scholarly journals Performance of beans after inoculation with azospirillum brasilense and rhizobium tropici, and nitrogen and molybic fertilizations under amazonian conditions

2020 ◽  
Vol 41 (4) ◽  
pp. 1177
Author(s):  
Luiz Cobiniano de Melo Filho ◽  
Ivanildo Guilherme Henrique ◽  
Orivaldo Arf ◽  
Darllan Junior Luiz Santos Ferreira de Oliveira ◽  
Antonio Anicete de Lima ◽  
...  

Beans are nutrient-demanding plants, with a high demand for nitrogen (N). Nitrogen biological fixation (NBF) is probably the best solution to meet this demand, especially considering losses in the soil-plant-atmosphere system. Molybdenum (Mo), present in the enzymes nitrogenase and nitrate reductase, is fundamental in the metabolism of N, including NBF. This study aims to evaluate if bean seed inoculation with Azospirillum brasilense, Rhizobium tropici, and possible interactions with nitrogen topdressing and molybdenum leaf application, may affect winter bean development and yield. A randomized complete block design was used in a 4x2x2 factorial scheme. Plant population, production components, and grain yield were evaluated in two crop seasons (2017 and 2018). Seed inoculation with A. brasilense, when associated with 30 kg ha-1 N topdressing, increased plant population, pod number per plant and grain yield. Nitrogen topdressing is key to increasing winter bean productivity, regardless of inoculation or Mo foliar application.

2021 ◽  
Vol 3 (3) ◽  
pp. 10-17
Author(s):  
A. Sheidu ◽  
T. M. Igyuve ◽  
A. E. Ochigbo

The study was conducted at the Teaching and Research Farms, Federal University of Agriculture, Makurdi, Nigeria. Five Cowpea genotypes (FUAMPEA-1, IT99K-573-1-1, SAMPEA-16, SAMPEA-8, BIU LOCAL) were crossed and advanced to F1, F2, BC1 and BC2 populations using bi-parental mating design. The six generations were evaluated in a Randomized Complete Block Design with three replications. Significant test of the mean performances among the entries showed significant differences among the generations for the characters studied. Wide ranges of narrow sense heritability (18 to 79%), broad sense heritability (21 to 92%) and genetic advance (5.7 to 24.1%) were obtained for characters studied. Broad and narrow sense heritability as well as genetic advance was moderate to high for most of the characters studied such as days to 50% flowering, plant height, days to pod maturity, number of seeds per pod, number of pods per plant, hundred seed weight, root length and grain yield for the three sets of cowpea crosses. The results also revealed the possibility of exploitation for grain yield and drought tolerance in the crosses studied.


2020 ◽  
Vol 41 (6supl2) ◽  
pp. 2967-2976
Author(s):  
José Geraldo da Silva ◽  
◽  
Enderson Petrônio de Brito Ferreira ◽  
Virgínia Damin ◽  
Adriano Stephan Nascente ◽  
...  

The common bean production system is majorly based on the use of granular fertilizers to provide nutrients for the crop. Studies on the use of liquid fertilization at an appropriated depth and, seed inoculation with Rhizobium tropici can provide significant increases in the grain yield of the common bean. The objective of this study was to determine the growth and productivity of common bean as affected by N-P formulations, application depths and the inoculation with R. tropici. Field experiments were carried out in 2015 and 2016 cropping years using a complete block design, in a 2x2x2 factorial arrangement, with four replicates. The treatments involved the combination of N-P formulation (granular and liquid), two application depths of the N-P formulation (6 and 12 cm) and with or without rhizobia inoculant. The plant density (PD), number of pods (NP), number of grains (NG), mass of 100 grains (M100) and grain yield (GY) were determined. The granular and liquid N-P formulations provided similar results for PD, NP, NG, and GY of common bean. Similarly, the application depth of the N-P formulations did not affect GY. Inoculation of the seed with R. tropici stimulated NP and NG, increasing GY. Growth and productivity parameters were equally affected by the type of formulation and application depth; however, GY was greater with rhizobial inoculant. Thus, the liquid N-P formulation, applied at 6 cm depth, associated with rhizobial inoculant can improve the crop management providing better control of application uniformity, minimal soil mobilization, less fuel consumption, and increased grain yield.


Author(s):  
Fernando de S. Buzo ◽  
Lucas M. Garé ◽  
Orivaldo Arf ◽  
José R. Portugal ◽  
Flavia C. Meirelles ◽  
...  

ABSTRACT In rice, the use of the bacterium Azospirillum brasilense has shown to be very useful for the crop, being able to increase the final productivity of the same or reduce the need for nitrogen in topdressing. It has recently been noted that there are other regulators that perform other functions, such as thidiazuron (TDZ), a cytokinin-like substance that has been shown to significantly increase upland rice productivity. Thus, the present work aimed to verify the effect of the interaction between the foliar application of A. brasilense and thidiazuron doses applied at the occasion of the tillering of the plants on the productive aspects and crop productivity. The experiment was carried out in the agricultural years of 2015/16 and 2016/17, at the UNESP Teaching, Research and Extension Farm belonging to the Engineering Faculty of Ilha Solteira - UNESP, located in the municipality of Selvíria, MS. The experimental design was a randomized complete block design with a 2 x 4 factorial scheme with four replicates. The treatments were the combination of the presence or absence of A. brasilense foliar application with doses of TDZ (0, 0.5, 1.0 and 1.5 g ha-1) applied to upland rice cultivar BRS Esmeralda. Based on the results obtained for plant height, number of panicles per square meter, total number of grains and fertility of spikelets, mass of 100 grains and grain yield, it was concluded that, in the two agricultural years observed, there were no interaction and individual effects of the foliar application of the bacteria, and of the TDZ doses used at the time of tillering in the BRS Esmeralda cultivar.


2013 ◽  
Vol 19 (1) ◽  
pp. 45-49
Author(s):  
AKMG Sarwar ◽  
J Sultana ◽  
MO Islam ◽  
AKMA Prodhan

An experiment was conducted in the field laboratory of the Department of Crop Botany, Bangladesh Agricultural University, Mymensingh, to investigate the effect of foliar application of Miyodo on morphology, yield contributing characters and yield of T. aman rice cv. BR-11. The concentrations of Miyodo used were 2 mgL-1, 3 mgL-1, 4 mgL-1 and 5mgL-1 with a control. The experiment was laid out in a randomized complete block design with three replications. Application of Miyodo by spraying at 45 days after transplanting significantly enhanced plant height, number of tillers and effective tillers, number of leaves and leaf area, size of flag leaf, total dry matter, panicle length, number of total grains and filled grains, 1000-grain weight, grain yield, straw yield, and harvest index. The result showed that the application of 5 mgL-1 Miyodo produced the highest grain yield of BR-11 compared to other concentrations as well as control. However, further study is needed to determine the higher concentration limit of Miyodo in maximizing the growth and yield of T. aman rice cv. BR-11.DOI: http://dx.doi.org/10.3329/pa.v19i1.17106 Progress. Agric. 19(1): 45 - 49, 2008 


2014 ◽  
Vol 11 (2) ◽  
pp. 141-147 ◽  
Author(s):  
Bandhu Raj Baral ◽  
Parbati Adhikari

A field experiment was conducted to study the effect of Azotobacter on growth and yield of maize (variety Rampur composite) at farmland of National Maize Research Program, Rampur, Chitwan, Nepal during the winter season of 2007-08 and 2008-09. The experiment was laid out in randomized complete block design with eight treatments each replicated three times. The treatments were control, 120:60:40 kg NP2O5K2O ha-1, Azotobacter seed inoculation, Azotobacter soil application, Azotobacter +10 t FYM ha-1, 10 t FYM ha-1, 120:60:40 kg NP2O5K2O ha-1 + Azotobacter, 120:60:40 kg NP2O5K2O ha-1 + Azotobacter + 10 t FYM ha-1. Analysis of variance showed that grain yield, plant height, ear height, ear length, kernel per rows and 1000 grain weight were significantly affected with treatments. Only inoculation of Azotobacter increased 15 to 35% grain yield over non inoculated treatments. The benefit of Azotobacter inoculation was higher in the absence of chemical fertilizer application. DOI: http://dx.doi.org/10.3329/sja.v11i2.18409 SAARC J. Agri., 11(2): 141-147 (2013)


Author(s):  
P. Chandana ◽  
K. R. Latha ◽  
C. R. Chinnamuthu ◽  
P. Malarvizhi ◽  
A. Lakshmanan

A field experiment was conducted during spring 2020-21 at Wetland farms of Tamil Nadu Agricultural University, Coimbatore to study the effect of foliar Nanonutrients (N, Zn and Cu) application on the yield and nutrient uptake by rice at harvest. Twelve treatments with three replications were laid out in randomized complete block design. The results revealed that application of 100% NPK + Nano N at active tillering (T3) and 75% N + 100% PK + Nano N at active tillering (T4) increased the grain yield (5112 and 5063 kg ha-1) and N uptake (106.48 and 89.51 kg ha-1) of rice, respectively and was on par with 100% NPK + Nano Zn at active tillering and panicle emergence (T10). However, significantly higher Zn and Cu uptake were recorded in 100% NPK + Nano Zn at active tillering and panicle emergence (T10, 457.61 g ha-1) and 100% NPK + Nano Cu at active tillering and panicle emergence (T12, 92.36 g ha-1), respectively which was followed by 100% NPK + Nano N at active tillering (T3, 372.45 and 81.51 g ha-1) and 75% N + 100% PK + Nano N at active tillering (T4, 355.41 and 84.13 g ha-1). Thus, it can be concluded that application of foliar Nano N at active tillering along with soil application of either 100% NPK or 75% N + 100% PK can provide better results in terms of grain yield and nutrient uptake.


2018 ◽  
Vol 6 (2) ◽  
pp. 175-182 ◽  
Author(s):  
Jiban Shrestha ◽  
Deo Nath Yadav ◽  
Lal Prasad Amgain ◽  
Jhanka Prasad Sharma

Nitrogen fertilizer and plant density are considered some of the most important factors affecting phenology and grain yield of maize. Therefore, current study was conducted to assess the effects of nitrogen fertilizer application and plant density on phenology (days to tasseling, silking and maturity) and grain yield of maize (Variety: Rampur Composite) at Mangalpur VDC-3, Anandapur, Chitwan, Nepal during 2006-07 winter season. The five levels of nitrogen as 0, 50, 100, 150 and 200 kg N/ha and three levels of the plant population as 55555, 66666 and 83333 plants/ha were evaluated using two factorial randomized complete block design with three replications. The days of flowering (tasseling and silking) decreased with increasing nitrogen level up to 200 kg N/ha and increased with increasing level of plant population up to 83333 plants/ha). Physiological maturity and grain yield increased with increasing level of nitrogen up to 200 kg N/ha and plant population up to 83333 plants/ha. The highest grain yield (6925.79 kg/ha) was obtained with 200 kg N/ha + 66666 plants/ha. This study suggested that maize production can be maximized by cultivating maize with the use of 200 kg N/ha and maintaining the plant density of 66666 plants/ha.


2020 ◽  
Vol 16 (5) ◽  
pp. 47-56
Author(s):  
Paula Daiane de Sena Martins ◽  
Eduardo Lima do Carmo ◽  
Alessandro Guerra da Silva ◽  
Sérgio de Oliveira Procópio ◽  
Gustavo André Simon ◽  
...  

The adoption of different plant arrangements in the soybean crop can promote morphological changes in the plants, which may influencethe grain yield. In this context, the spatial arrangement allied to a determined growth and higher cycle variety may be an alternative for the management of the soybean crop under adverse edaphic-climatic conditions. In this way, the objective of this work was to evaluate the agronomic performance and the productive components of the BRS Valiosa RR®soybean cultivar, with determinedgrowthin different plant populations and between rows. The trial was installed in Rio Verde/GOat2012/13 agricultural year. A randomized complete block design was used in a factorial arrangement4x4with four replications. It was evaluated four spacing between rows(20; 40; 20/40 and 20/60 cm) associated with four plant populations (200,000, 300,000, 400,000 and 500,000 ha-1plants). The BRS Valiosa RR® cultivar showed potential to reduce the plant population without causing reductions in grain yield, regardless of the spacing between rows.


2018 ◽  
Vol 31 (1) ◽  
pp. 1-8
Author(s):  
MARCOS DA SILVA BRUM ◽  
THOMAS NEWTON MARTIN ◽  
VINÍCIUS SANTOS DA CUNHA ◽  
LUIZ FERNANDO TELEKEN GRANDO ◽  
ALEX TAGLIAPIETRA SCHONELL

ABSTRACT The objective of this study was to evaluate the phytomorphological parameters of soybean in a crop-livestock system inoculated with Azospirillum brasilense. The experiment was conducted in Santa Maria, Brazil, for two agricultural years (2 Paper extracted from the doctoral thesis of the first author. 012/2013 and 2013/2014) in a randomized complete block design with three replications. In the winter, the black oat and ryegrass pasture was managed with sheep under different grazing systems: (I) - a conventional grazing (CG) system, where the animals remained in the pasture throughout the experimental period without any pasture height control; (II, III, and IV) - systems with post-grazing pasture heights of 10, 20, and 30 cm, respectively; and (NG) - one control without grazing. All treatments received two nitrogen doses (50 and 100 kg ha-1) and inoculation or no inoculation (A. brasilense). The soybean cultivar BMX Potência RR was sown using no-tillage on 16 November 2012 and 1 December 2013. In each plot, seven rows of plants with spacing of 0.45 m were used, and in four rows, the seeds were inoculated with the bacterium A. brasilense. The phytomorphological variables and grain productivity were evaluated. In a croplivestock system, soybean has better productivity when established on black oat and ryegrass pasture managed with post-grazing pasture heights of between 20 and 30 cm. Areas under conventional grazing in the winter led to smaller soybean plants with lower first and last pod heights. Inoculation with A. brasilense should not be used alone in soybean cultivation.


2015 ◽  
Vol 21 ◽  
pp. 41-48
Author(s):  
Gebremedhin Welu

The objective of this experiment was to estimate the magnitude of genotype X environment interaction on grain yield and yield related traits. Twelve varieties of food barley were included in the study planted in randomized complete block design with three replications. The ANOVA of combined and individual location revealed significant differences among the food barley genotypes for grain yield and other traits. The results of ANOVA for grain yield showed highly significant (p≤0.01) differences among genotypes evaluated for grain yield at Maychew and significant (p≤0.05) differences in Korem, Alage and Mugulat. The ANOVA over locations showed a highly significant (p≤0.01) variation for the genotype effect, environment effects, genotype X environment interaction (GEI) effect and significant (p≤0.05) variation for GEI effect of yield and for most of the yield related traits of food barley genotypes. Haftysene, Yidogit, Estayish and Basso were the genotypes with relatively high mean grain yield across all locations and they are highly performing genotypes to the area. Among locations, the highest mean grain yield was recorded at Korem and it was a suited environment to all the genotypes whereas Mugulat is unfavoured one. ECOPRINT 21: 41-48, 2014DOI: http://dx.doi.org/10.3126/eco.v21i0.11903


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