scholarly journals Thermal and Soil Moisture Amplitude of Intercropped Crops

2020 ◽  
pp. 1-13
Author(s):  
João Danilo Barbieri ◽  
Paulo Sérgio Lourenço de Freitas ◽  
Rivanildo Dallacort ◽  
Cornélio Alberto Zolin ◽  
Diego Fernando Daniel ◽  
...  
Keyword(s):  
Zea Mays ◽  
Soil Moisture ◽  
Soil Temperature ◽  
Zea Mays L ◽  
Dry Mass ◽  
Development Stage ◽  
Grain Production ◽  
Lower Amplitude ◽  
Thermal Amplitude ◽  
Soil And Water

Conservation systems of production are promoting yields and profitability, intercropping systems aim at sustainable maximization of soil and water use, and have become an alternative for regions characterized by relatively short rainy periods and high temperatures. The objective of this work was to evaluate the influence of the intercropping system between maize (Zea mays L.) and C. juncea (Crotalaria juncea L.) on soil temperature and humidity for the municipality of Tangará da Serra in Brazil. The treatments consisted of the single crop of maize and crotalaria, as well as their intercrop cultivation, the soil temperature was evaluated at depths of 0.10, 0.20, 0.30 and 0.40 m and soil moisture at depths of 0.20 and 0.40 m. The components of grain production and yield of maize were also evaluated, for crotalaria, height, diameter and dry mass of the plants were evaluated. The highest soil temperature occurred at 14 h with an average of 21°C for all three treatments. The intercropping of maize with crotalaria gave the soil a lower amplitude of the soil temperature and kept the soil moisture high with values of 0.3 m3 m-3 in the depth of 0.20 m. The development stage presented the lowest mean thermal amplitude and higher humidity for the intercrop system. The yield of maize in an intercrop was reduced by 42.7% compared to a single crop.

scholarly journals EFEITO DE DIFERENTES ESTRATÉGIAS DE IRRIGAÇÃO SUPLEMENTAR SOBRE A PRODUÇÃO DE GRÃOS E SEUS COMPONENTES NA CULTURA DO MILHO

Irriga ◽  
2009 ◽  
Vol 14 (3) ◽  
pp. 254-267 ◽  
Author(s):  
Ana Rita Costenaro Parizi ◽  
Adroaldo Dias Robaina ◽  
Ana Carla Dos Santos Gomes ◽  
Fatima Cibele Soares ◽  
Cleiton José Ramão ◽  
...  
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Irrigation Management ◽  
Dry Mass ◽  
Grain Production ◽  
Supplemental Irrigation ◽  
Medium Mass ◽  
Culture Cycle ◽  
And Control ◽  
Santa Maria

EFEITO DE DIFERENTES ESTRATÉGIAS DE IRRIGAÇÃO SUPLEMENTAR SOBRE A PRODUÇÃO DE GRÃOS E SEUS COMPONENTES NA CULTURA DO MILHO  Ana Rita Costenaro Parizi1; Adroaldo Dias Robaina2; Ana Carla dos Santos Gomes1; Fátima Cibele Soares1; Cleiton José Ramão3; Marcia Xavier Peiter2; Leonardo Calegaro41Universidade Federal de Santa Maria, Santa Maria, RS, [email protected] de Engenharia Rural, Universidade Federal de Santa Maria, Santa Maria, RS 3Universidade Federal do Pampa, Itaqui, RS 4Departamento de Ciências Agrárias, Universidade Regional Integrada do Alto Uruguai e das Missões, URI Santiago, Santiago, RS   1 RESUMO O objetivo deste trabalho foi avaliar os efeitos da aplicação de quatro estratégias de irrigação sobre a produção de grãos e componentes da cultura do milho na região de Santiago, RS. Utilizou-se o delineamento experimental inteiramente casualizado, tendo cinco tratamentos e quatro repetições que constituíram de diferentes estratégias de irrigação 60%, 80%, 100%, 120% da evapotranspiração de referência (ETo), e uma testemunha 0% da ETo. No final do ciclo da cultura realizaram-se as determinações dos componentes de produção de grãos e da matéria seca total. O número de espigas.planta-1 apresentou média de 1,0, o número de grãos.espiga-1 375,04 e a massa média do grão 0,30 g. A massa seca dos grãos.planta-1, massa seca das folhas.planta-1, massa seca do sabugo.planta-1 e massa seca total apresentaram valores máximos para o tratamento de 100% da Eto. A maior produção de grãos verificada e maior eficiência de uso da água foram obtidas no tratamento de 100% da Eto, sendo que a menor produção ocorreu no tratamento de 0% da Eto. O uso da irrigação suplementar na cultura do milho aumentou a produtividade de grãos para as condições, características do período e fatores considerados. UNITERMOS: Zea mays L., manejo de irrigação, produção de grãos  PARIZI, A. R. C.; ROBAINA, A. D.; GOMES, A. C. dos S.; SOARES, F.C.; RAMÃO, C. J.; PEITER, M. X.; CALEGARO, L. EFFECT OF DIFFERENT SUPPLEMENTAL IRRIGATION STRATEGIES ON GRAIN PRODUCTION AND THEIR COMPONENTS IN CORN CULTURE   2 ABSTRACT The aim of this work was to evaluate the effects of four irrigation application strategies on grain production and their components in corn culture in Santiago, RS. The experimental design was entirely randomized with five replications and four treatments that consisted of different strategies of irrigation 60%, 80%, 100%, 120% of the reference evapotranspiration (ETo), and control 0% of ETo. At the end of culture cycle grain production components and total dry matter were determined. The number of corn ear.plant-1 presented average of 1.0; the number of grains.corn ear-1 was 375.04 and the medium mass of grain 0.30g. The dry mass of grains.plant-1, dry mass of leaves.plant-1, dry mass corn cobs.plant-1 and its total dry mass presented maximum values for treatment 100% of Eto. The largest production of grains verified and larger efficiency of water use was obtained in treatment 100% of Eto, and the smallest production occurs in treatment of 0% of Eto. The use of supplemental irrigation in corn culture increased the productivity of grains for conditions, period characteristics and considered factors.  KEYWORDS: Zea mays L., irrigation management, grain production

scholarly journals The Effect of Tillage Treatments on Soil Temperature at Planting and on Corn (Zea mays L.) Yield

2001 ◽  
pp. 40-44
Author(s):  
Miklós Pakurár ◽  
László Lakatos ◽  
János Nagy
Keyword(s):  
Zea Mays ◽  
Soil Temperature ◽  
Zea Mays L ◽  
Time Period ◽  
Soil Temperatures ◽  
Time Periods ◽  
Time Required ◽  
Corn Hybrid

The effect of soil temperature was evaluated on the yield of the Occitan corn hybrid at a depth of 5 cm. We examined this effect on the time required from planting to emergence for three average durations: five, ten and fifteen days, all calculated from the day of planting. Winter plowing (27 cm), spring plowing (23 cm), disc-till (12 cm) treatments and 120 kg N per hectare fertilizer were applied. As a result of our analysis, we determined the post planting optimum soil temperatures for various time periods. The average soil temperature for a time period of 15 days post planting is the most usable for determining actual yields, followed by ten days, with five days proved to be the least usable (winter plow R2 = 0.86, spring plow R2 = 0.87, disc-till R2 = 0.64).

scholarly journals Influence of soil conservation practices on soil moisture and maize crop (Zea mays L.) productivity in Centre Benin

2020 ◽  
Vol 14 (1) ◽  
pp. 8-23
Author(s):  
Tobi Moriaque Akplo ◽  
Alladassi Félix Kouelo ◽  
Agassin Arcadius Martinien Ahoglé ◽  
Pascal Houngnandan ◽  
Hessou Anastase Azontondé ◽  
...  
Keyword(s):  
Zea Mays ◽  
Soil Moisture ◽  
Soil Conservation ◽  
Zea Mays L ◽  
Conservation Practices ◽  
Maize Crop

Fertilisation and irrigation effects on maize (Zea mays L.) grain production

2004 ◽  
Vol 32 (1) ◽  
pp. 151-158 ◽  
Author(s):  
M. Pakurar ◽  
J. Nagy ◽  
S. Jagendorf ◽  
I. Farkas
Keyword(s):  
Zea Mays ◽  
Zea Mays L ◽  
Grain Production ◽  
Irrigation Effects

ARRANJO POPULACIONAL PARA A VARIEDADE UENF-14 DE MILHO PIPOCA

2017 ◽  
Vol 16 (3) ◽  
pp. 401
Author(s):  
CÁSSIO VITORAZZI ◽  
ANTONIO TEIXEIRA AMARAL JÚNIOR ◽  
LILIAM SILVIA CANDIDO ◽  
ISMAEL LOURENÇO DE JESUS FREITAS ◽  
THIAGO RODRIGUES DA CONCEIÇÃO SILVA
Keyword(s):  
Zea Mays ◽  
Grain Yield ◽  
Rio De Janeiro ◽  
Zea Mays L ◽  
Block Design ◽  
Grain Production ◽  
Maize Population ◽  
The North ◽  
Randomized Complete Block Design ◽  
Janeiro State

 RESUMO - A adequação do arranjo populacional está entre as técnicas que podem maximizar a produtividade da cultura do milho. Daí a importância das pesquisas que buscam estudar o desempenho de cultivares de milho e milhos especiais, a fim de determinar o arranjo de plantas ideal. O objetivo deste trabalho foi avaliar o desempenho da variedade UENF-14, de milho pipoca, cultivada em diferentes arranjos populacionais, na safra e safrinha, para otimizar a recomendação fitotécnica para os produtores rurais do Norte Fluminense. Foram instalados dois experimentos em Campos dos Goytacazes-RJ. Um na safrinha 2011 utilizando a variedade UENF-14 e o híbrido experimental P2 x P9, e o outro na safra 2011-2012, com a variedade UENF-14 e o híbrido comercial IAC-112. O delineamento experimental, nos dois experimentos, foi o de blocos casualizados arranjados em parcelas subsubdivididas, em que as parcelas foram compostas pelos genótipos, as subparcelas constituídas pelos espaçamentos entre linhas de semeadura (0,45, 0,60 e 0,90 m) e as subsubparcelas compostas pelas densidades de plantas (60.000, 75.000 e 90.000 plantas ha-1). A UENF-14 apresentou desempenho superior aos híbridos, demonstrando seu potencial para cultivo na região Norte Fluminense. Houve aumento do rendimento de grãos com a diminuição do espaçamento entre linhas de plantio. Para a variedade UENF-14, a redução do espaçamento entre linhas de plantio foi vantajosa para a produção de grãos, independentemente da época de semeadura.Palavras-chave: Zea mays L., densidade de semeadura, espaçamento entre linhas, épocas de semeadura.  POPULATION ARRANGEMENT FOR THE VARIETY OF POPCORN UENF-14 ABSTRACT - The adequacy of the maize population arrangement is among the most important techniques for obtaining higher yields. Therefore, many researchers have been conducting an attempt to study the performance of corn and specialty corn. The objective was to evaluate the performance of the popcorn variety UENF-14 in different population arrangements, in the harvest season and off-season. Two experiments were carried out in Campos dos Goytacazes, North of Rio de Janeiro State, Brazil, in the off-season 2011, using the UENF-14 variety and the experimental hybrid P2 x P9, and in the season 2011-2012 using UENF-14 and the commercial hybrid IAC-112. The treatments were arranged in randomized complete block design with split plots, in which plots were composed by popcorn genotypes, the subplots consisting of three spacings between sowing lines (0.45, 0.60 and 0.90 m) and the subsubplots composed of three plants per hectare densities (60,000, 75,000 and 90,000 plants.ha-1). The variety UENF-14 presented higher performance than the hybrids, demonstrating its potential for recommendation to the North of Rio de Janeiro State. There was an increase of grain yield by reducing the spacing between the plants rows. The cultivation of the variety UENF-14 reducing the spacing between rows was advantageous for grain production, regardless of planting date.Keywords: Zea mays L., densities of plants, spacing between rows, sowing times.

scholarly journals Water restriction in different phenological stages and increased temperature affect cowpea production

2021 ◽  
Vol 45 ◽  
Author(s):  
Juliane Rafaele Alves Barros ◽  
Miguel Julio Machado Guimarães ◽  
Welson Lima Simões ◽  
Natoniel Franklin de Melo ◽  
Francislene Angelotti
Keyword(s):  
Air Temperature ◽  
Water Availability ◽  
Abiotic Factors ◽  
Dry Mass ◽  
Development Stage ◽  
Grain Production ◽  
Water Restriction ◽  
Phenological Stages ◽  
Increased Temperature ◽  
Temperature Regimes

ABSTRACT Water deficit and high temperatures are abiotic factors that most limit plant growth and development. However, its effects depend on crop development stage and on stress duration and intensity. Thus, the objective of was to evaluate the development of cowpea subjected to water restriction in different phenological stages and to increase in air temperature. The experiment was conducted with the cultivar ‘Carijó’, in growth chambers, in a 4 x 3 x 2 factorial arrangement, corresponding to levels of water availability (25, 50, 75, and 100%,), phenological stages (vegetative, flowering and pod filling) and temperature regimes (T°1: 20-26-33 °C e T°2: 24.8-30.8-37.8 °C), respectively. Reduction of water availability in the vegetative and flowering stages caused decrease in grain production. The percentage of aborted flowers was higher in plants maintained under an increased temperature of +4.8 °C, with consequent reduction in grain production. Higher water availability values favored shoot and root dry mass production. Increase of 4.8 °C did not affect shoot and root dry mass but reduced water use efficiency by about 83%. The highest enzymatic activities of CAT, GPX and SOD were found in plants subjected to the temperature of +4.8 °C. Only APX showed lower enzymatic activity with increasing temperature. The cv. ‘Carijó’ is more sensitive to the 4.8 °C increase in air temperature than to water deficits.

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