Fungicide, insecticide, and foliar fertilizer effect on soybean yield, seed composition, and canopy retention

Soybean yield, biological N2 fixation and seed composition responses to additional inoculation in the United States

Scientific Reports ◽

10.1038/s41598-019-56465-0 ◽

2019 ◽

Vol 9 (1) ◽

Cited By ~ 2

Author(s):

Walter D. Carciochi ◽

Luiz H. Moro Rosso ◽

Mario A. Secchi ◽

Adalgisa R. Torres ◽

Seth Naeve ◽

...

Keyword(s):

Seed Yield ◽

Previous History ◽

Soybean Seed ◽

The United States ◽

Growth Stages ◽

Seed Composition ◽

Soybean Yield ◽

Nodule Number ◽

Soil Inoculation ◽

Seed Inoculation

AbstractIt is unclear if additional inoculation with Bradyrhizobia at varying soybean [Glycine max (L.) Merr.] growth stages can impact biological nitrogen fixation (BNF), increase yield and improve seed composition [protein, oil, and amino acid (AA) concentrations]. The objectives of this study were to evaluate the effect of different soybean inoculation strategies (seed coating and additional soil inoculation at V4 or R1) on: (i) seed yield, (ii) seed composition, and (iii) BNF traits [nodule number and relative abundance of ureides (RAU)]. Soybean field trials were conducted in 11 environments (four states of the US) to evaluate four treatments: (i) control without inoculation, (ii) seed inoculation, (iii) seed inoculation + soil inoculation at V4, and (iv) seed inoculation + soil inoculation at R1. Results demonstrated no effect of seed or additional soil inoculation at V4 or R1 on either soybean seed yield or composition. Also, inoculation strategies produced similar values to the non-inoculated control in terms of nodule number and RAU, a reflection of BNF. Therefore, we conclude that in soils with previous history of soybean and under non-severe stress conditions (e.g. high early-season temperature and/or saturated soils), there is no benefit to implementing additional inoculation on soybean yield and seed composition.

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Organic substrate and organic foliar fertilizer effect on chlorophyll index and growth in Umbuzeiro seedlings

Agronomía Colombiana ◽

10.15446/agron.colomb.v36n2.69866 ◽

2018 ◽

Vol 36 (2) ◽

pp. 152-157

Author(s):

Alian Cássio Pereira Cavalcante ◽

Adailza Guilherme Cavalcante ◽

Josinaldo Da Silva Henrique ◽

José Flavio Cardoso Zuza ◽

Murielle Magda Medeiros Dantas ◽

...

Keyword(s):

Fruit Tree ◽

Organic Substrate ◽

Northeast Brazil ◽

Growth Substrate ◽

Foliar Fertilizer ◽

Experiment Unit ◽

Chlorophyll Index ◽

Spondias Tuberosa ◽

Fertilizer Effect ◽

Organic Compost

The umbuzeiro (Spondias tuberosa Arr. Cam.) is a fruit tree originating from the Caatinga biome that enjoys high acceptance in the market for in natura consumption or industrialized products; as a result, its cultivation has become of great importance for the region of Northeast Brazil. The objective was to evaluate growth, substrate temperature and chlorophyll indices in umbuzeiro seedlings at organic substrate levels and with organic foliar fertilizer (EcoLife®) applications. The experimental design was a randomized block with a factorial arrangement of 5×2, with four replicates and three plants per experiment unit. The factors corresponded to the proportions of the organic compost to the substrates (0, 25, 50, 75 and 100%), with and without foliar applications of 1% organic foliar fertilizer. The growth, leaf area and chlorophyll indices of the umbuzeiro seedlings were higher in the treatments with organic compost and foliar applications of organic foliar fertilizer.

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Soybean Aphid Feeding Injury and Soybean Yield, Yield Components, and Seed Composition

Agronomy Journal ◽

10.2134/agronj2007.0207 ◽

2008 ◽

Vol 100 (2) ◽

pp. 237-246 ◽

Cited By ~ 39

Author(s):

Eric A. Beckendorf ◽

Michael A. Catangui ◽

Walter E. Riedell

Keyword(s):

Yield Components ◽

Soybean Aphid ◽

Seed Composition ◽

Soybean Yield ◽

Aphid Feeding

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Soybean Aphid Feeding Injury and Soybean Yield, Yield Components, and Seed Composition

Agronomy Journal ◽

10.2134/agrojnl2007.0207 ◽

2008 ◽

Vol 100 (2) ◽

pp. 237 ◽

Cited By ~ 47

Author(s):

Eric A. Beckendorf ◽

Michael A. Catangui ◽

Walter E. Riedell

Keyword(s):

Yield Components ◽

Soybean Aphid ◽

Seed Composition ◽

Soybean Yield ◽

Aphid Feeding

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Lowland Rice Yield as Affected by Straw Incorporation and Inorganic Fertilizer Over Cropping Seasons in Fluvisol

JOURNAL OF ADVANCES IN AGRICULTURE ◽

10.24297/jaa.v3i1.5409 ◽

2014 ◽

Vol 3 (1) ◽

pp. 129-141

Author(s):

Brahima Koné ◽

Zadi Florent ◽

Gala bi Trazié Jeremie ◽

Akassimadou Edja Fulgence ◽

Konan Kouamé Firmin ◽

...

Keyword(s):

Grain Yield ◽

Rice Variety ◽

Mineral Fertilizer ◽

Lowland Rice ◽

Inorganic Fertilizer ◽

Cropping Season ◽

Significant Difference ◽

Straw Incorporation ◽

Cropping Seasons ◽

Fertilizer Effect

Grain yield stabilization of lowland rice over cropping seasons was explored using different compositions of inorganic fertilizers (NPK, NPKCa, NPKMg, NPKZn, NPKCaMg, NPKCaZn and NPKCaMgZn) and straw incorporation (3, 6, 9, 12 and 15 tha-1 ). No fertilizer and no straw amended plot was the control in a split-plot design with three replications laid in a Fluvisol of Guinea savanna in Centre Cote d’Ivoire. Three weeks old nursery rice variety NERICA L19 was transplanted. No significant difference of grain yield was observed between the different treatments excluding the highest yields recorded for treatments NPKMg (5.09 tha-1 ), NPKZn (5.15 tha-1 ) and NPKCaéMg (5.31 tha-1 ) compared with 12 (3.95 tha1 ) and 15 tha-1 (4.14 tha-1 ) as straw rates respectively. Grain yield declining trend was more pronounced for mineral fertilizer treatments showing twice greater depressive effect of cropping cycle compared with the straw especially, for treatments characterized by highest grain yield in the first cropping season and similar grain yields were recorded for both sources of nutrient in the third cropping cycle. Of slowness of nutrients releasing by straw, highest grain yield was expected for this soil amender within a longer period of cultivation whereas, unbalance soil micronutrients should be relevant to studious declining yield under inorganic fertilizer effect. Nevertheless, the straw rate of 12 tha-1 supplying 0.58% of NPK as mineral fertilizer equivalent can be recommended for sustaining lowland rice production in the studied agro-ecosystems unless for three cropping seasons.

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