Enhancing Productivity and Livelihoods among Smallholder Irrigators through Biochar and Fertilizer Amendments at Ekxang Village, Vientiane Province, Lao PDR

 

 

 

 

 

Business Members

Organization Members

Sign Up For Email Updates

Enter your email address:

Follow us on Twitter
Follow us on Twitter
Follow IBI
Photo of Biochar
Biochar Certification

Help put the Earth back in the black

 

Title Enhancing Productivity and Livelihoods among Smallholder Irrigators through Biochar and Fertilizer Amendments at Ekxang Village, Vientiane Province, Lao PDR
Publication Type Conference Paper
Year of Publication 2015
Authors Macedo, J.Souvanhnachit M.Rattanavong S.Maokhamphiou B.Sotoukee T.Pavelic P.Sarkis M., and Downs T.
Conference Name Climate-Smart Agriculture Conference
Abstract Climate change and climate variability pose significant risks to smallholders in the rainfed lowlands of Lao PDR. Increased surface temperatures, declining rainfall, persistent drought and depleting soil nutrients all serve to impact agricultural productivity and livelihoods. This study investigates the impact of five treatments on soil nutrients, moisture, plant growth, and yield of water spinach (Ipomoea aquatica). The treatments tested were rice husk biochar only, biochar inoculated with manure, manure tea, inorganic fertilizer and the control. The costs and benefits of the treatments were also assessed. The randomized complete block design was used to assign five treatments and eight replications to the experimental units. Biochar was produced through slow pyrolysis. Soil physical properties were assessed with the visual soil assessment method and 15-randomized soil samples were collected for chemical analyses. Sprinklers were used for irrigation and a weather station installed to monitor the climate. Descriptive statistics and analysis of variance were used to analyze the data. Costs-benefits evaluation of the treatments was conducted to determine the net benefits relative to the initial costs ratio. The analysis of variance of mean yield indicates that the difference in yield among the treatments was highly significant. The computed F value (8.08) was higher than the tabular F value (4.07) at the 1% level of significance. The calculated coefficient of variance of mean yield was 17.33%. The net benefits to initial costs ratio of treatments suggest that the control (5.84), biochar inoculated with manure plus NPK (0.93), and biochar plus manure (0.87) are most preferred. The net benefits and initial costs evaluation of treatments is important to assess whether utilizing these treatments would impact smallholders’ livelihoods. The results of this study contribute to the evidence that biochar could play an essential role to mitigate climate change risks by enhancing soil quality and increase agricultural productivity.
URL www.researchgate.net/profile/Jenkins_Macedo/publication/268076126_Enhancing_Productivity_and_Livelihoods_among_Smallholder_Irrigators_through_Biochar_and_Fertilizer_Amendments_at_Ekxang_Village_Vientiane_Province_Lao_PDR/links/5460dd2a0cf2c1a63bff749b.pdf

3rd Field Trip Visual Updates from B. Ekxang, Laos

January 22, 2014

The following pictures were taken during our 3rd field trip to the village were the plots are located. I will try to include brief captions of each picture. But the pictures should be self-explanatory.One of the main purposes of this visit was to select a second site for the experiment with different soil type from the other site. Site A soil type is sandy clay uniformly distributed across the plot.

This is the building of the village chief. Laos and Vietnam have a really interesting and supportive partnership and political relationship in which both countries support each other. These flags are just few of the many symbolic representation of such relationship.
This is the building of the village chief. Laos and Vietnam have a really interesting and supportive partnership and political relationship in which both countries support each other. These flags are just few of the many symbolic representation of such relationship.
Office of the chief to meet with him and discuss about the steps to secure a second site from a local farmer.
Office of the chief to meet with him and discuss about the steps to secure a second site from a local farmer.
Site B: 1104 sq. Meters
Site B: 1104 sq. Meters

IMG_0272

IMG_0271

IMG_0270

IMG_0268

IMG_0267

IMG_0266

IMG_0265

IMG_0264