Soybean Seed Yield Response to Multiple Seed Treatment Components across Diverse Environments

2014 ◽  
Vol 106 (6) ◽  
pp. 1955-1962 ◽  
Author(s):  
Adam P. Gaspar ◽  
David A. Marburger ◽  
Spyridon Mourtzinis ◽  
Shawn P. Conley
Keyword(s):  
Seed Yield ◽  
Seed Treatment ◽  
Soybean Seed ◽  
Yield Response

scholarly journals Soybean Seed Yield Response to Plant Density by Yield Environment in North America

2019 ◽  
Vol 111 (4) ◽  
pp. 1923-1932 ◽  
Author(s):  
Walter D. Carciochi ◽  
Rai Schwalbert ◽  
Fernando H. Andrade ◽  
Geomar M. Corassa ◽  
Paul Carter ◽  
...  
Keyword(s):  
North America ◽  
Seed Yield ◽  
Plant Density ◽  
Soybean Seed ◽  
Yield Response

scholarly journals Phosphorus and Potassium Fertilizer Application Strategies in Corn–Soybean Rotations

Agronomy ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 195 ◽  
Author(s):  
Timothy Boring ◽  
Kurt Thelen ◽  
James Board ◽  
Jason De Bruin ◽  
Chad Lee ◽  
...  
Keyword(s):  
Grain Yield ◽  
Seed Yield ◽  
Soybean Seed ◽  
Fertilizer Application ◽  
High Yield ◽  
Yield Response ◽  
Soil Test ◽  
Soil Test P ◽  
Corn Grain ◽  
Corn Grain Yield

To determine if current university fertilizer rate and timing recommendations pose a limitation to high-yield corn (Zea mays subsp. mays) and soybean (Glycine max) production, this study compared annual Phosphorous (P) and Potassium (K) fertilizer applications to biennial fertilizer applications, applied at 1× and 2× recommended rates in corn–soybean rotations located in Minnesota (MN), Iowa (IA), Michigan (MI), Arkansas (AR), and Louisiana (LA). At locations with either soil test P or K in the sub-optimal range, corn grain yield was significantly increased with fertilizer application at five of sixteen site years, while soybean seed yield was significantly increased with fertilizer application at one of sixteen site years. At locations with both soil test P and K at optimal or greater levels, corn grain yield was significantly increased at three of thirteen site years and soybean seed yield significantly increased at one of fourteen site years when fertilizer was applied. Site soil test values were generally inversely related to the likelihood of a yield response from fertilizer application, which is consistent with yield response frequencies outlined in state fertilizer recommendations. Soybean yields were similar regardless if fertilizer was applied in the year of crop production or before the preceding corn crop. Based on the results of this work across the US and various yield potentials, it was confirmed that the practice of applying P and K fertilizers at recommended rates biennially prior to first year corn production in a corn–soybean rotation does not appear to be a yield limiting factor in modern, high management production systems.

scholarly journals Influence of growing technology of different intensification levels on soybean seed yield in short rotation cultivation

1970 ◽  
pp. 106-116
Author(s):  
O. Ya. Panasyuk ◽  
Y. M. Cholovskyi
Keyword(s):  
Crop Rotation ◽  
Seed Yield ◽  
Seed Treatment ◽  
Soybean Seed ◽  
Crop Rotations ◽  
Protection System ◽  
Soybean Seeds ◽  
Field Crop ◽  
Corn Crop ◽  
Sowing Seed

Purpose. To establish the influence of the soybean crops protection from diseases system on reduction the degree of damage and grain yield increase in conditions of the Right-Bank Forest-Steppe zone. Methods. Field, quantitative-weight, comparative-calculation, mathematical-statistical. Results. Dependence of the effectiveness of soybean protection systems against diseases (fusarium wilt, septoria, bacteriosis) and crop rotation is revealed. Application of the system of soybean protection against diseases grown in a 4-field crop rotation reduced the incidence of plant diseases by more than 2 times compared to the control, which significantly affected the level of soybean yield. In the areas of application of the soybean protection system against the most common diseases, which consists in pre-sowing seed treatment (Rhizoactive 2.0 kg/t + Maxim XL 035FS (1.0 l/t) in combination with spraying crops with Abacus fungicide (1.5 l/ha), provided an increase in seed yield from 1.89 to 2.16 t/ha (14.3%) and from 2.32 to 2.64 t/ha (13.8%) respectively depending on 2- and 4-field soybean-corn crop rotations cultivation. Even higher yields of soybean seeds were obtained from the effects of this protection system together with twice done fertilization of soybeans with Plantafol (2.0 kg/ha). As a result, the yield of soybean seeds increased on average over 5 years by 0.27-0.65 t/ha, or 13-28%, compared with the control, where soybeans were grown without fertilization, and only pre-sowing treatment of seeds with the introduction of fungicide was carried out. Conclusions. It was found that pre-sowing seed treatment (Rhizoactive + Maxim ХL 035 FS) in combination with Abacus fungicide and Plantafol fertilization helped to increase soybean seed yield from 1.89 t/ha on the control (without seed treatment in 2-field crop rotation) to 2.76 and 2.97 t/ha when using these drugs in three-field and four-field soybean-corn crop rotations or, respectively, by 46 and 57% more.

Effect of numbers of Bradyrhizobium japonicum applied in commercial inoculants on soybean seed yield in Ontario

1992 ◽  
Vol 38 (6) ◽  
pp. 588-593 ◽  
Author(s):  
D. J. Hume ◽  
D. H. Blair
Keyword(s):  
Glycine Max ◽  
Seed Yield ◽  
Bradyrhizobium Japonicum ◽  
Field Experiments ◽  
Soybean Seed ◽  
Yield Response ◽  
Cubic Equation ◽  
Glycine Max L ◽  
Seed Yields ◽  
Commercial Inoculants

In the absence of Bradyrhizobium japonicum populations in the soil, yields of field-grown soybean (Glycine max (L.) Merrill) usually respond to inoculation with B. japonicum. The objective of this research was to determine the relationship between numbers of B. japonicum per seed in inoculants and soybean nodulation and yield. A total of six field experiments were conducted in 1989 and 1990 on new soybean soils. In dilution trials, Grip inoculant was applied to provide approximately 106, 105, 104, and 103B. japonicum per seed at two locations in 1989. Nodule number and mass, as well as seed yield, increased curvilinearly upward with increasing log10 most probable numbers (MPNs) of B. japonicum. The yield response curve was best fit by a cubic equation, which accounted for 97% of the variation in yield. Seed yields increased 19% (1.83 to 2.13 Mg/ha) from 105 to 106B. japonicum per seed. In field experiments involving 8 commercial inoculants in 1989 and 10 in 1990, and conducted at two locations in each year, responses to increasing log MPNs in the inoculants also were concave upwards and cubic. In the two years, 78 and 46% of the yield variation was accounted for by log MPN per seed. Increasing MPN per seed from 105 to 106 improved yields in first-time fields by an average of 24%, indicating the present minimum standard of 105B. japonicum per seed should be increased. Key words: most probable numbers, response to inoculation, nodulation, Glycine max (L.) Merrill.

Effect of seed treatment using Mancozeb and Ridomil fungicides on Rhizobium strain performance, nodulation and yield of soybean (Glycine max L.)

2021 ◽  
Vol 4 (2) ◽  
pp. 86-97
Author(s):  
Zerihun Getachew ◽  
Lejalem Abeble
Keyword(s):  
Plant Growth ◽  
Seed Yield ◽  
Seed Treatment ◽  
Soybean Seed ◽  
Dry Weight ◽  
Higher Plant ◽  
Shoot Dry Weight ◽  
Rhizobium Strains ◽  
Specific Strain ◽  
Glycine Max L

The viability of commercial Rhizobium strains (SB-14 and SB-12) were inoculated and fungicides (Mancozeb and Ridomil) were used as seed dressed on soybean seed to investigate their effect on nodulation, plant growth and seed yield of soybean. Application of Rhizobial inoculants alone gave the highest nodulation and shoot dry weight performance as well as seed yield of soybean on both sites. SB-12 inoculant had significantly shown to be more effective than SB-14 inoculant in increasing nodulation and thus produced higher plant growth and seed yield. Rhizobial survival on the seeds was severely affected by both fungicides, resulting in decreased nodulation, plant growth and seed yield for both inoculants. However, Ridomil fungicide gave the lowest nodulation and seed yield when applied with either SB-12 or SB-14 Rhizobial strains. The strains differed in their sensitivity to Mancozeb fungicide that with strain SB-12 showed a slight effect or no effect on survival of rhizobium, nodulation and yield of soybean. Seed-dressing of mancozeb and ridomil resulted in reduction of seed yield by 882.8 kg ha-1 and 1154.7 kg ha-1, respectively with SB-12 strain. The present results indicate that inoculated Rhizobium inoculants differ in their capacity to develop resistance to the two dressed fungicides. Seed treatment with Mancozeb in combination with SB-12 strain slightly affected the survival of the inoculated strain. Consequently, mancozeb fungicide may be compatable with survival of the inoculated SB-12 Rhizobia. The results also indicate that the suppressive effects of seed-applied fungicides on Rhizobium strains survival and nodulation development depend on specific strain and fungicide. Soybean seeds inoculated with SB-12 may not need management with fungicides or lower concentration of Mancozeb that could be compatible with SB-12 to suppress soil-borne pathogens for both Assosa and Begi sites, western Ethiopia.

Responses of soybean genotypes to intercropping with maize in the Southern Guinea Savanna, Nigeria

2004 ◽  
Vol 52 (2) ◽  
pp. 157-163
Author(s):  
C. U. Egbo ◽  
M. A. Adagba ◽  
D. K. Adedzwa
Keyword(s):  
Seed Yield ◽  
Block Design ◽  
Field Trials ◽  
Yield Response ◽  
Ecological Zone ◽  
Land Equivalent Ratio ◽  
Guinea Savanna ◽  
Days To Maturity ◽  
Soybean Genotypes ◽  
Location Interaction

Field trials were conducted in the wet seasons of 1997 and 1998 at Makurdi, Otukpo and Yandev in the Southern Guinea Savanna ecological zone of Nigeria to study the responses of ten soybean genotypes to intercropping. The experiment was laid out in a randomised complete block design. The genotypes TGX 1807-19F, NCRI-Soy2, Cameroon Late and TGX 1485-1D had the highest grain yield. All the Land Equivalent Ratio (LER) values were higher than unity, indicating that there is great advantage in intercropping maize with soybean. The yield of soybean was positively correlated with the days to 50% flowering, days to maturity, plant height, pods/plant and leaf area, indicating that an improvement in any of these traits will be reflected in an increase in seed yield. There was a significant genotype × yield × location interaction for all traits. This suggests that none of these factors acted independently. Similarly, the genotype × location interaction was more important than the genotype × year interaction for seed yield, indicating that the yield response of the ten soybean genotypes varied across locations rather than across years. Therefore, using more testing sites for evaluation may be more important than the number of years.

On-Farm Soybean Seed Treatment Trials

2015 ◽  
Author(s):  
Jim Fawcett ◽  
Zack Koopman ◽  
Lance Miller ◽  
Wayne Roush ◽  
Josh Sievers
Keyword(s):  
Seed Treatment ◽  
Soybean Seed ◽  
Treatment Trials ◽  
On Farm

Influence of Day and Night Temperature on Soybean Seed Yield

Crop Science ◽  
1996 ◽  
Vol 36 (1) ◽  
pp. 98-104 ◽  
Author(s):  
L. R. Gibson ◽  
R. E. Mullen
Keyword(s):  
Seed Yield ◽  
Soybean Seed ◽  
Night Temperature

Tyrosol, a phenolic compound from Phomopsis sp., is a potential biostimulant in soybean seed treatment

2021 ◽  
Vol 43 ◽  
pp. 40-44
Author(s):  
Geraldo Humberto Silva ◽  
Josiane Abadia Resende de Souza ◽  
Willian Rodrigues Macedo ◽  
Frederico Garcia Pinto
Keyword(s):  
Phenolic Compound ◽  
Seed Treatment ◽  
Soybean Seed
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