Amelioration of Acidic Nitisols Using Lime and Vermicompost in Negasa Area, East Wollega Zone, Ethiopia
Issue:
Volume 6, Issue 1, January 2021
Pages:
1-10
Received:
28 December 2020
Accepted:
14 January 2021
Published:
28 January 2021
Abstract: The study was conducted at Negasa area in Guto Gida district to mitigate soil acidity using lime and vermicompost application on bread wheat land use of farmer’s field during 2018 main cropping season. The factors studied were four levels of agricultural lime (0, 50, 100 and 150% RR rated based on exchangeable acidity method) applied one month before planting and three levels of vermicompost (0, 2.5 and 5 t ha-1) applied two weeks before planting. The treatments were laid out as a RCBD in a factorial arrangement, and replicated three times. Representative soil samples were taken before and after planting. The soil physicochemical properties were analyzed following standard procedures. The soil pH and exchangeable basic cations (Ca and K) were significantly increased by 7.62, 31.16 and 26.08% respectively while exchangeable acidity and exchangeable Mg were significantly decreased by 47.73 and 26.53% respectively due to lime application at a level of 150% RR compared to control. While only exchangeable Mg, K and Na and soil bulk density were improved due to vermicompost application. The interaction effect of lime and vermicompost significantly influenced bulk density and total nitrogen of the soil. Simple correlation analysis among soil properties indicates that soil exchangeable acidity is significantly and negatively correlated with soil pH, exchangeable Ca and Na. It can be concluded that application of lime at the rate of 150% RR improve most chemical properties of acidic soil. Similar effort should be done over years to determine the long-term effect of lime and vermicompost on such acidic soil properties.
Abstract: The study was conducted at Negasa area in Guto Gida district to mitigate soil acidity using lime and vermicompost application on bread wheat land use of farmer’s field during 2018 main cropping season. The factors studied were four levels of agricultural lime (0, 50, 100 and 150% RR rated based on exchangeable acidity method) applied one month befo...
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Evaluating Air Pollution Tolerance Index (APTI) of Two Plant Species from Industrial Area of Jodhpur
Saraswat Punit,
Ashita Rai
Issue:
Volume 6, Issue 1, January 2021
Pages:
11-15
Received:
30 March 2021
Accepted:
13 April 2021
Published:
26 April 2021
Abstract: Jodhpur is the second largest district in the state of Rajasthan. With growth in the population numbers of vehicles along with industries have increased which is affecting the air quality of Jodhpur. Plants have a very close relationship with nature and they act as sink for reducing air pollution. Impact of air pollution on two plants namely Tabernaemontana and Sesbania (vegetable humming bird tree) from heavy industrial area site (HI) Phase II were evaluated in terms of air pollution tolerance index (APTI) by analysing four biochemical parameters namely, total chlorophyll, ascorbic acid, relative water content (RWC), and pH using standard methods. Fresh and mature leaves were collected every month from August 2019 to March 2020 in morning hours between 8.00 AM and 9.00 AM and total number of vehicles (between 8.00 AM and 4.00 PM) were counted. Average APTI values for Tabernaemontana and Sesbania were found to be 7.13 and 5.90 respectively and hence both the plants fall in the sensitive category. APTI showed a positive correlation with pH, RWC, and ascorbic acid but negative correlation with total chlorophyll in Tabernaemontana, while in Sesbania APTI showed a positive correlation with, relative water content RWC, and total chlorophyll and negative correlation with ascorbic acid and pH. The ascorbic acid content was found to be maximum in both Tabernaemontana and Sesbania in October 2019 (2.0 and 1.66). Relative water content and ascorbic acid of both plants were minimum in November 2019 (RWC 41.79 and 36.81) and August 2019 (0.4487 and 0.2682) respectively.
Abstract: Jodhpur is the second largest district in the state of Rajasthan. With growth in the population numbers of vehicles along with industries have increased which is affecting the air quality of Jodhpur. Plants have a very close relationship with nature and they act as sink for reducing air pollution. Impact of air pollution on two plants namely Tabern...
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