ARPN Journal of Agricultural and Biological Science       ISSN 1990-6145
   
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ARPN Journal of Agricultural and Biological Science                   May 2014 | Vol. 9 No. 5
 
Title:

Impact of rice straw burning methods on soil temperature and microorganism distribution in the paddy soil ecosystems

Author (s):

Nguyen Song Tung, Nguyen Xuan Cu and Nguyen Xuan Hai

Abstract:

This paper presents the impact of rice straw burning methods (dispersive and intensive) on soil temperature and microorganisms. The results showed that, burning methods have different impact on the soil microorganisms. The direct burning method on rice field increased the soil temperature, especially at the topsoil layer. Nowadays, rice straws are commonly burnt by two methods, which are here named as intensive (piled) and dispersive burning. These both methods had decreased the number of soil microorganisms. The soil temperature caused by intensive was higher than dispersive burning. Consequently, the impact on microorganism by the intensive is stronger than dispersive burning. However, due to the intensive burning should be on a small dot, the recover of microorganisms after intensive burning was better than dispersive burning.

 
 
 
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Title:

Account of the environment throughout the life cycle of the production of electricity from biomass

Author (s):

Prayong Keeratiurai

Abstract:

These main objectives of study were the accounting list of the carbon mass and greenhouse gases. They were CO2 and CH4. The GHGs were released from the production of electrical energy of biomass power plant. Life cycle inventory was used to assess the costs and environmental impacts of the use of biomasses in the production of electrical energy. The study found that the average of carbon dioxide and methane were released during 2007 to 2011 were 55,043.46 ton.CO2 and 46,620.14 ton.CH4, respectively. The environmental impact costs of CO2 gas was 5.63 baht/ton.CO2 and CH4 gas was 6.65 baht/ton.CH4 in 2007 to 2011. This research also studied to evaluate the production of electricity from mixed biomasses. The results showed that the electrical energy production with mixed biomasses, which they were mixed from rice husk and wood chips at a rate of 4 to 1, was the lowest of direct costs and the costs of environmental impact.

 
 
 
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Title:

Improved quality protein maize response to NPK fertilizer in Sudan savanna agro-ecological zone of Ghana

Author (s):

N. Abdul Rahman and F.M. Tetteh

Abstract:

The experiment was conducted to determine improved quality protein and open pollinated maize (obatanpa) response to different rates of NPK fertilizer. Experiment was laid in RCBD with four replications. Treatment evaluated were 0-0-0-0, 0-90-90, 40-90-90, 80-90-90, 120-90-90, 160-90-90, 120-0-90, 120-45-90, 120-90-0 and 120-90-45 NPK kg/ha. The soil at site was Tanchera series (Ferric Lixisol, FAO, 2006). Results indicated that, number of cobs, cob weight, grain yield, stover weight, biological yield and harvest index responded significantly with increasing rates of N fertilizer in both seasons. In 2010, 160-90-90 obtained the highest yield and yield components and 120-90-90 recorded the highest yield and yield components in 2011 season. The least yield and yield components were obtained by treatment 0-0-0 and 0-90-90 plots. Application of different rates of P and K fertilizers at different rates did not significantly influence yield and yield components in both seasons. Correlation analysis showed a significant co-efficient (r) among NPK fertilizer, yield and yield component during 2010 and 2011 seasons. NPK fertilizer application on the average increased grain and biological yield by 768.7%, 96% in 2010 and 357.2%, 150.6% in 2011 over control plots. Application of N fertilizer may be used to increase yield and yield components of maize but application beyond 120 N kg/ha may not produce significant result in this agro-ecological zone of Ghana. However, due to poor nature of soils in the agro-ecological zone application of P and K fertilizer up to 45 kg/ha may be used to increase yield and yield components of maize.

 
 
 
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Title: Effect of lead (Pb+2) on seed germination of sesamum (Sesamum indicum L. Var ylm-11) in solution and pot cultures at different test concentrations of lead
Author (s):

Lakshmi N.

Abstract:

The present study deals with the effect of lead (Pb+2) on seed germination in Sesamum (Sesamum indicum L. Var YLM - 11) in solution as well as pot experimental studies. Three test concentrations of lead (Pb+2) 23.6 ppm, 236 ppm, 2360 ppm are taken in a solution as well as a pot (soil) culture besides a test control to grow the sesamum species. Effect of lead on germination success and seedling characteristics were studied in test species grown in above test concentrations of lead, besides control.

 
 
 
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Title: Mode of inheritance of genes control maturity in soybean
Author (s): Gatut Wahyu, A.S, W. Mangoendidjojo, P. Yudono and dan A Kasno
Abstract:

Inheritance of a character has important significance in determining plant breeding strategies so that improvements in the character can be better. The crossbreeding materials used in this research included Nanti, Dempo, Dieng, Malabar and Grobogan varieties. The research was conducted at the Jambegede Experimental station, Kepanjen, Malang, East Java Province, July 2009. The population was grown in the form of rows of 2.5 m long, spaced by 40 cm x 15 cm, one plant per hole. The population included P1 (parent), P2, F1 F1r (reciprocal F1) and F2. Test on the effects of female parent was done by using a mean-difference test (t-test) at 5% level of significance. The degree of dominance of genes (gene action) on the maturity days was calculated by applying a potency ratio formula showing the gene actionís effect on the crossbreeding of both parents on F1. The chi-square test was used to find out the pattern of F2 segregation population. The genetic analysis to estimate the number of controlling genes, gene action, and the pattern of segregation was done by employing the SAS program-version 9. The crosses between the used parents had no effect maternal. The maturity days of soybean led to the parents having earlier maturing days, and the age of the F1 generation plant was shorter than the parent of longer maturing plants. The major genes had a role in controlling the characters of maturity days of soybeans in the F2 population. The cross between Grobogan and Dieng varieties followed the ratio of 3 (Dieng):1 (Grobogan) which means the maturity days was controlled by on dominant genes.

 
 
 
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Title:

Effect of hydrolyzed leather shavings as food additives, partially replacing vegetable proteins in the fish food, on histopathology of rohu (Labeo Rohita) fingerlings

Author (s): Saeeda Fatima, Muhammad Anwer Malik, Ali S. and Usman S.
Abstract:

The effect of hydrolyzed chrome shavings on the histopathology of liver kidney, stomach and intestine in the fingerlings of Labeo rohita were investigated using 5%, 10% and 15% levels of chrome shavings. After supplementation histopathology of liver Kinney, stomach and intestine showed varying degrees of changes such as necrosis, pyknosis, karyolysis, hemorrhages and degeneration of epithelial linings in the tissues of groups exposed to chrome shaving. Results showed that these are time and dose dependent.

 
 
 
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