Open Access Original Research Article

Effects of Lime, Cow Manure Application with RhizobiumInoculation on Yield and Quality of the Peanut in the Grey Degraded Soil of Tri Ton town

Nguyen Van Chuong, Pham Van Liem, Ho Thanh Tuan

Asian Journal of Soil Science and Plant Nutrition, Page 1-10
DOI: 10.9734/ajsspn/2021/v7i230106

The field study was carried out in the grey degraded soil of Tri Ton town during Winter-Spring and Summer-Autumn crop of 2019- 2020. The field experiment was carried out by four treatments and four replications. Four treatments of Winter-Spring crop: The control treatment applied NPK (100 kgUrea + 556 kgP2O5 + 100kg KCl); (NT2): application of NPK, lime with Rhizobium inoculation; (NT3): NPK, cow manure and Rhizobium inoculation; (NT4):NPK, cow manure and lime with Rhizobium. Four treatments of Summer-Autumn cropwere carried on the prior experiment (Winter-Spring crop).However, treatments did not apply to cow manure, lime and Rhizobium(only NPK).The maximum plant biomass (168 g), number of nodule (92.1), fresh and dry weight of  fill pods (61.4 and 37.6 g, respectively), fresh and dry weight of empty pods (2.07 and 1.19 g ), weight of dry nodules (0.83 g ) per plant, yield (6.12 ton ha-1), protein and oil in seeds (26.1 and 50.1%, respectively) were observed in cow manure and lime applied with Rhizobium inoculated treatments. All the parameters of growth and yield showed best result for application of lime and cow manure with synthetic Rhizobium inoculation of seeds. Cow manure has significantlyincreased the yield of peanut in the next crops. The results from our two crops of study showed that co-application of NPK, cow manure, lime and Rhizobium inoculation always increased field capacity in both crops.

Open Access Original Research Article

Physico-chemical Characterization of the Soils of New Heveicolate Localities of Côte d’Ivoire: Case of the Departments of Man (West) and Toumodi (Centre)

Koffi Antoine, Soro Dogniméton, Diomandé Métangbo, Konan Djézou, Essehi Jean Lopez, Obouayeba Samuel

Asian Journal of Soil Science and Plant Nutrition, Page 11-21
DOI: 10.9734/ajsspn/2021/v7i230107

In order to assess the suitability of soils for rubber cultivation in the departments of Man and Toumodi, two new rubber-growing areas, a study was carried out to evaluate the physical, physico-chemical and chemical characteristics of soils under rubber trees (Hevea brasiliensis). The methodology used consisted of a physical description of twelve soil pits, coupled with chemical analyses of the soil samples taken. The pedological profiles carried out revealed that these soils belong mainly to the Ferralsol class with distinctive characteristics, except for those of Kimoukro (Toumodi) which belong to the Cambisol class. The Toumodi soils, of silty-clay-sandy texture, are provided with coarse elements (≥30 p.c) with good internal drainage in the surface horizons. More or less deep, depending on the topographical position, Toumodi soils are slightly acidic (pH = 6) and less supplied with nitrogen and exchangeable bases. The soils of Man, on the other hand, have a sandy-clay texture, with more than 30 p.c. of clay from the surface to the depths. The bulk density (Da = 1.6 ≥ 1.5 g/cm3) was higher for the soils of this locality compared to those of Toumodi (Da = 0.8 ≤ 1 g/cm3). The soils of Man, which are less rich in nitrogen and carbon, are more acidic (pH = 5.4). Exchangeable base contents and CEC are high, mainly in the upper surface horizons.

Open Access Original Research Article

Influence of Compost Tea and Potassium Humate on Soil Properties and Plant Growth

Sarah E. E. Fouda, Enga M. Niel

Asian Journal of Soil Science and Plant Nutrition, Page 29-40
DOI: 10.9734/ajsspn/2021/v7i230109

An experiment was conducted during two seasons 2018/2019 and 2019/2020, cultivated with soybean, at farm Ismailia Governorate, Egypt. The aim of this study was to evaluate the effect of two treatments (potassium humate and compost tea) at different rates of (0, 2, 4 and 6 ml/L water) with two application methods (soaking and foliar application) on soil fertility and soybean productivity. In both seasons, each experiment was carried out in randomized complete blocks design with four replicates. Data showed that the lowest value of soil pH 7.87 was obtained in the soil treated with foliar application of compost tea at 6 ml/L compared with other treatments. Also, the used of potassium Humate and compost tea foliar application was significant decrease of soil salinity (EC dSm-1), while soaking method was no significant for decrease soil salinity. The different rates of all treatments soaking method to soil gave significant increase of N and P available contents in soil while the foliar application was no significant. As well as, the K available in soil treated with all rates of treatments led to significant increase for soaking. The highest mean values of Fe, Mn and Zn contents in soil treated were with foliar application of compost tea. Compost tea soaking and foliar application increased soybean productivity. The highest values of all growth parameters plants i.e. (plant height (cm), No. of leaves/plant, No. of pods/plant, pods weight (g)/plant, seeds yield (ton/ha) and weight of 100 seed (g) were treated with potassium humate foliar application than all treatments.

Open Access Original Research Article

Isolation, Morphological and Biochemical Characterization of Rhizobacteria from Arsenic Contaminated Paddy Soils in Bangladesh: An In vitro Study

Mohammad Mosharraf Hossain, G. K. M. M. Rahman, M. A. M. Akanda, A. R. M. Solaiman, M. T. Islam, M. M. Rahman

Asian Journal of Soil Science and Plant Nutrition, Page 41-55
DOI: 10.9734/ajsspn/2021/v7i230110

Soil-plant–microbes relations within the plant rhizosphere are the determinants of plant and soil health, which is important for soil ecological environment for plant-microbe interactions. Plant growth-promoting rhizobacteria (PGPR) are considered to encourage plant growth and development directly or indirectly in soil. PGPR can demonstrate a diversity of characteristics responsible .for influencing plant growth and development. During this study, Twenty four different bacterial isolates were isolated, and detailed morphological, biochemical, and physiological characterizations of those isolates were accomplished. This experiment was performed with the 24 bacterial isolates to see their gram stain test, KOH test, catalase activity, cellulose degradation capability, in dole acetic acid (IAA) production, and phosphate solubilization activities, and also tested for growth within the different arsenic and salt stress conditions and 37°C temperature. Results revealed that among the rhizobacterial isolates, fifteen bacterial isolates were negative and nine was positive in gram reaction, while some were showed high IAA production ability, phosphate solubility capability, and cellulose degradation capacity within the culture media. The isolates were isolated from paddy soils and a few were characterized by a yellow color, flat elevation, and gram-positive, while some were characterized because of the yellowish color with round colony shape, raised elevation, gram-negative, and every one the isolates were positive in catalase production capacity and phosphate solubilization activity which is able to increase the available phosphorus within the soil for plants and also produced indole acetic acid that may use as a hormone to be used in growth enhancement of plants. Hence, these isolates need to be tested further for their effect on arsenic dynamics at the plant rhizosphere, selection of suitable plant species for the bacterial association, bacterial effect on arsenic uptake by plants, and potentials for field applications for sustainable agriculture.

Open Access Review Article

Zinc Biofortification of Cereal Crops: A Review Article

Nooruldeen S. Ali

Asian Journal of Soil Science and Plant Nutrition, Page 22-28
DOI: 10.9734/ajsspn/2021/v7i230108

Micronutrient deficiency can be considered as one of the yield "quantity and quality" limiting factor in arid calcareous lands and can be considered as the troubling component of hunger. Therefore, enriching food products through adding nutrients to a food product or through increasing soil fertility and breeding crop for nutrient efficiency are alternatives available to improve food quality. However, poor people have no excess to food additives and can benefit from naturally enriched food products or what being called Biofortification. The existence of a general geographical overlap between soil Zn deficiency and human Zn deficiency has been already postulated. As agriculture-based food products are the major source of human nutrition, the relationship between the nutrient status of soils, food crops, and human health is understandable. poor but also deliver all the essential nutrients needed for adequate nutritional health. Sustainable solutions to malnutrition will only be found by closely linking agriculture to nutrition and health. The undergoing review would discuss these concepts and their implementation and uses with special concern on Iraqi conditions.