing the incidence of powdery mildew when applied to plants with laterally bent stems.

Download Full-text

Replacing 30 % chemical fertilizer with organic fertilizer increases the fertilizer efficiency, yield and quality of cabbage in intensive open-field production

Ciência Rural ◽

10.1590/0103-8478cr20210186 ◽

2022 ◽

Vol 52 (7) ◽

Author(s):

Xinwei Cui ◽

Hongling Lu ◽

Yaoxiong Lu ◽

Peng Gao ◽

Fuyuan Peng

Keyword(s):

Organic Fertilizer ◽

Soluble Sugar ◽

Chemical Fertilizer ◽

Fertilizer Efficiency ◽

Marketable Yield ◽

Fertilizer Use Efficiency ◽

Fertilizer Use ◽

Yield And Quality ◽

Use Efficiency

ABSTRACT: The combined application of chemical fertilizer and organic fertilizer is an effective way to improve soil fertility, crop yield and quality. In this study, a field experiment was conducted to evaluate the yield, quality and fertilizer use efficiency of cabbage (Brassica oleracea var. capitata L.) grown under different ratios of organic fertilizer replacing chemical fertilizer at a rate of 225 kg N ha-l in 2019 and 2020. The fertilizer treatments included N0 (non nitrogen fertilizer), CK (only compound fertilizer was applied, N:P:K=15.0 %:6.5 %:12.4 %), T1, T2 and T3 (organic fertilizer replaced 15 %, 30 % and 45 % chemical fertilizer, respectively), and T4 (total nutrient input was reduced by 10 % under T2). Results showed that T2 had the highest marketable yield and fertilizer use efficiency, as well as the best quality. The marketable yield, vitamin C content, soluble sugar content, REN (apparent uptake efficiency of fertilizer N) and AEN (agronomic N use efficiency) of T2 increased by 32.2 %, 14,9 %, 5.5 %, 97. % and 55.6 %, respectively, in contrast, the crude fibers decreased by 34.0 %, compared with CK in the two years. In addition, T4 guaranteed the yield and moderately improved the quality of cabbage, compared with CK. Therefore, we can alternatively apply fertilization according to the purpose of capturing the highest yield or properly declining fertilizer to sustain soil texture and productivity.

Download Full-text