Iris Publishers Agriculture Soil Science

Current Application of Microencapsulation Technology in Bioremediation of Polluted Groundwater Authored by Stalis Norma Ethica The long-term establishment of the global water supply and sustainability is closely related with the world population growth and global climate change. Steadfast growth of the world’s population forecasted to be almost multiplied by two from 3.4 to 6.3 billion between 2009 - 2050, is presented by a predicted required growth of 70% agriculture production by 2050 [1]. Hence, the need for fresh water is dramatically increasing, especially for food production. It is because 70% of the withdrawals of world’s freshwater are already adjudged for agricultural land irrigation. Today each year, 64 billion cubic meters of fresh water are consumed progressively by worlds’ population [2]. In developing countries, ground water contamination is a key issue, with high levels of pollutants being reported in various regions. Various contamination control and groundwater trea...

Influence of Agricultural Lime in Alleviating Acidity Level of Various Acid Soils Authored by Dipendra Chaudhari Influence of agricultural lime in acidity level, macro-nutrients (P&K) mineralization and plant growth in various acid soils were investigated inside glass house in French bean (Phaseolus vulgare). The experiment underwent from 24th July to 8th October 2017. Liming of five different acid soils (Pine Forest Soil, Black Soil, Red Soil, Swampy Soil and Cultivated Soil) were done as per the doses recommended by SMP buffer method. Plant height was measured, and the soil was sampled to 15 to 25cm depth, initially and then at interval of 15 days till 75th day of treatment application. The experiment was carried under Completely Randomized design (CRD). Data of soil parameters (soil pH, P & K availability) and plant parameter (plant height) at different times were critically analyzed for significance test at 5% level of significance. Desirable pH range for crop cultivation ...

Yam-Based Cropping Systems Performances with Herbaceous Legumes and Chemical Fertilizers Authored by Raphiou Maliki In West Africa, the traditional yam-based cropping systems (shifting cultivation and slash-and-burn) contribute to the deforestation, land degradation and low soil productivity. With the aim of designing more sustainable yam cropping systems, the agronomic research organization in Benin implemented alternative systems including herbaceous legumes (Aeschynomene histrix and Mucuna pruriens var utilis) and chemical fertilizers.This study examines the effect of rotations with herbaceous legumes and chemical fertilizers on yam yields and soils, to see how consistent they are for the different farmers within a site, and different sites. A perennial experiment was implemented for 4 years, with 2-year rotations, smallholder farmers’ traditional rotations maize-yam or 1-year Andropogonon gayanus (natural fallow)–yam, with rotations intercropped Aeschynomene histrix with maize-yam...

The Cause of Increased Effectiveness of Water-In-Oil Emulsion Over Water Application of Trichoderma Ovalisporum on Theobroma Cacao Authored by Ronald T Collins Experiments in Costa Rica showed thatTrichoderma Ovalisporum applied in a water-in-oil (corn oil) emulsion gave significantly better control of frosty pod rot disease on cacao (Theobroma cacao) pods when compared to water applications. Experiments were conducted in Ecuador in 2011 and 2012, to determine whether the effectiveness of the T. ovalisporum was supported by the applied spray characteristics (Volume Median Diameter, number of droplets per cm2, droplet volume per cm2, area coverage per cm2, Relative Span Factor and estimated spores per cm2) as opposed to the creation of an environment conducive to spore germination and colonization of the cacao pod. The relative span factor and number of deposits were not different between the two formulations. The Volume Medium Diameter, droplet volume, Droplet volume and area coverage...

Environmental Impact Assessment and Source Identification of Total Suspended Particulate Matter and Some Elements Emitted from a Workplaces in Jordan Authored by Omar Ali Al Khashman The objective of the present study was to assess the extent and severity of atmospheric particulate concentrations and metal concentration in dust, street dust and soil in the Aqaba Industrial Estate (AIE). Samples of dust, street dust and soil were analyzed for their contents of atmospheric particulate matter and elements (Fe, Cu, Ni, Pb, Zn, Mn and Cr) after digestion with nitric acid. This study shows that analyzed major sources and magnitude of elements pollution. The mean concentrations of the elements were as follows: CFe > CPb > CZn > CCr > CMn > CCu and CCd where C stands for concentration. Zn, Cd and Pb were in high levels in the area close to the workplace, while the chromium level was low. This study indicates that all of the elements are concentrated on the surface soil, and dec...

Antifeedant Potential of Some Aromatic Plants Against Cowpea Weevil, Callosobruchus Maculatus Authored by Egwunyenga Ogochukwu Andy The antifeedant potential of extracts of five natural plants; Galic (Allium sativum), Manjack (Cordia millenii), African nutmeg (Mondora myristica), Negro pepper (Xylopia aethiopica) and Ginger (Zingiber officinale) against cowpea weevil, (Callosobruchus maculatus) was evaluated. The results established that extracts of Ginger caused the strongest feeding deterrency against the insect pests with percentage feeding index of 48.3%. The order of the antifeedant potency of the extracts against C. maculatus after 5-hour exposure was Z. officinale (43.9%), > X aethiopica (48.3%) > C. millenii (59.9%) > A. sativum (61.6%) > M. myristica (64.9%). The study further discussed the challenges confronting researchers and farmers in practically deploying these plant materials for general use in crop protection and makes recommendations on appropr...

Influence of Planting Dates on Cane and Sugar Yields for Some Sugarcane Varieties Authored by Mohamed Owais Ahmed Galal The present study was carried out at El-Mattana Research Station, Luxor Governorate, Agricultural Research Center, Egypt. In two plant crop seasons of 2017/2018 and 2018/2019 to study the effect of planting dates on yield for three sugarcane varieties (G.T.54-9, G.98-28 and G.84-47) grown at three planting date in mid-March, mid-April and mid-May. The date of harvesting was in mid-March for all planting dates. A split plot arranged RCBD, in four replications, was used for the experiment. The three varieties were randomly distributed to the main plot while the three planting dates were assigned to sub-plot. The results indicated that planting sugarcane in mid-March was superior in millable cane/fed, cane weight, as well as cane and sugar yields in both seasons. To read more about this article:  https://irispublishers.com/wjass/fulltext/influence-of-p...

Antifeedant Potential of Some Aromatic Plants Against Cowpea Weevil, Callosobruchus Maculatus Authorized by Egwunyenga Ogochukwu Andy The antifeedant potential of extracts of five natural plants; Galic ( Allium sativum ), Manjack ( Cordia millenii ), African nutmeg ( Mondora myristica ), Negro pepper (Xylopia aethiopica) and Ginger ( Zingiber officinale ) against cowpea weevil, ( Callosobruchus maculatus ) was evaluated. The results established that extracts of Ginger caused the strongest feeding deterrency against the insect pests with percentage feeding index of 48.3%. The order of the antifeedant potency of the extracts against C. maculatus after 5-hour exposure was Z. officinale (43.9%), > X aethiopica (48.3%) > C. millenii (59.9%) > A. sativum (61.6%) > M. myristica (64.9%). The study further discussed the challenges confronting researchers and farmers in practically deploying these plant materials for general use in crop protection and makes reco...

Influence of Planting Dates on Cane and Sugar Yields for Some Sugarcane Varieties Authorized by Mohamed Owais Ahmed Galal The present study was carried out at El-Mattana Research Station, Luxor Governorate, Agricultural Research Center, Egypt. In two plant crop seasons of 2017/2018 and 2018/2019 to study the effect of planting dates on yield for three sugarcane varieties (G.T.54-9, G.98-28 and G.84-47) grown at three planting date in mid-March, mid-April and mid-May. The date of harvesting was in mid-March for all planting dates. A split plot arranged RCBD, in four replications, was used for the experiment. The three varieties were randomly distributed to the main plot while the three planting dates were assigned to sub-plot. The results indicated that planting sugarcane in mid-March was superior in millable cane/fed, cane weight, as well as cane and sugar yields in both seasons. The commercial sugarcane variety G.T.54-9 surpassed the other two varieties in the number of m...