Diffuse system simulating wheat productivity by nitrogen and temperature in the use of biopolymers

ABSTRACT Fuzzy logic can simulate wheat yield by nitrogen and temperature nonlinearity, validating the use of hydrogel biopolymer. The objective of this study is to adapt the fuzzy logic model to the simulation of nitrogen biomass and wheat grain yield and non-linearity of the maximum air temperature, under the conditions of use of the hydrogel biopolymer, in high and low N-residual release systems. The study was conducted in 2014 and 2015, in Augusto Pestana, RS, Brazil (28 ° 26 ‘30’ latitude S and 54 ° 0 ‘58’ longitude W). The experimental design was a randomized block design with four replications in 5 x 5 factorial, for hydrogel doses (0, 30, 60, 90 and 120 kg ha-1), added in the furrow next to the seed, and N-fertilizer doses. (0, 30, 60, 90 and 120 kg ha-1), applied at the phenological stage V3 (third expanded leaf) as top-dressing, respectively. The pertinence functions together with the quantitative and linguistic values for the input and output variables are suitable for the use of fuzzy logic in the wheat yield simulation. The fuzzy model made it possible to estimate the values of biomass and wheat grain yield by nitrogen and non-linearity of the maximum air temperature under the conditions of use of the hydrogel biopolymer in high and low N-residual release systems.

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Simulation of wheat yield by nitrogen and nonlinearity of environmental conditions

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v24n1p44-51 ◽

2020 ◽

Vol 24 (1) ◽

pp. 44-51

Author(s):

Ana P. B. Trautmann ◽

José A. G. da Silva ◽

Manuel O. Binelo ◽

Antonio C. Valdiero ◽

Luana Henrichsen ◽

...

Keyword(s):

Fuzzy Logic ◽

Air Temperature ◽

Block Design ◽

Wheat Yield ◽

Grain Filling ◽

Phenological Stage ◽

Southern Brazil ◽

Wheat Grain ◽

Nitrogen Use ◽

Randomized Block Design

ABSTRACT Fuzzy logic can simulate wheat productivity by assisting crop predictability. The objective of the study is the use of fuzzy logic to simulate wheat yield in the conditions of nitrogen use, together with the effects of air temperature and rainfall, in the main cereal succession systems in Southern Brazil. The study was conducted in the years 2014, 2015 and 2016, in Augusto Pestana, RS, Brazil. The experimental design was a randomized block design with four repetitions in a 4 x 3 factorial scheme for N-fertilizer doses (0, 30, 60, 120 kg ha-1) and nutrient supply forms [100% in phenological stage V3 (third expanded leaf); (70%/30%) in the phenological stage V3/V6 (third and sixth expanded leaf) and; fractionated (70%/30%) at the phenological stage V3/E (third expanded leaf and beginning of grain filling)], respectively, in the soybean/wheat and corn/wheat systems. The pertinence functions and the linguistic values established for the input and output variables are adequate for the use of fuzzy logic. Fuzzy logic simulates wheat grain yield efficiently in the conditions of nitrogen use with air temperature and rainfall in crop systems.

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Fuzzy logic simulation of oat yield after using hydrogel and nitrogen biopolymer management

Australian Journal of Crop Science ◽

10.21475/ajcs.20.14.08.p2591 ◽

2020 ◽

pp. 1319-1327

Author(s):

Osmar Bruneslau Scremin ◽

José Antonio Gonzalez da Silva ◽

Ivan Ricardo Carvalho ◽

Ângela Teresinha Woschinski De Mamann ◽

Odenis Alessi ◽

...

Keyword(s):

Fuzzy Logic ◽

Air Temperature ◽

Biomass Yield ◽

New Technologies ◽

Block Design ◽

Fuzzy Model ◽

Logic Simulation ◽

Efficient Tool ◽

Randomized Block Design ◽

Maximum Air Temperature

The fuzzy logic is an efficient tool for simulation and validation of new technologies in agriculture. The objective of the study is to adapt the fuzzy logic model for simulation of biomass and oat grain yield by nitrogen involving the nonlinearity of the maximum air temperature in the conditions of use of the biopolymer hydrogel, considering high succession systems and low release of residual N. The study was conducted in 2014 and 2015, in a randomized block design with four replicates in a 5 x 5 factorial. Five hydrogel doses (0, 30, 60, 90 and 120 kg ha-1) were added in the groove next to the seed; and 5 doses of N-fertilizer (0, 30, 60, 90 and 120 kg ha-1) applied at the fourth expanded leaf stage, respectively. The cultivar was URS Corona. The pertinence functions and the linguistic values established in the input and output variables to simulate the biomass yield and oat grains in the succession systems are adequate observed productivity. The fuzzy model makes it possible to estimate the biomass and oat grains productivity efficiently under the conditions of use of the hydrogel as a function of the nitrogen doses and maximum air temperature, adding to the existing models of simulation.

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Effects of silicate application on soil fertility and wheat yield

Semina Ciências Agrárias ◽

10.5433/1679-0359.2015v36n6supl2p4071 ◽

2015 ◽

Vol 36 (6Supl2) ◽

pp. 4071 ◽

Cited By ~ 4

Author(s):

Marcos Vinícius Mansano Sarto ◽

Maria do Carmo Lana ◽

Leandro Rampim ◽

Jean Sérgio Rosset ◽

Jaqueline Rocha Wobeto

Keyword(s):

Grain Yield ◽

Block Design ◽

Wheat Yield ◽

Chemical Properties ◽

Magnesium Silicate ◽

Exchange Capacity ◽

Soil Chemical Properties ◽

Randomized Block Design ◽

Fe And Mn ◽

Calcium Magnesium

An improvement in soil chemical properties and crop development with silicate application has been confirmed in several plant species. The effects of silicate application on soil chemical properties and wheat growth were investigated in the present study. The experiment was carried out in 8-L plastic pots in a greenhouse. Treatments were arranged in a randomized block design in a 3 × 5 factorial: three soils [Rhodic Acrudox (Ox1), Rhodic Hapludox (Ox2) and Arenic Hapludult (Ult)] and five silicate rates (0, 1, 2, 4 and 6 Mg ha–1 of calcium/magnesium silicate), with four replications. The plant length, number of spikes per pot, shoot dry matter and grain yield, were measured after 115 days of wheat (Triticum aestivum L.) growth. Changes in the soil chemical properties (pH, H+ + Al3+, Al3+, P, K, Ca, Mg, Si, Cu, Zn, Fe and Mn) were analyzed after wheat harvest. Application of calcium/magnesium silicate reduces the potential acidity (H+ + Al3+) and Al3+ phytotoxic; and increases the soil pH, available Ca, Mg and Si, cation exchange capacity (CEC) and soil base saturation. Silicate application did not affect the available P, exchangeable K and availability of micronutrients (Cu, Zn, Fe and Mn) in the three soils. The application of calcium/magnesium silicate in an acid clayey Rhodic Hapludox improves the development and yield of wheat; however, the silicate application in soil with pH higher to 5.3 and high Si availability does not affect the agronomic characteristics and grain yield of wheat.

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Azospirillum Brasilense And Zinc Rates Affecting Fungal Root Colonization and Yield of Cereal Crops in Succession Under Brazilian Cerrado Conditions

10.21203/rs.3.rs-897135/v1 ◽

2021 ◽

Author(s):

Philippe Solano Toledo Silva ◽

Ana Maria Rodrigues Cassiolato ◽

Fernando Shintate Galindo ◽

Arshad Jalal ◽

Thiago Assis Rodrigues Nogueira ◽

...

Keyword(s):

Grain Yield ◽

Mycorrhizal Fungi ◽

Azospirillum Brasilense ◽

Root Colonization ◽

Block Design ◽

Wheat Yield ◽

Arbuscular Mycorrhizal ◽

Symbiotic Association ◽

Brazilian Cerrado ◽

Randomized Block Design

Abstract Soil and plant beneficial microbes capitalize plant nutrition through successful colonization in roots rhizosphere which could sustainably increase cereal production. Zinc (Zn) is intensively reported a deficient nutrient for maize and wheat production in Brazilian Cerrado, which could be sustainably managed by beneficial microorganisms and their symbiotic association with other microorganisms like arbuscular mycorrhizal fungi (AMF) and dark septate endophytes (DSE). The objective of this study was to evaluate the effect of Azospirillum brasilense inoculation and residual Zn rates on root colonization and grain yield of maize and wheat in succession under Brazilian Cerrado conditions. These experiments were conducted in a randomized block design with four replications and arranged in a 5x2 factorial scheme. The treatments were consisted of five Zn rates (0, 2, 4, 6 and 8 kg ha-1) applied from zinc sulfate in maize and residual on wheat, and without and with seed inoculation of A. brasilense. Both crops were evaluated for root colonization of AMF and DSE, number of spores of AMF, quantification of CO2-C and grain yield. Colonization by AMF and DSE were significantly increased with interaction of Zn rates and inoculation treatments. The inoculation of A. brasilense favored root AMF and DSE colonization while increasing Zn rates by 4 kg ha-1 for maize and while 2 and 4 kg ha-1 Zn in residual for wheat reduced these colonizations. The inoculation did not influence spore production and CO2-C in both crops while maize-wheat yield were increased with Zn rates up to 4 kg ha-1 in edaphoclimatic condition of Brazilian Cerrado.

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Seedling emergence and yield performance of wheat cultivars depending on seed vigor and sowing density

Journal of Seed Science ◽

10.1590/2317-1545v39n1171002 ◽

2017 ◽

Vol 39 (1) ◽

pp. 58-65 ◽

Cited By ~ 2

Author(s):

Julia Abati ◽

Cristian Rafael Brzezinski ◽

José Salvador Simoneti Foloni ◽

Claudemir Zucareli ◽

Manoel Carlos Bassoi ◽

...

Keyword(s):

Grain Yield ◽

Management Practices ◽

Block Design ◽

Seedling Emergence ◽

Wheat Yield ◽

Seed Vigor ◽

Yield Potential ◽

Wheat Cultivars ◽

Yield Performance ◽

Randomized Block Design

Abstract: The use of high quality seeds, the appropriate management practices and the selection of promising genotypes are strategies to exploit the wheat yield potential. Thus, the goal of this study was to evaluate the effect of the vigor level of wheat seeds submitted to different sowing densities on seedling emergence, tillering and yield performance culture. The experiments were conducted in Londrina and Ponta Grossa, Paraná state, Brazil, with a completely randomized block design, in a 2x2x2 factorial scheme, with four replications. Two levels of seed vigor (high and low), two sowing densities (200 and 400 viable seeds per m2) and two wheat cultivars (BRS Sabiá and CD 150) were evaluated. The conducted tests were: seedling emergence, number of tillers, yield components, grain yield and apparent harvest index. The use of high vigor seeds helps the establishment of the plant stand and yield performance in both locations. The 400 seeds per m2 seedling density results in a lower number of tillers per plant in both locations. BRS Sabiá, in Ponta Grossa, has the highest grain yield.

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Application times, sources and doses of nitrogen on wheat cultivars under no till in the Cerrado region

Ciência Rural ◽

10.1590/s0103-84782011000800013 ◽

2011 ◽

Vol 41 (8) ◽

pp. 1375-1382 ◽

Cited By ~ 9

Author(s):

Marcelo Carvalho Minhoto Teixeira Filho ◽

Salatiér Buzetti ◽

Marcelo Andreotti ◽

Orivaldo Arf ◽

Marco Eustáquio de Sá

Keyword(s):

Grain Yield ◽

Block Design ◽

Wheat Yield ◽

Nitrification Inhibitor ◽

Nitrogen Sources ◽

Wheat Cultivars ◽

No Till ◽

Randomized Block Design ◽

Productive Potential ◽

Leaf N Content

Proper management of nitrogen fertilization and using cultivars with high productive potential are essential to obtain high wheat yield. Thus, the objective of the present study was to assess the effects of different N doses and sources, one with a nitrification inhibitor, applied at sowing or as side dressing, on the production components and yield of two wheat cultivars irrigated, under no till, cultivated in a region of low altitude Cerrado (Selvíria - MS). A randomized block design was used in a 5x3x2x2 factorial arrangement, that is, five nitrogen doses (0, 50, 100, 150 and 200kg ha-1), three nitrogen sources (ammonium sulfonitrate with nitrification inhibitor (Entec®), ammonium sulfate and urea) and two nitrogen application times (at sowing or side dressing) on two wheat cultivars ('E 22' and 'E 42') with three replications. There was no difference for grain yield between the wheat cultivars and among the nitrogen sources. The application of nitrogen totally at sowing is feasible as well as the traditional application at sowing and side dressing. The nitrogen doses increased the leaf N content of the 'E 22' cultivar, resulting in a reduction in the hectolitric mass of the 'E 42' cultivar and increased grain yield of the 'E 22' and 'E 42' wheat yield cultivars, respectively, up to doses of 126 and 122kg ha-1 N, regardless of the application time and the nitrogen source.

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Artificial Intelligence Simulating Grain Productivity During the Wheat Development Considering Biological And Environmental Indicators

Journal of Agricultural Studies ◽

10.5296/jas.v7i3.15153 ◽

2019 ◽

Vol 7 (2) ◽

pp. 197

Author(s):

Ângela Teresinha Woschinski De Mamann ◽

José Antonio Gonzalez da Silva ◽

Manuel Osório Binelo ◽

Osmar Bruneslau Scremin ◽

Adriana Roselia Kraisig ◽

...

Keyword(s):

Neural Networks ◽

Artificial Neural Networks ◽

Grain Yield ◽

Air Temperature ◽

Network Architecture ◽

Wheat Grain ◽

Development Cycle ◽

Grain Productivity ◽

Artificial Neural ◽

Maximum Air Temperature

The artificial neural networks modeling might simulate the efficiency of wheat grain yield involving biological and environmental conditions during the development cycle. Considering the main succession systems in wheat crop in Brazil, the study aimed to adapt an artificial neural network architecture capable of predict the wheat grain productivity throughout the growth cycle, involving nitrogen and non-linearity of maximum air temperature and rainfall. The field experiment was conducted in two successions systems (soybean/wheat and maize/wheat) in 2017 and 2018, the trial design was in a randomize blocs with eight replicate in the level 0, 30, 60, and 120 kg ha-1 N-fertilizer doses in the phenological stage of third fully expanded leaves. Every 30 day of the development cycle were obtained the biomass yield, maximum air temperature and accumulated rainfall information. The perceptron multi-layered artificial neural networks with backpropagation algorithm with network architecture 5-8-1 and 5-7-1 in soybean/wheat and maize/wheat system respectively, is able to simulate the wheat grain yield involving the nitrogen dose at top-dressing and the non-linearity of maximum air temperature and rainfall with biomass information obtained during the cycle crop.

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Assessing Forms of Application of Azospirillum brasilense Associated with Silicon Use on Wheat

Agronomy ◽

10.3390/agronomy9110678 ◽

2019 ◽

Vol 9 (11) ◽

pp. 678 ◽

Cited By ~ 2

Author(s):

Fernando Shintate Galindo ◽

Willian Lima Rodrigues ◽

Antônio Leonardo Campos Biagini ◽

Guilherme Carlos Fernandes ◽

Eduardo Bianchi Baratella ◽

...

Keyword(s):

Grain Yield ◽

Azospirillum Brasilense ◽

Management Practices ◽

Cropping Systems ◽

Block Design ◽

Wheat Yield ◽

Magnesium Silicate ◽

Plant Growth Promoting Bacteria ◽

Wheat Grain ◽

Control Seed

The use of biological techniques such as plant growth-promoting bacteria (PGPB) can represent a sustainable alternative for cereal growth in tropical areas. Research showing the potential for management practices which optimize PGPB inoculation is of utmost importance. This research was developed to investigate the potential use of Azospirillum brasilense in wheat cropping systems, as well as to assess the potential synergistic interactions between the beneficial use of silicon (Si), principally under abiotic and biotic conditions, and A. brasilense forms of application and how they impact crop development and wheat yield. The study was set up in a Rhodic Hapludox under a no-till system. The experimental design was a completely randomized block design with four replicates arranged in a factorial scheme with four inoculation forms (control, seed, groove, and leaf) and two soil acidity corrective sources (Ca and Mg silicate as Si source and dolomitic limestone). Seed inoculation was more effective in promoting wheat growth and development, with higher yield, showing an increase of 26.7% in wheat grain yield. Calcium and magnesium silicate application associated with foliar inoculation and without A. brasilense inoculation can increase wheat grain yield.

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Do the application forms and doses of boron affect wheat crops?

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v22n9p597-603 ◽

2018 ◽

Vol 22 (9) ◽

pp. 597-603

Author(s):

Fernando S. Galindo ◽

Marcelo C. M. Teixeira Filho ◽

Salatiér Buzetti ◽

Eduardo H. M. Boleta ◽

Willian L. Rodrigues ◽

...

Keyword(s):

Grain Yield ◽

Block Design ◽

Residual Effect ◽

Grain Production ◽

Wheat Grain ◽

Mato Grosso ◽

Randomized Block Design ◽

Tillage System ◽

Mato Grosso Do Sul ◽

Application Forms

ABSTRACT Boron is one of the most limiting micronutrients in the grain production system in Brazil. Thus, the objective of this study was to evaluate the effects of the application forms and doses of boron on the concentration of this nutrient in the leaves, straw, and grains of wheat, as well as the production components and grain yield. The residual effect of boron in the soil was also evaluated. An experiment was conducted in a no-tillage system in Oxisol with clay texture in Selvíria, Mato Grosso do Sul. The experimental design was a randomized block design with four replicates arranged in a 4 x 3 factorial scheme. Four doses of boron (0, 1, 2, and 4 kg ha-1) were applied with a boric acid source (B = 17%) and three application forms: a) during the desiccation of the predecessor straw with herbicide; b) at the time of sowing in soil along with formulated fertilization seeding, and c) via the leaves with the application of post-emergent herbicide. The application of boron to the soil at the time of sowing at an approximate dose of 2 kg ha-1 provides the highest number of spikelets per ear and wheat grain yield.

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Assessment of genetic variability for quantitative characters in rice (Oryza sativa L.) under post flood situation in sali

ORYZA- An International Journal on Rice ◽

10.35709/ory.2021.58.1.7 ◽

2021 ◽

Vol 58 (1) ◽

pp. 43-48

Author(s):

Dalibha Pathak ◽

Umesh Ch. Kalita

Keyword(s):

Grain Yield ◽

Coefficient Of Variation ◽

Quantitative Traits ◽

Oryza Sativa L ◽

Block Design ◽

Genetic Advance ◽

Spikelet Sterility ◽

Rice Varieties ◽

Randomized Block Design ◽

Spikelets Per Panicle

Sixteen genotypes of rice (including one check) were evaluated on 18 quantitative traits during sali (August), 2018 in a randomized block design with three replications at Instruction cum Research Farm, Department of Plant Breeding and Genetics, Assam Agricultural University, Jorhat to study the nature and magnitude of variability, heritability and genetic advance under delayed sown condition. The analysis of variance for 18 quantitative traits revealed the presence of significant differences for grain yield and its component characters. The highest genotypic coefficient of variation (GCV) and phenotypic coefficient of variation (PCV) was observed for chaffs per panicle followed by grains per panicle, spikelet sterility (%), spikelets per panicle, grain yield (kg/ha). A high heritability coupled with high genetic advance was observed for plant height (cm), spikelets per panicle, spikelet sterility (%), chaffs per panicle, grains per panicle, grain yield (g/hill), grain yield (kg/ha), biological yield (kg/ha), straw weight (kg/ha) and harvest index (%) indicating that selection might be effective for improvement of these characters under delayed sown condition with low input. From the findings of this investigation, one genotype viz., Gandhari emerged as the outstanding genotype which yielded 4170 kg/ha and could be directly used for cultivation in delayed sown situation with low inputs. Some other promising genotypes that yielded higher than the check Manoharsali under delayed sown condition were JR 29, JR 16, Basundhara and JR 60 and could be utilized as potential parental material in the hybridization programmes designed to develop suitable rice varieties for delayed sown situation.

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