Open Access Original Research Article

Biofertilization of Tifton 85 with Sludge from Sewage Treatment Station of Whey Industry

Daniel Schwantes, Affonso Celso Gonçalves Jr, Alfredo Richart, Luiz Schulz, Jéssica Manfrin, Andréia da Paz Schiller, Eduardo Schulz

International Journal of Plant & Soil Science, Page 1-10
DOI: 10.9734/IJPSS/2017/33549

The high concentration of N, P and other components present in sludge from wastewater treatment plants make it economically interesting the application in agricultural crop, as soil biofertilizer. The objective of this study was to evaluate the influence of the application of biological sludge, from an effluent treatment plant, in Tifton 85 crop, observing the performance of the sludge as biofertilizer and, finally, evaluating the bioaccumulation of nutrients and metals in the leaf tissue of plants biofertilized with the sludge. The experiment was carried out in completely randomized design (CRD), with application of five doses of dehydrated sludge, being the applied doses of 0, 10, 20, 30 and 40 m³ ha-1, in six replicates. After 47 days of application of sludge, the forages were cut to 12 cm from soil, stored and dried, for further determination of dry mass and bioaccumulated contents of P, K, Ca, Mg, Cu, Zn, Fe, Mn, Pb and Cr. The application of sludge to soil did not present negative influences on the development of Tifton 85 forage, having contributed significantly to the increase of N, P and CP. However, at sludge doses above 50 mg kg-1, Mn leaf contents reduced Fe absorption by plants. There was no significant absorption of metals such as Cr, Cd and Pb by the plant.

Open Access Original Research Article

Mineral Composition of Maize (Zea mays L) Plant Irrigated with Wastewater and Moringa oleifera Leaf Extract

Haruna Ezekiel Shehu, Vincent Akucha

International Journal of Plant & Soil Science, Page 1-8
DOI: 10.9734/IJPSS/2017/32552

A study was conducted in the screen house at the FAO/TCP teaching and research farm of Adamawa state University, Mubi to assess the effect of wastewater from fish pond and Moringa oleifera leaf extract on the mineral composition of maize plant. Results showed that the concentration of minerals in maize plant were in deficient range for P (0.11-0.12%), Ca (0.12 – 0.22%), Cu (1.65 – 2.55 mg/kg), and Mn (17.5 – 19.0 mg/kg) in all irrigations except K (2.05 – 3.02%) that was in sufficient range. Wastewater irrigation had Mg (0.70%) and Zn (31.93 mg/kg) composition in sufficient range and Fe (45 mg/kg) in deficient range. Moringa leaf extract irrigation had maize plant composition of Fe (66.7 mg/kg) in sufficient range while combined wastewater and Moringa leaf extract irrigation had Mg (0.31%), Fe (51.67 mg/kg) and Zn (33.60 mg/kg) in sufficient range. Irrigating maize plant with wastewater + Moringa leaf extract improved P, K and Zn composition by 9.1, 43.8 and 5.2%, respectively. Regression and correlations analyses indicate that Na concentration in the soil is the element affecting greater number of elements composition in the plant and subsequently the growth characters. Therefore, wastewater from fish pond and Moringa leaf extract irrigation either in combination or separately did not increase the nutrient elements and heavy metals to toxic limits and therefore can be used for irrigation purposes especially maize crop.

Open Access Original Research Article

Content of Cd, Cr and Pb in Soil and Amaranthus caudatus Grown in Yamaltu-Deba Local Government Area, Gombe State, Nigeria

A. K. Ibrahim, A. Salem

International Journal of Plant & Soil Science, Page 1-8
DOI: 10.9734/IJPSS/2017/32859

The concentrations of some heavy metals (Cd, Cr and Pb) were determined in top soil and (Amaranthus caudatus) samples from irrigated farmlands in Yamaltu, Gombe State, Nigeria, using Atomic Absorption Spectrophotometer (AAS). The results show that the heavy metals contents were higher in the soil than in the amaranths. The results also revealed the trend in soil metals concentration as Cd > Pb > Cr and for the plant as Cd > Cr > Pb. Transfer factors (TF) decreased in the following order: Cd > Pb > Cr respectively. The levels of toxic metals are within the tolerable levels except for Cd in Amaranthus caudatus which are higher than the Indian Standard recommended values (1.5 mg kg-1) for human consumption. The high level of Cd place the consumers of this vegetable crop grown within the area at health risk with time unless an urgent step is taken to address this issue.

Open Access Original Research Article

Evaluation of Some Improved Wheat (Triticum aestivum L.) Genotypes for Growth and Yield Potential

Md. Omar Kayess, Md. Rafiqul Islam, Md. Hasanuzzaman, Md. Imanur Rahman, Md. Shoebur Rahman, Md. Kajal, Tanmay Datta

International Journal of Plant & Soil Science, Page 1-7
DOI: 10.9734/IJPSS/2017/31046

An experiment was conducted at the Research Farm of the Department of Genetics and Plant Breeding of Hajee Mohammad Danesh Science and Technology University, Dinajpur, Bangladesh during 2015-2016 to study the performance of the selected wheat variety based on some morphological traits. Twenty four wheat varieties were used in the experiment where they were collected from Wheat Research Centre, Bangladesh Agriculture Research Institute, Dinajpur. The experiment was conducted in randomized completely blocked design with three replications. Different yield contributing traits like thousand grain weight (g), number of grains per spike, number of spikelet’s  per spike, days to anthesis, heading days, plant height (cm), days to maturity and grain yield (g/plot) were assayed. The result of the analyses of variance for all the traits showed significant differences among the genotypes. The experimental result demonstrated that the variety PYT-15, BARI Gom 25 and PYT-12 performed better among the tested genotypes in relation to yield and yield contributing traits and those could be recommended for further popularization in different wheat growing regions of Bangladesh.

Open Access Original Research Article

Floristic Compositions and Its Affinities to Phytogeographical Regions in Wadi Khulab of Jazan, Saudi Arabia

Wael T. Kasem, Marei A. Hamed

International Journal of Plant & Soil Science, Page 1-11
DOI: 10.9734/IJPSS/2017/33047

Wadi Khulab considers one of the most important wadis in Jazan, south-western Saudi Arabia. Thus the current work provides an analysis of the floristic composition, life form and chorology of plant life of the wadi, a total of 119 species related to 93 genera represented 44 vascular plants families were documented. Six families (Aizoaceae, Euphorbiaceae, Papilionaceae, Poaceae, Amaranthaceae and Asclepediaceae) provided nearly half of the total number of species reported. Therophytes and chamaephytes are the most frequent life forms which may indicating a typical desert spectrum vegetation. The floristic composition of the different geomorphologic landscape units offered differences in species richness in the different sectors of the wadi, and the phytochoria. Monoregional and biregional areas contained 45 species (41%), while biregional species were 39 species (36%) respectively, while only two species (2%) were recorded in the pleuriregion. It is thus concluded that the region should be considered a hot-spot in the Kingdom in terms of floral diversity.