Open Access Original Research Article

Response of BARI Bush Bean-2 at Different Levels of Nitrogen Fertilization

Basudeb Roy, Alok Kumar Paul, A. T. M. Shamsuddoha

Asian Journal of Soil Science and Plant Nutrition, Page 1-5
DOI: 10.9734/ajsspn/2020/v6i130076

A field experiment was carried out at Sher-e-Bangla Agricultural University Research Farm during the Rabi season of 2008 to investigate the response of BARI Bush Bean-2 at different levels of nitrogen fertilization in respect of various yield components. The soil of the experimental area belongs to the ModhupurTract (AEZ No. 28) which had shallow red brown terrace soil. The selected plot was medium highland and the soil series was Tejgaon. The experiment was laid out in a RCBD design with three replications. The experiment comprises 4 levels of nitrogen in the form urea (0, 40, 80 and 120 kg ha-1 N). The results obtained revealed that different levels of nitrogen showed significant variations on the different parameters studied. Among the different treatments of the study the treatment N80 (80 kg N) gave the highest pod length (11.15 cm), pod diameter (2.93 cm), average single pod weight (5.42 g), total pod weight plant-1 (25.63 g), pod yield plot-1 (1789.58 g) and pod yield hectare-1 (4.37 ton). Thus the findings of the experiment revealed that the use of 80 kg N maximally influence the yield and yield contributing characters of BARI Bush Bean-2 in the selected red brown terrace soil of the Tejgaon series.

Open Access Original Research Article

Effect of Different Sources and Levels of Nitrogen Fertilizers with and without Organic and Bio-fertilizers on Growth and Yield Components of Fennel Plants (Foeniculum vulgare Mill.)

Ibrahim A. Youssef, Mohamed E. Ali, Esmat H. A. Noufal, Safwat A. Ismail, Maha M. E. Ali

Asian Journal of Soil Science and Plant Nutrition, Page 6-14
DOI: 10.9734/ajsspn/2020/v6i130077

Two field experiments were conducted in a newly reclaimed land at a private farm in Village No 8,  El-Minia Governorate, Egypt during two successive seasons (2017/2018) to evaluate the effect of integrated nitrogen fertilizer sources with organic and bio-fertilization on growth and yield components of the fennel plant. The experiment was arranged in a split- split-plot design. The organic treatments (0.0 and 5.0 t compost t/fed.) were arranged in main plots, nitrogen treatments (0.0, 10.0, 50.0 and 80.0 kg N/fed.) as urea or ammonium sulphate were allocated in subplots and bio-fertilizer treatments (without and with) were applied in sub-sub plots. The main effects of compost, nitrogen fertilization and bio-fertilizer showed that the maximum values of plant height, dry weight/plant, number of branches/plant, number of mumble/plant, number of umbellule's/umble and 1000-fruits  weight were attained under 5 t/fed compost,  80 kg N/fed as ammonium sulphate with bio-fertilizer. The results of the interaction among treatments indicated that combined 5.0 t compost /fed with 50 kg N/fed as ammonium sulphate and using bio-fertilizer exhibited the highest values of growth and yield components of fennel. Meanwhile, we can save about 30 kg N/fed by treated fennel plants with organic and bio-fertilizers without any reduction in vegetative growth.

Open Access Original Research Article

Granulometric Evolution of Soils in Response to Their Fertilization with Crushed Rocks: Case Study of the Western Highlands Andosols Treated with Trachyte Powder

J. C. Fopoussi Tuebue, P. Tematio, J. P. Nguetnkam

Asian Journal of Soil Science and Plant Nutrition, Page 15-30
DOI: 10.9734/ajsspn/2020/v6i130078

The present paper aims to highlight the consequence of the fertilization of soils with rock powder on their granulometric evolution. For that purpose, Andosols developed on trachyte in the upper part of the southern limb of the Bambouto Mountains were fertilized with trachyte powder at different rates, activated with water and incubated during nine months. The different treatments generate the granulometric evolution of soils. The increasing of the amounts of trachyte powder as same as the duration of the incubation process makes the evolution more significant. In the detail, that treatment induces the enrichment of the treated soils in silts particles in the expense of clay and sands. At the end of the process, soils with high amounts of sands and silts in general are engendered. The use of rock powder as fertilizers must be gainfully preceded by the acquisition of informations concerning their amounts in organic matters. In case of low amounts, a supply with organic fertilizers would be necessary.

Open Access Original Research Article

Effects of Nitrogen on Yield and Yield Components of Wheat (Triticum aestivum L.) under NPSB Blended Fertilizer in Tsegedie and Welkait Districts Westren Zone Tigray, Ethiopia

Negasi Gebreslasie, Teame Shimgabr, Haile Alene, Nebyu Tsegay, Welesenbet Haftu

Asian Journal of Soil Science and Plant Nutrition, Page 31-38
DOI: 10.9734/ajsspn/2020/v6i130079

Decisions concerning optimum rates of fertilization directly involve fitting some type of rates to yield when several rates of fertilizer are tested. This study was carried out to investigate the effects of nitrogen fertilizer rates yields and yield components of bread wheat and determine optimum rate of N. The field experiment was carried out in 2016 and 2017 main cropping season at Tsegedie and Welkait districts in Western Tigray Regional State, Ethiopia. The experiment consists of seven levels of nitrogen (0, 23, 46, 69, 99, 115 and 138 kg ha-1) arranged in randomized completed block design with three replications. Nitrogen was applied splits, half at planting and remaining at tiller stage. NPSB was applied as basal application for all experimental plots except the negative control. Soil samples were collected before planting for analysis of some selected physicochemical properties. The soil properties of the experimental sites of the two districts varied in most of the soil properties. Application of nitrogen significantly influenced grain yield and yield components of wheat in both study sites. The highest grain yield 3926 kg ha-1 and 2131 kg ha-1 were obtained from 138 kg N ha-1 and 115 kg N ha-1 at the study sites of Tsegedie and Welkait districts, respectively. Highest marginal rate of returns were however obtained at nitrogen rates of 46 kg ha-1 and 23 kg ha-1 at Tsegedie and Welkait districts, respectively. Hence, it could be concluded that the use of N at 46 kg ha-1and 23 kg ha-1 with 100 kg NPSB fertilizer could give optimum bread wheat yield at Tsegedie and Welkait districts, respectively.

Open Access Original Research Article

The Effect of Si Fertilizer and Si Fertilizer with Straw Return on Soil K Availability and Grain Yield on Spring Maize (Zea mays L) in Northeast China

Mabagala Frank Stephano, Yuhui Geng, Meiling Zhang

Asian Journal of Soil Science and Plant Nutrition, Page 39-45
DOI: 10.9734/ajsspn/2020/v6i130080

Aims: To investigate the effect of silicon (Si) fertilizer and Si fertilizer with straw return in potassium (K) and maize grain yield.

Methods: In 2018 and 2019, two field experiments were established in Nong’an county, Jilin province. Four treatments were arranged in a randomized block design: JS3 (straw return + Si), WS3 (no straw return + Si), JS0 (straw return + no Si) and WS0 (no straw return + no Si).

Results: In comparison with WS3, the average soil available K for WS0 was 22.1% lower. Similarly, compared with JS3, the average soil available K for WS3 was even decreased by 3.1%. The plots amended with Si fertilizer (15.9% WS3) significantly increased K uptake than that of WS0, and the total uptake of K under JS3 increased by 7.5% compared with that under WS3. The total dry matter and grain yield were significantly higher under WS3, which increased by 6.5% and 4.8% respectively, and JS3 significantly outperformed WS3 by 2.9% and 1.3% for total dry matter and grain yield.

Conclusions: Our results indicate that the application of Si fertilizer improves K availability, uptake and crop yield, and the use of Si fertilizer with straw return sustainably improves K release to meet crop requirements while increasing crop productivity.