The International Journal of Organic Agriculture Research and Development

Residual Effect of NPK 15-15-15 Fertilizer and Cassava peel Compost on Soil Properties and Maize Grain Yield

2023-02-18T08:06:08+00:00

Residual effect of organic fertilizers promotes the carry-over benefits of the earlier applied fertilizers on soil and the succeeding crops. This frial examined residual effect of single as well as different combinations ofNPK 15-15-15 and cassava peel composts (CPC) on soil physico-chemical properties, harvest index, biomass and grain yield of maize. Six treatments fitted into randomized complete block design (RCBD) and replicated three times were investigated. Six treatments composed of control, mineral fertilizer, cassava peel compost and their combinations. Analysis ofvariance (ANOVA) was used for all the data generated and the differences between treatment means were separated using Duncan multiple range test (DMRT) at ps 0.05. Regression and correlation analyzes were used to assessed the relationship between residual NPK fertilizer and cassava peel compost and the measured parameters. Plots that previously received combined application of 50 kg NPK ha-I and 3.75 t CPC ha-I improved soil physico-chemical properties better while plots with previous history of combined application of 100 kg NPK ha-I and 2.5 t CPC ha-I gave highest maize g^rain and biomass yield. The amendments had positive and significant correlation with clay percentage (r2 = 0.58) while total organic matter (r2 = 0.41 ) and total nitrogen content (r2 = 0.22) were positively correlated with the applied soil amendments but not significant. Both grain and biological yields exhibited positive and significant relationship with amendments (R2 = 0.97).

COMPARATIVE STUDY OF MINERAL FERTILIZER AND CASSAVA PEEL COMPOST ON SEED YIELD AND QUALITY ATTRIBUTES AND NUTRIENT USE EFFICIENCY OF SOYBEAN

2023-02-18T08:16:32+00:00

Nigeria generated approximately 3.75 million tonnes of cassava peel annually as waste. This constitutes major source of pollution to the environment. The major concern is how to convert this waste to useful product to support crop production. A field experiment was carried out to determine effect of cassava peel compost (CPC) and mineral fertilizer on yield attributes, grain yield, seed quality and nutrient use efficiency of soybean. The experimental design was a randomized complete block design with three replicates and each replicate contained all the six freatments. The six freatments consist of control, mineral fertilizer (15-15-15), cassava peel compost and their combination. Data collected on soybean yield attributes, seed quality and nutrient use efficiency were subjected to analysis of variance and significant means compared using Duncan Multiple Range Test (DMRT) at 5% probability level.

The highest yield attributes were recorded with combined application of mineral fertilizer and cassava peel compost. 100 kg NPK ha-I + 2.5 t ha-I CPC had highest total pods per plant and the highest percent pod setting was record with 150 kg NPK ha-1+1.25 t ha-I CPC. All freatment had significant effect on mineral components of soybean seed well as proximate composition. Sole application of mineral fertilizer gave highest nufrient use efficiency. Generally, combined application ofmineral fertilizer and cassava peel compost 100 kg and 2.5 t ha-I outperformed other treaünents expect with nutrient use efficiency.

Comparative Study of Mineral fertilizer and Cassava peel Compost on seed yield and quality attributes and nutrient use efficiency of Soybean

2023-07-08T11:21:19+00:00

Impact of supply of Chain Efficiency and Effectiveness on Organic Farms Profitabilty

2023-02-20T07:30:34+00:00

fanning and agriculture, supply chain costs must be evaluated to determine the extent to which processes of production contribute to an effective value proposition and whether elements ofproduction contribute to profitability. The study aimed to examine the impact of supply chain efficiency and effectiveness on organic farms' profitability in Ontario, Canada. The methodology adopted by the researcher to study this phenomenon was a qualitative approach, while the research design was a literature-based review. Thematic and content analysis methods were also utilized, which helped the researcher identify two themes which are Supply Chain and Distribution Channel Impact on Organic Farms and Recent Trends in Organic Farm Profitability. The findings ofthe study indicated that the supply chain of organic farms in Canada has been ineffective and inefficient. Distribution was noted to be a major challenge for these organic farms, which has led to organic foods not attaining the same breadth and depth as conventionally farmed goods. The findings also indicated that even iforganic foods have reached more markets, they are still not the focus in stores. Such scenarios have had a negative impact on the profitability of organic farms. Additionally, the findings also revealed that ineffectiveness in the supply chain has made the organic farms compete with fake products which are sold at low prices, which ultimately contribute to loss of profits to the organic farms. The findings also indicated that even though distribution still remains a challenge for organic farms, there is an emerging solution. The use of cooperative food systems and a network of local organic food co-ops are an emerging answer to the distribution problem contributing to supply chain ineffectiveness and inefficiency.

Effect of Vernonia amygdalina Leaf Extract on Organ Weights and Plasma Corticosterone of Cockerels Reared in a Tropical Environment

2023-07-08T11:21:15+00:00

Heat stress is a known limiting factor to poultry enterprise. Synthetic antioxidants can adversely affect animals and humans overtime. There is a need for phytogenic antioxidant such as Vernonia amygdalina Leaf Extract (VALE) for profitable animal production. This study is designed to evaluate effect of VALE on relative organ weights (ROW) and corticosterone of cockerels reared in the tropics. 45 twenty – one week old Issa Brown cockerels were used replicated thrice with 3 birds per replicate and assigned into five groups; Treatments 1, 2, 3, 4, 5, designated as T1, T2, T3, T4 and T5 with administration of 0mls, 0.4/ liter of vitamin C 30mls/liter, 60mls/liter and 90mls/liter of VALE respectively ROW, corticosterone temperature and humidity were monitored. The rectal temperature (RT) of birds in T2, T3 and T4 (41.38⁰C, 42.01⁰C, and 42.46⁰C) were lower thanT1 (42.53⁰C) at week 2. Heart and spleen weights of T3 (4.33g and 1.39g) were significantly higher corn pared with their respective controls: 2.60g and 0.60g. The least corticosterone level was observed in T5 (11.38ig/ml), while the highest was recorded in T1 (16.51lug/ml). It can therefore be concluded that VALE can be used to improve the performance of birds at to a concentration of 60mls.