scholarly journals Influence of Soybean (Glycine max. L) Sowing Methods and Seed Rate on Nitrogen Accumulation in Soil

2020 ◽  
pp. 321-327
Author(s):  
N. Swapna ◽  
Firdouz Shahana ◽  
T. Prabhakar Reddy ◽  
M. Venkataiah
Keyword(s):  
Glycine Max ◽  
Seed Yield ◽  
Root Nodules ◽  
Research Station ◽  
Nitrogen Accumulation ◽  
Available Nitrogen ◽  
Available N ◽  
Seed Rate ◽  
Glycine Max L ◽  
The Impact

The soybean (Glycine max L.) is a crop with a high demand for nitrogen (N). The root nodules that form in soybeans can fix atmospheric N effectively. To quantify available N in the soil a field experiment was conducted at Regional Sugarcane and Rice Research Station, Rudrur to evaluate the impact of varying sowing methods and seed rates on yield of soybean and available N in soil after harvest of crop. Planting methods and seed rates significantly influenced seed yield and available nitrogen in the soil.  Broad Bed Furrow (BBF) method with seed rate 50 kg ha-1 recorded significantly higher number of pods per plant (105) and mean seed yield of 1891 kg ha-1 over flatbed with 50 kg seed rate ha-1 (1757 kg ha-1) respectively. Broad Bed and Furrow method of planting recorded a significantly higher live root nodules and available nitrogen in soil with 50 kg seed rate ha-1. Seed rate of 75 kg/ha recorded highest available N in soil on broad bed and furrow method. Broad Bed Furrow (BBF) method with seed rate 50 kg ha-1 recorded highest net returns (₹ 53,233 ha-1) and highest B:C ratio (2.72) over flat bed of planting.

scholarly journals Impact of the foraging activity of Apis mellifera adansonii Latreille (Hymenoptera: Apidae) and Bradyrhizobium fertilizer on pollination and yield components of Glycine max L. (Fabaceae) in the field

2015 ◽  
Vol 3 (2) ◽  
pp. 64
Author(s):  
Stephanie Beaudelaine Kengni ◽  
Fernand-Nestor Tchuenguem Fohouo ◽  
Albert Ngakou
Keyword(s):  
Glycine Max ◽  
Apis Mellifera ◽  
Seed Yield ◽  
Plant Biomass ◽  
Root Nodules ◽  
Soybean Plant ◽  
Synergistic Activity ◽  
Apis Mellifera Adansonii ◽  
The Impact ◽  
Number Of Seeds

<p>To determine the impact of <em>Apis mellifera adansonii</em> and <em>Bradyrhizobium</em> on pod and seed yields of <em>Glycine max</em>, field trials were carried out during 2012 and 2013 cropping seasons. Hence, 120 to 25658 flowers were labeled each year and divided into five treatments, differentiated according to whether plots were inoculated with <em>Bradyrhizobium</em> or not, or plants were protected from insects activities or not and the last treatment with flowers isolated then opened only to <em>A. m. adansonii</em>. The effects of <em>Bradyrhizobium</em> on nodulation, plant biomass and seed yield, as well as the foraging behavior of <em>A. m. adansonii</em> on flowers, the number of seeds per pod and the normal seeds' rate were evaluated. Results indicate that <em>Bradyrhizobium</em> significantly increased the number of flowers (P&lt;0.001), root nodules (P&lt;0.0001), plant biomass (P&lt;0.0001), pod and seeds yields in inoculated plots. <em>A. m. adansonii</em> foraged on <em>G. max</em> flowers from 09.00 a.m. to 16.00 p.m. and throughout the whole blooming period. This insect intensely harvested only nectar. By comparing the yields of unprotected flowers to those of flowers isolated then opened to <em>A. m. adansonii</em>, 35.85% increase fructification index, and 73.09% increase in the number of seeds per pod due to this bee were recorded. The synergistic activity of insects and <em>Bradyrhizobium</em> increased the number of seeds per pod by 32.16% and the percentage of normal seeds by 32.87%. Our results reveal that inoculation of soybean plant at sowing with <em>Bradyrhizobium</em> and installation of hives close to the field could be recommended for a sustainable pods and seed yield improvement of this crop.</p>

INFLUENCE OF SINGLE STRAINS AND A COMMERCIAL MIXTURE OF Bradyrhizobium japonicum ON GROWTH, NITROGEN ACCUMULATION AND NODULATION OF TWO EARLY-MATURING SOYBEAN CULTIVARS

1988 ◽  
Vol 68 (2) ◽  
pp. 411-418 ◽  
Author(s):  
L. D. BAILEY
Keyword(s):  
Glycine Max ◽  
Soil Temperature ◽  
Bradyrhizobium Japonicum ◽  
Nodule Formation ◽  
Growth Stages ◽  
Nitrogen Accumulation ◽  
Plant Nitrogen ◽  
Commercial Mixture ◽  
Early Maturing ◽  
Glycine Max L

Seven single strains and a commercial mixture of Bradyrhizobium japonicum were evaluated in association with two early-maturing Canadian soybean (Glycine max (L.) Merrill) cultivars, Maple Presto and Maple Amber. Inoculated and uninoculated plants were grown in pails outdoors. Soil temperature at 15 cm depth was monitored throughout the experiment. At the V2, V3, R2 and R4 growth stages, whole plants were removed from the pails. Nodules were counted and weighed; roots and tops were separated, weighed and analyzed for total nitrogen. Bradyrhizobium japonicum strains 61A148, 61A196, 61A194 and 61A155 were similar in effectiveness, but superior to strains 61A124a, 61A118b, 61A101c and the commercial mixture in earliness of nodule formation, number and weight of nodules per plant, and in promoting greater root and top growth and plant nitrogen accumulation. There were indications that soil temperature may have affected nodulation. Maple Amber showed the greater potential for symbiotic nitrogen fixation. This cultivar supported earlier nodulation, had a greater number of nodules, accumulated more nitrogen in the tops and roots and had greater growth than Maple Presto.Key words: Soybean, Glycine max (L.) Merrill, soil temperature, soybean growth stages, Bradyrhizobium, nodulation

scholarly journals Comparison of the depth of placement of lime nitrogen on growth, N2fixation activity, seed yield and quality of soybean (Glycine max(L.) Merr.) plants

2006 ◽  
Vol 52 (4) ◽  
pp. 453-463 ◽  
Author(s):  
Tewari Kaushal ◽  
Masaru Onda ◽  
Sayuri Ito ◽  
Akihiko Yamazaki ◽  
Hiroyuki Fujikake ◽  
...  
Keyword(s):  
Glycine Max ◽  
Seed Yield ◽  
Yield And Quality ◽  
Glycine Max L

scholarly journals Simulated mesotrione drift followed by glyphosate, imazethapyr, bentazon or glyphosate plus chlorimuron in soybean

2009 ◽  
Vol 89 (2) ◽  
pp. 265-272
Author(s):  
L. R. Brown ◽  
D. E. Robinson ◽  
K. Chandler ◽  
C. J. Swanton ◽  
R. E. Nurse ◽  
...  
Keyword(s):  
Glycine Max ◽  
Key Words ◽  
Plant Height ◽  
Seed Yield ◽  
Plant Density ◽  
Dry Weight ◽  
Shoot Dry Weight ◽  
Glycine Max L ◽  
Herbicide Drift

There have been anecdotal accounts of increased crop sensitivity due to herbicide drift followed by an in-crop herbicide. An experiment was conducted from 2005 to 2007 at Elora, Ridgetown, and Woodstock, Ontario, to determine the effects of simulated mesotrione drift followed by in-crop applications of glyphosate, imazethapyr, bentazon and glyphosate plus chlorimuron on glyphosate-resistant soybean [Glycine max (L.) Merr.] visual injury, plant height, plant density, shoot dry weight, and seed yield. As the rate of simulated mesotrione drift increased, there was an increase in soybean injury and a decrease in shoot dry weight, height, and yield. Simulated mesotrione drift followed by bentazon resulted in synergistic responses in injury shortly after application in some environments. This increase in injury was transient, with no synergistic responses in density, shoot dry weight, and yield. In contrast, antagonistic responses were observed when glyphosate, imazethapyr, or glyphosate plus chlorimuron were applied after simulated mesotrione drift in some environments. Further research is required to develop a better understanding of the interactions of drift followed by the application of an in-crop herbicide. Key words: Bentazon, chlorimuron, glyphosate, imazethapyr, mesotrione, synergism

scholarly journals Las asociaciones maíz-leguminosas: su efecto en la conservación de la fertilidad de los suelos.

2016 ◽  
Vol 8 (1) ◽  
pp. 65
Author(s):  
Claro Alfonso ◽  
Mario Riverol ◽  
Pedro Porras ◽  
Eduardo Cabrera ◽  
Juan Llanes ◽  
...  
Keyword(s):  
Seed Yield ◽  
Green Manure ◽  
Nutrient Balance ◽  
Research Station ◽  
Velvet Bean ◽  
Beneficial Effects ◽  
Agronomic Practices ◽  
Fallow Soil ◽  
The Impact ◽  
Soil Losses

During a three-year period from 1993 to 1995, experiments were conducted to determine the effect of the maize-legume associations on soil fertility and their impact upon the yields of subsequent bean crops. We studied under Research Station conditions on an Oxisol soil and on drainage plots in Ultisol soil, the following associations: for the agro-ecosystem South of Havana oxisol we considered maize + caupi; maize + velvet bean; maize + canavalia; maize + crotalaria; maize + sesbania. While for the agro-ecosystem of San Juan and Martinez (Utisol) treatments were : maize, maize + caupi; maize + velvet bean; maize + canavalia; millet and fallow soil. The results showed that the intercropping of maize with legume was beneficial on the evaluated soil properties, and that, if combined with minimum tillage in the Oxisols , they complement the beneficial effects of both agronomic practices of that type of soil. The impact of these legume-maize-treatments in the subsequent cultivation of beans was significant on seed yield compared to the obtained after maize alone. The nutrient balance was favored by the recycling of nutrients from green manure left by the legume-maize treatments used. The recycling if nutrients made possible a nitrogen reduction of 25%, and one of 100% for P2O5 and K2O. In the Ultisol soils drainage plots where established, in addition to the mentionated effects, we observed an anti-erosive impact of the treatments which diminished soil losses as compared to maize alone and fallow soil.

scholarly journals Identification of Soybean Yield QTL in Irrigated and Rain-Fed Environments

Agronomy ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 2207
Author(s):  
Geung-Joo Lee ◽  
Sung-Woo Lee ◽  
Tommy E. Carter ◽  
Grover Shannon ◽  
Roger Boerma
Keyword(s):  
Abiotic Stress ◽  
Glycine Max ◽  
Quantitative Trait Loci ◽  
Ssr Markers ◽  
Seed Yield ◽  
Quantitative Trait ◽  
Genomic Region ◽  
Favorable Alleles ◽  
Yield Variation ◽  
Glycine Max L

Drought is the primary abiotic stress that limits yield of soybean (Glycine max (L.) Merr.). The study aimed to identify yield-related quantitative trait loci (QTLs) in soybeans using a population of 160 F4-derived lines from ‘Hutcheson’ × PI 471938 crosses, which were cultivated under rain-fed and irrigated conditions. Seed yield was determined based on a total of nine irrigated and five rain-fed environments over two years. Twenty and twenty-seven SSR markers associated with yield (P ≤ 0.05) were identified in the irrigated and rain-fed environments, respectively. Four markers accounted for 22% of the yield variation in the irrigated environments (IR-YLD) and five markers explained 34% of the yield variation in the rain-fed environments (RF-YLD). Two independent IR-YLD and RF-YLD QTLs on chromosome (Chr) 13 (LG-F) were mapped to the Satt395-Sat_074 interval (4.2 cM) and near Sat_375 (3.0 cM), which explained 8% (LOD = 2.6) and 17% (LOD = 5.5) of the yield variation, respectively. The lines homozygous for the Hutcheson allele at the IR-YLD QTL linked to Sat_074 averaged 100 kg ha−1 higher yield than the lines homozygous for the PI 471938 allele. At two independent RF-YLD QTLs on Chr 13 and Chr 17, the lines homozygous for the PI 471938 alleles were 74 to 101 kg ha−1 higher in yield than the lines homozygous for the Hutcheson alleles. Three of the five significant SSR markers associated with RF-YLD were located in a genomic region known for canopy-wilting QTLs, in which the favorable alleles were inherited from PI 471938. The identification of yield-QTLs under the respective rain-fed and irrigated environments provides knowledge regarding differential responses of yield under different irrigation conditions, which will be helpful in developing high-yielding soybean cultivars.

scholarly journals Evaluation of Biomass Yield and Nutritional Composition of Soybean (Glycine Max (L.)Merrill) Varieties Grown in Low Land Areas of Eastern Amhara, Ethiopia

2020 ◽  
Author(s):  
Abito Asres ◽  
Solomon Tiruneh
Keyword(s):  
Glycine Max ◽  
Seed Yield ◽  
Dry Matter ◽  
Biomass Yield ◽  
Block Design ◽  
Nutritional Composition ◽  
Dry Matter Yield ◽  
Combined Analysis ◽  
Strong Evaluation ◽  
Glycine Max L

The experiment was conducted in three locations Jari, Chefa and Sirinka of Eastern Amhara to select the best performing varieties, in terms of biomass yield, chemical composition, haulm yield, seed yield and other agronomic characteristics of Glycine max (L.) Merrill grown under the rain- fed condition of lowland areas of Eastern Amhara in a randomized complete block design with tree replications. Twelve released soybean varieties were Afgat ,Belesa-95, Boshe , Cheri , Dhidhessa, Gishama , Gizo, Korme, Pawe-03, katta, Wegayen and Wollo were used as a treatments. The seeds were planted in 40 cm between rows and 10 cm between plants on a plot size of 3.2m*4m. Spacing between blocks and plots were 1 and 0.5m, respectively. The seed rate was 60 kg/ha and a fertilizer rate 100 kg/ha NPS was applied during seed planting. The combined analysis of variance over two years at location Jari for dry matter yield of varieties Afgat, Gizo, Pawe-03, Wogayen and Wollo were significantly higher as compared to other soybean varieties. The combined analysis across locations at Jari and Sirinka (2019-second year) showed that varieties Afgat, Gishama, Gizo, Pawe-03, Wogayen and Wollo had higher dry matter yield and varieties Gishama (3.97 t/ha), Gizo (3.60 t/ha), Pawe-03 (4.04 t/ha) and Wogayen (3.36 t/ha) had higher haulm yield as compared with other varieties. The combined analysis across locations at Jari and Sirinka (2019) showed that varieties Pawe-03(2951 kg/ha), Gizo (2862 kg/ha), Afgat (2859 kg/ha), Gishama (2654 kg/ha),Wollo (2461 kg/ha) and Wogayen (2404 kg/ha) had higher seed yield as compared with other varieties. The variety Wollo gave higher crud protein content in two locations (Jari and Sirinka) .Therefore, varieties Afgat, Pawe-03 and Wollo were recommends for the given areas of Jari , Chefa, Sirinka and could be produced in similar environments for the best of produced optimal amount of dry matter, haulm and seed yield and good protein supplement for production of ruminants.Thus, further researches will be needed to investigate on the utilization of livestock.

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