Open Access Original Research Article

Effects of Integrated Nutrient Management on the Performance of Mango on Hills in Three Districts, Bangladesh

Md. Zonayet, Alok Kumar Paul, Mostak Ahmed

Asian Journal of Soil Science and Plant Nutrition, Page 1-7
DOI: 10.9734/ajsspn/2020/v6i330088

This experiment was conducted in a mango garden at Bandarban, Khagrachari and Rangamati district in hilly area of Bangladesh from 15 October 2015 to 30 May 2017 to study the effects of integrated nutrient management on the performance of mango in hills. The experiment was laid out in a randomized block design with three replications. There were four treatments Mango (5-10 yrs. old). The treatments are:  4 (four) Fertilizer packages * T1= Control, T2= N230P53K100 S 36Zn3 B4 + CD/Compost 20000 g/plant, T3= 125% of T2 and T4= 150% of T2. In Khagrachari site, Mango yield varied from 7.72-22.30 kg/plant. The highest mango yield 22.30 kg/plant wasin T4 treatment (150% of T2). In Bandarban site, Mango yield ranged between24.13-48.25 kg/plant. The highest mango yield 48.25 kg/plant found in T3 treatment (125% of T2). In Rangamati site, Mango yield varied from 9.62-23.10 kg/plant. The highest mango yield 23.10 kg/plant found in T4 treatment (150% of T2). In most cases the significant difference in yields were found in T4 treatments in three districts.

Open Access Original Research Article

Evaluating the Effectiveness of Some Productivity Models on Floodplain Soils of Wukari Area, Northern Guinea Savanna, Nigeria

A. T. Gani, A. Ali, P. I. Agber, S. O. I. Abagyeh

Asian Journal of Soil Science and Plant Nutrition, Page 8-17
DOI: 10.9734/ajsspn/2020/v6i330089

A study on quantifying the productivity of Wukari flood plain soils using Neill’s Productivity Index (PI), Modified Neill’s Productivity Index (PIm) and Riquier Productivity Index (RI) was carried out. The applicability and validity of the productivity index models were determined using rice as a test crop. Result showed significant relationships with coefficients of determination (R2) of 0.7158, 0.7204 and 0.8778 found between grain yield of rice (Y) and PI, PIm and RI values respectively. The highest and the lowest grain yield of rice to a reasonable extent correspond to the higher and the lower productivity index values, respectively. Higher productivity indices explained higher mean grain yield of rice. The productivity indices values decreased with the decrease in grain yield. The grain yield of grain followed productivity index predictions and are hereby recommended as tools of soil productivity assessment in the study area.

Open Access Original Research Article

Effects of Seasonal Flooding on the Quality of Irrigation Water in the Floodplains of Wukari, Taraba State of Nigeria

A. T. Gani, A. Ali, P. I. Agber, A. Christopher

Asian Journal of Soil Science and Plant Nutrition, Page 18-27
DOI: 10.9734/ajsspn/2020/v6i330090

This research was done in order to assess the effects of seasonal flooding on irrigation water quality of the floodplains of Wukari Area of Taraba state. Water samples were collected from five different flood plain locations (Nwuko, Tsokundi, Rafin-Kada, Gidan-Idi and Gindin-Dorowa) in 2016 and 2017. Completely randomized design (CRD) was employed replicated three times. The results obtained were subjected to analysis of variance and means separated using F-LSD test at P ≤ 0.05. The results of the water quality analysis showed that all the determined parameters were significantly different at the different sample locations, except water pH of the year 2016 which was not significantly different at the different sample locations. The results show that the flooded water could be used for irrigation since they were found to be relatively safe and hence required little or no treatment for soluble salts. Water from flooding within the Wukari Floodplains is recommended for supplementary irrigation.

Open Access Original Research Article

Impact of Some Natural Extracts and Nutrients on Different Growth Measurements of Washington Navel Orange Transplants

M. N. A. Al- Sabbagh, H. E. M. El- Badawy, M. H. M. Baiea, S. F. El- Gioushy

Asian Journal of Soil Science and Plant Nutrition, Page 28-46
DOI: 10.9734/ajsspn/2020/v6i330091

This study was conducted throughout the two successive seasons of 2018 and 2019 at Fruit Nursery of Horticulture Department, Faculty of Agriculture at Moshtohor, Benha University Qalubia Governorate, Egypt., to study the impact of some natural treatments, i.e., Algae, Yeast extract, Moringa leaves extract and nutrients as compound that containing both macro (N, P, K) and micro (Fe, Zn, Mn, Fe, Cu) elements and compound containing macro and microelements and some growth regulators. These materials (natural extracts and nutrients) were applied as a foliar spray at different concentrations to evaluate their effect on different growth parameters of one year old Washington navel orange transplants budded on sour orange rootstock. These materials were applied once in a month started from the last week in April to the last week in September .as per the treatment as: Blue-green algae extract (1, 2 and 3 ml/L), Yeast extract (10, 20 and 30 ml/L), Moringa leaves extract (2.5, 5 and 7.5 g/L). Nitro active 20: 20: 20 (commercial grade) (0.5, 1 and 1.5 g/L) and Estima green (commercial grade) (0.5, 1 and 1.5 g/L). The result indicated that the application of Blue-green algae at 3 ml/L  and Estima green at  0.5g/L cause a significant increase in the different growth parameters under this study i.e.,  length, diameter, number of leaves, leaf area, fresh and dry weights. On the contrary, the least values of the abovementioned parameters were usually in concomitant to T1 - control (water sprayed) which ranked statistically last during both seasons of study.

Open Access Original Research Article

Amelioration of Salt Affected Soils and Improvement of Rice and Wheat Yields by Adding Compost and Foliar Spray of Zinc, Potassium and Compost Tea

M. M. Amer, M. S. ELSaka, M. G. Zoghdan, T. H. Khalifa

Asian Journal of Soil Science and Plant Nutrition, Page 47-60
DOI: 10.9734/ajsspn/2020/v6i330092

Amelioration of salt-affected soils requires an integrated management approach, by eco-friendly environmental methods which help improve soil properties, increases crop yield and quality.  Hence, a study was done to evaluate the performances of combined use of compost and foliar application of Zn, K and compost tea. In salt affected soil in the rice-wheat system. A field experiment at El Hamool district, Kafr El Sheikh governorate, Egypt was carried out during 2019 summer for rice and 2020 winter season for wheat. A split plot design with three replicates was performed. The main plots were occupied by levels of compost: C1 (2MgFed.-1), C2 (4MgFed.-1) and C3 (6MgFed.-1), (Fed= 0.41ha). Whereas, sub-plots were foliar application: control (T1), Zinc sulphate (T2), Mono potassium phosphate (T3), compost tea (T4), Zinc + potassium (T5), zinc + compost tea (T6), potassium + CT (T7) and Zn + PK + CT (T8). ECe and SAR) were significant decreased due to application of compost up to C3 (6MgFed.-1) while CEC and organic carbon were significantly increased by compost application, C3(6MgFed.-1). The highest results were recorded  due to use of Zn+PK+CT and compost. The grain and straw yields of both rice and wheat were markedly increased due to application of compost and foliar nutrients. The highest values were noted with the interaction of C3 am and T8.Nitrogen uptake, N use efficiency and N-recovery for both rice and wheat were considerably increased due to application of compost and foliar treatments, the highest performance being observed in C3 coupled with T8.