|
|
| 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. |
| |
|
|
|
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. |
| |
|
|
|
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. |
| |
|
|
|
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. |
| |
|
|
|
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 action’s 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. |
| |
|
|
|
|
|
|
|
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. |
| |
|
|
|
|
|
|
|
