Phosphate fertilization regulates arbuscular mycorrhizal symbiosis in roots of soybean (Glycine max L.) cultivars in a humid tropical soil

The effect of phosphate fertilization on arbuscular mycorhizal symbiosis and grain yields of soybean cultivars was investigated on P deficient soil. A two-year field study (2017-2018) consisting of two soybean cultivars (TGx 1448-2E and TGx 1440-1E) and three phosphate rates [0, 20 and 40 kg P2O5 ha-1) was laid out in a randomized complete block design with three replications. The results showed that P fertilization significantly (p < 0.001) reduced AMF root colonization of both cultivars in the two cropping years. The arbuscular, vesicular, internal hyphae and total colonization in the root cortex of the soybean cultivars were significantly (p < 0.001) reduced with high P (40 kg) application. However, moderate P (20 kg) promote AMF symbiosis in roots of ‘TG x 1448-2E‘. Dry mass (root and shoot), P uptake and grain yield of the soybean cultivars were significantly (p < 0.001) increased with increasing P ferilization. There was a strong linear relationships between root colonization and total dry matter mass (r = 0.81), P uptake (r = 0.81) and grain yield (r = 0.85). Thus, it could be concluded that moderate P fertilizer application is needed to promote mycorrhizal symbiosis in soybean and sustainable crop production in humid tropical soil.

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Effects of Municipal Wastewater Irrigation on Yield and Fertilizer Requirement of Wheat (Triticum aestivum L.) in Bangladesh

The Agriculturists ◽

10.3329/agric.v14i1.29096 ◽

2016 ◽

Vol 14 (1) ◽

pp. 01-14 ◽

Cited By ~ 1

Author(s):

M A Mojid ◽

G C L Wyseure ◽

S K Biswas

Keyword(s):

Triticum Aestivum ◽

Grain Yield ◽

Fresh Water ◽

Biomass Production ◽

Crop Production ◽

Municipal Wastewater ◽

Biomass Yield ◽

Block Design ◽

Fertilizer Requirement ◽

Raw Wastewater

Due to increasing scarcity of fresh water, use of unconventional water source (e.g., wastewater) in irrigation has now become important. However, inclusive information on the effects of wastewater on crop production and soil health is necessary for such intervention. This study was designed to evaluate these effects by demonstrating the contribution of municipal wastewater (hereafter called wastewater) on yield and nutrient requirement of wheat (Triticum aestivum L.) cv Shatabdi. Five irrigation treatments - I1, I2, I3, I4 and I5 were tested in a Randomized Complete Block Design (RCBD) with three replications during November-March of 2007-2008, 2008-2009, 2009-2010 at the experimental field of the Bangladesh Agricultural University, Mymensingh. The treatments I2-I5 consisted of blended wastewater and I1 of fresh water (control). The ratio of wastewater to total irrigation water was 0.25, 0.50, 0.75 and 1.0 in I2, I3, I4 and I5, respectively. Wheat was cultivated with three irrigations and recommended doses of fertilizer in three consecutive years. Wastewater contained nitrogen (N), phosphorus (P) and potassium (K) @ 17.5, 3.7 and 10.3 mg/L, respectively, and irrigation by raw wastewater (I5) contributed 19.1, 15.1 and 21.7% of the recommended N, P and K, respectively. Biomass yield increased with increasing fraction of wastewater in irrigation. Grain yield increased for the wastewater fraction of 0.50 - 0.75 in irrigation but decreased when irrigation was applied by raw wastewater. Excess fertilizer (under I5) boosted up growth of wheat, but did not contribute to the grain yield. Number of grains per spike; and grain, straw and biological yields significantly (p = 0.05) increased due to the contribution of wastewater. Wastewater significantly improved grain and biomass production, with the largest value obtained in I4 (4.61 t/ha grain yield and 11.36 t/ha biomass yield). Raw wastewater in combination with recommended fertilizer doses caused over-fertilization that contributed only in biomass production but not in grain production of wheat and irrigation by wastewater substantially reduced fertilizer requirement of wheat.The Agriculturists 2016; 14(1) 01-14

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Response of Chickpea (Cicer aritienum L.) to Sulphur and Zinc Nutrients Application and Rhizobium Inoculation in North Western Ethiopia

Turkish Journal of Agriculture - Food Science and Technology ◽

10.24925/turjaf.v8i10.2040-2048.3414 ◽

2020 ◽

Vol 8 (10) ◽

pp. 2040-2048

Author(s):

Beza Shewangizaw Woldearegay ◽

Anteneh Argaw ◽

Tesfaye Feyisa ◽

Birhan Abdulkadir ◽

Endalkachew Wold-Meskel

Keyword(s):

Crop Production ◽

Block Design ◽

P Uptake ◽

Sub Saharan Africa ◽

Limiting Factor ◽

Rhizobium Inoculation ◽

Combined Application ◽

Nodule Volume ◽

P Application ◽

Sub Saharan

In sub-Saharan Africa, multiple plant nutrients deficiency besides nitrogen (N) and phosphorus (P) is a major growth-limiting factor for crop production. As a result, some soils become non-responsive for Rhizobium inoculation besides P application. Based on the soil test result, the soil of Experimental sites had low organic matter (OM), nitrogen (N), phosphorus (P), sulphur (S) and zinc (Zn)[xy1]. Hence, an experiment was carried out on-farm at Gondar Zuria woreda in Tsion and Denzaz Kebeles to evaluate the effect of Rhizobium inoculation, S and Zn application on yield, nodulation, N and P uptake of chickpea. The experiment included twelve treatments developed via factorial combination of two level of inoculation (Rhizobium inoculated, un-inoculated), three level of S (0, 15, 30 kg Sulphur ha-1) and two levels of Zn (0, 1.5 kg Zinc ha-1). The treatment was laid out in randomized complete block design with three replications. Results showed that the highest mean nodule number (15.3) and nodule volume (1.3 ml plant-1) over locations were obtained with Rhizobium inoculation integrated with 15 kg S and 1.5 kg Zn ha-1 which resulted in 37.8% and 116.7% increment over the control check, respectively. It was also observed that combined application of Rhizobium and 30 kg S ha-1 caused the highest (6.7) mean nodulation rating and seed yield (1775.5 kg ha-1) over locations which resulted in 86.1% and 28 % increase over the control check, respectively. Moreover, this treatment improved P use efficiency of chickpea. On the bases of observed result, it can be concluded that the response of chickpea to Rhizobium and P application can be improved by S application and Rhizobium inoculation with application of 30 kg S ha-1 with recommended rate of P and starter N is recommended for chickpea production at the experimental locations in Gonder Zuria Woreda.

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Planting Density and Soybean (Glycine max L.) Cultivars Effects on Yield Components in the Amazon

Journal of Agricultural Studies ◽

10.5296/jas.v8i3.16277 ◽

2020 ◽

Vol 8 (3) ◽

pp. 63

Author(s):

Priscila Pereira Sacramento ◽

Letícia Cunha da Hungria ◽

Jamil Chaar El-Husny ◽

Luis De Souza Freitas

Keyword(s):

Grain Yield ◽

Plant Height ◽

Yield Components ◽

Block Design ◽

Planting Density ◽

Maximum Height ◽

Soybean Cultivars ◽

Linear Behavior ◽

Randomized Block Design ◽

Glycine Max L

The aim of this study was to evaluate the influence of planting density and cultivar of soybean on yield components in the southeast Amazon. The experiment was carried out in an Oxisol, with a randomized block design in a 2 x 4 factorial scheme. The treatments were two soybean cultivars (BRS 9090 RR and BRS 8990 RR) and four planting densities (13, 15, 18 and 20 plants m-1), with three replications. First pod insertion height (IFP), plant height (H), number of pods per plant (NPP), grain yield (Y) and weight of 100 grains (W100) were evaluated. The insertion height of the first pod showed a tendency of increase with the increment of plants per linear meter for cultivar BRS 8990 RR, different of the behavior observed for the cultivar BRS 9090 RR, which only showed difference when the density of 300.000 plants ha-1 was tested. For plant height, among soybean cultivars, there was only difference in D400, with BRS 8990 RR showing a maximum height of 83.3 cm, 21% higher than BRS 9090 RR. When evaluated under D350, BRS 8990 RR showed an increase of 13% in the number of pods compared to BRS 9090 RR. Both cultivars showed linear behavior for the grain yield, increasing according the plant population, with the highest grain yield obtained under the density of 400.000 plants ha-1 (4527.3 kg ha-1). The weight of 100 grains was not influenced by any variation factor.

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Interference of Volunteer Corn on Soybean Grown under Cerrado Conditions

Planta Daninha ◽

10.1590/s0100-83582019370100099 ◽

2019 ◽

Vol 37 ◽

Author(s):

L.B.P. BRAZ ◽

G.B.P. BRAZ ◽

S.O. PROCÓPIO ◽

C.J.B. FERREIRA ◽

A.G. SILVA ◽

...

Keyword(s):

Grain Yield ◽

Plant Height ◽

Dry Matter ◽

Block Design ◽

Grain Weight ◽

Soybean Plant ◽

Corn Hybrids ◽

Soybean Cultivars ◽

Volunteer Corn ◽

Corn Plants

ABSTRACT: The presence of volunteer corn plants in coexistence with soybean has been increasing since the introduction of glyphosate-resistant corn hybrids. This study aimed to evaluate the effect of interference of volunteer RR® corn plants at different densities on two RR® soybean cultivars. The experiment was conducted in Rio Verde, GO. The experimental design was a randomized block design in a factorial arrangement (2×5), with four replications. Factor A consisted of two soybean cultivars (BMX Potência RR® and M8210 IPRO®), while five densities of RR® corn plants per m2 (0, 4, 8, 12, and 16) were adopted for factor B. The following evaluations were carried out for soybean: plant height, SPAD index, percentage of interrow closure, shoot dry matter, first pod height, number of pods per plant, 100 grain weight, and grain yield of grains. Soybean plant height presented a linear and positive relationship with the increased density of corn plants. Shoot dry matter, 100 grain weight, number of pods per plant, and grain yield were negatively affected by the increased density of volunteer corn infestation. The soybean cultivar M8210 IPRO® was more susceptible to corn plant interference when compared to the cultivar BMX Potência RR®.

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Subdoses of Dicamba Herbicide on Yield Componentes in Function of the Soybean Growth Stage

Journal of Agricultural Science ◽

10.5539/jas.v11n6p407 ◽

2019 ◽

Vol 11 (6) ◽

pp. 407

Author(s):

T. Schneider ◽

M. A. Rizzardi ◽

A. P. Rockenbach ◽

S. T. Peruzzo

Keyword(s):

Grain Yield ◽

Broad Spectrum ◽

Growth Stage ◽

Block Design ◽

Rio Grande ◽

Growth Stages ◽

Rio Grande Do Sul ◽

Herbicide Residues ◽

Soybean Cultivars ◽

Randomized Complete Block Design

Soybean cultivars without tolerance can suffer injury from exposure to tank herbicide residues. This study aimed at assessing the potential effects of the broad spectrum herbicide dicamba on sensitive soybean during its vegetative and reproductive stages. The trial was performed in a randomized complete block design with four replications. Six rates (1.4, 2.8, 5.6, 11.2, 16.8 and 28.0 g ae ha-1) of dicamba were applied at two soybean growth stages (V3 and R2). The soybeans were planted in Passo Fundo, Rio Grande do Sul state in 2015/16 agricultural year. The dicamba induced symptoms of soybean phytotoxicity showed a steady rise at all the assessment times. The soybean decreased in height as the subdose of the herbicide increased. Dicamba was observed to negatively affect the number of nodes alone, during the V3 and R2 stages. The grain yield was adversely affected at the 28.0 g ae ha-1 subdose, in the V3 application stage, and in response to the 16.8 and 28.0 g ae ha-1 subdoses in the R2 stage.

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Response of Chickpea (Cicer aritienum L.) to Sulphur and Zinc Nutrients Application and Rhizobium Inoculation in North Western Ethiopia

10.21203/rs.2.18531/v1 ◽

2019 ◽

Cited By ~ 1

Author(s):

Beza Shewangizaw ◽

Anteneh Argaw ◽

Tesfaye Feyisa ◽

Endalkachew Wold-Meskel ◽

Birhan Abdulkadir

Keyword(s):

Crop Production ◽

Block Design ◽

P Uptake ◽

Sub Saharan Africa ◽

Limiting Factor ◽

Combined Application ◽

Nodule Volume ◽

Use Efficiency ◽

P Application ◽

Sub Saharan

Abstract In sub-Saharan Africa, multiple plant nutrients deficiency besides N and P is a major growth-limiting factor for crop production. As a result, some soils become non-responsive for Rhizobium inoculation besides P application. Based on the soil test result, the soil of experimental sites had low OM, N, P, S and Zn. Hence, an experiment was carried out on-farm, during 2016/17 growing season, at Gondar Zuria woreda in Tsion and Denzaz Kebeles to evaluate the effect of Rhizobium inoculation, S and Zn application on yield, nodulation, N and P uptake of chickpea. The experiment included twelve treatments developed via factorial combination of two level of inoculation (Rhizobium inoculated, un-inoculated), three level of S (0, 15, 30 kg Sulphur ha-1) and two levels of Zn (0, 1.5 kg Zinc ha-1). The treatment was laid out in randomized complete block design with three replications. Results showed that the highest mean nodule number (15.3) and nodule volume (1.3 ml plant-1) over locations were obtained with Rhizobium inoculation integrated with 15 kg S and 1.5 kg Zn ha-1 which resulted in 37.8% and 116.7% increment over the control check, respectively. It was also observed that combined application of Rhizobium and 30 kg S ha-1 caused the highest (6.7) mean nodulation rating and seed yield (1775.5 kg ha-1) over locations which resulted in 86.1% and 28 % increase over the control check, respectively. Moreover, this treatment improved P use efficiency of chickpea. On the bases of observed result, it can be concluded that the response of chickpea to Rhizobium and P application can be improved by S application and Rhizobium inoculation with application of 30 kg S ha-1 with recommended rate of P and starter N is recommended for chickpea production at the experimental locations in Gonder Zuria Woreda.

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Phosphate fertilization with organomineral fertilizer on corn crops on a Rhodic Khandiudox with a high phosphorus contente

Pesquisa Agropecuária Brasileira ◽

10.1590/s1678-3921.pab2019.v54.00434 ◽

2019 ◽

Vol 54 ◽

Cited By ~ 1

Author(s):

Marco André Grohskopf ◽

Juliano Corulli Corrêa ◽

Dirceu Maximino Fernandes ◽

Vinícius de Melo Benites ◽

Paulo César Teixeira ◽

...

Keyword(s):

Grain Yield ◽

Block Design ◽

Poultry Litter ◽

Mineral Fertilizer ◽

Efficiency Index ◽

Available P ◽

Control Treatment ◽

P Content ◽

Phosphate Fertilization ◽

Crop Cycle

Abstract: The objective of this work was to evaluate the nutritional content and grain yield of three corn (Zea mays) crops in response to phosphate fertilization with an organomineral fertilizer based on poultry litter or a mineral fertilizer, when cultivated on a Rhodic Khandiudox with a high initial phosphorus content. The experiment was carried out in the field in a randomized complete block design in a 2×4+1 factorial arrangement (organomineral or mineral fertilizer × 20, 40, 60, or 80 kg ha-1 P + control treatment with no phosphate fertilization), with four replicates each. Available P and total organic carbon (TOC) contents in the soil at the end of the crop cycle, plant tissue P contents, and grain yield were determined. The agronomic efficiency index (AEI) was estimated based on corn grain yield. After three harvests, soil available P and TOC contents did not increase significantly due to fertilizer use, but were directly related to P doses. In a Rhodic Khandiudox with a high initial P content, the use of an organomineral fertilizer based on poultry litter promotes higher corn crop yield, with an AEI 20% higher than that of the mineral fertilizer.

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Enhancing rice yield in acidic soil through liming and fertilizer management

Journal of the Bangladesh Agricultural University ◽

10.3329/jbau.v16i3.39393 ◽

2018 ◽

Vol 16 (3) ◽

pp. 357-365

Author(s):

Syeda Ariana Ferdous ◽

Mohammad Noor Hossain Miah ◽

Mozammel Hoque ◽

Sazzad Hossain ◽

Ahmed Khairul Hasan

Keyword(s):

Grain Yield ◽

Crop Production ◽

Growth Parameters ◽

Block Design ◽

Fertilizer Application ◽

Chemical Fertilizer ◽

Acidic Soil ◽

Growth And Yield ◽

Treatment Combination ◽

Four Levels

The effect of lime and fertilizer application, as the management of soil acidity, on the growth and yield of rice cv. BRRI dhan50 was investigated during Aman rice season at the Agronomy Field Laboratory of Sylhet Agricultural University, Bangladesh. The experiment was consisted of two factors namely lime and fertilizer. There were four levels of lime (0, 0.50, 1.00, and 1.50 t ha–1 of CaCO3.MgCO3) and three levels of fertilizers (control, FYM @ 10 t ha–1, and chemical fertilizer @ 100-30-42-4-3-0.4 kg ha–1 of N-P-K-Ca-S-Zn). The experiment was laid out in a randomized complete block design with three replications where the unit plot size was 4.0 m x 2.5 m. Growth parameters, yield components and yield of BRRIdhan 50 rice increased with increasing lime rate in association of fertilizer in acidic soil. The highest grain yield (2.90 t ha–1) was recorded from the application of 1.50 t ha–1 lime and the lowest (2.06 t ha–1) was from control (0t ha–1), irrespective of fertilizer. On the other hand, the best effect of fertilizers on grain yield (3.08 t ha–1) was found with the application of FYM @ 10 t ha–1 and the lowest yield (1.59 t ha–1) was in control. The treatment combination of lime 1.50 t ha–1 and FYM (@ 10 t ha–1 produced the highest grain yield (3.60 t ha–1), which was followed by treatment combination of lime 1.50 t ha–1 and chemical fertilizer @ 100-30-42-4-3-0.4 kg ha–1 of N-P-K-Ca-S-Zn (3.28 t ha–1). Additionally, application of lime and FYM improved the soil fertility and properties of acidic soil for crop production by increasing the pH, organic matter and availability of some essential nutrients. From the study, it was indicated that both FYM and lime could affect to enhance the grain yield of rice in acidic soil. J. Bangladesh Agril. Univ. 16(3): 357–365, December 2018

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Defoliation percentage in two soybean cultivars at different growth stages

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v19n6p567-573 ◽

2015 ◽

Vol 19 (6) ◽

pp. 567-573 ◽

Cited By ~ 4

Author(s):

Cláudio A. da S. Glier ◽

José B. Duarte Júnior ◽

Gabriel M. Fachin ◽

Antonio C. T. da Costa ◽

Vandeir F. Guimarães ◽

...

Keyword(s):

Grain Yield ◽

Block Design ◽

Growth Stages ◽

Production Potential ◽

Soybean Cultivars ◽

Randomized Block Design ◽

Different Levels ◽

Different Growth Stages ◽

Phenological Phases

ABSTRACT The objective of this study was to evaluate the agronomic variables due to the effects of different levels of defoliation in the phenological phases of two soybean cultivars. The experiment was conducted during the 2011/2012 season, in a randomized block design with three replicates, in a 2 x 4 x 5 factorial scheme. Two cultivars were exposed to defoliations of 0, 25, 50, 75 and 100% at the stages of V4, V9, R3 and R5. The cultivar 'NK 7059RR' showed less sensitivity to defoliation than the cultivar 'IN 4990RG'. 25% defoliation levels reduced the yield of the cultivar 'IN 4990RG', while levels of 75 and 100% reduce the number of grains per pod in both cultivars. The defoliation performed in the V4 stage lead to lower grain yield than defoliation in V9. The most sensitive stages to defoliation are R3 and R5, where there is a greater reduction in the production potential of soybeans.

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Performance Evaluation of BRRI Power Weeder for Low Land Rice (Oryza sativ L.) Cultivation

The Agriculturists ◽

10.3329/agric.v15i1.33427 ◽

2017 ◽

Vol 15 (1) ◽

pp. 40-48

Author(s):

AKM Saiful Islam ◽

MT Islam ◽

M Sh. Islam ◽

AKM Lutfor Rahman ◽

MA Rahman

Keyword(s):

Grain Yield ◽

Weed Control ◽

Crop Production ◽

Block Design ◽

Rice Variety ◽

Field Performance ◽

Field Capacity ◽

Control Device ◽

Effective Field ◽

Hand Weeding

Mechanical intervention in crop production is increasing rapidly in Bangladesh. Researchers are finding ways to manage weeds in rice field using suitable mechanical devices instead of conventional hand weeding. A study was conducted to evaluate the field performance of BRRI (Bangladesh Rice Research Institute) power weeder compared to BRRI weeder and hand weeding in the farmers field at Rashidpur in Mithapukur upazila under Rangpur district during boro season of 2014-15. Three treatments: T1 = BRRI weeder (BW), T2 = BRRI power weeder (BPW) and T3 = Hand weeding (HW) were used in the experiment. The experiment was carried out in a randomized complete block design (RCBD) and replicated in four farmers plots. Rice variety BRRI dhan28 was selected for the experiment. The effective field capacity of BW and BPW was found to be 0.06 and 0.09 ha hr-1, respectively. The weeding efficiency was the highest in HW (92%), followed by BPW (78%) and BW (73%). It was found that BW damaged the lowest number of plants (9%) compared to BPW (11%) during weeding operation, although the damaged plants recovered after a few days. BW and BPW reduced 74 and 85% of labor requirement in weeding operation compared to HW. The highest weeding cost was involved in HW (Tk. 4287 ha-1) compared to BW (Tk. 1103 ha-1) and BPW (Tk. 950ha-1). Weed control methods exerted insignificant effect on grain yield. BRRI power weeder and BRRI weeder reduced weeding cost, enhanced weed control and improved the labor efficiency without sacrificing grain yield. The highest BCR was obtained in BPW (1.22) followed by BW (1.16) and HW (1.11). BRRI power weeder and BRRI weeder appeared to be economic, easy and also environmentally safe weed control device in low land rice cultivation. The Agriculturists 2017; 15(1) 40-48

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