scholarly journals FERTIRRIGAÇÃO E FERTILIZANTES DE LIBERAÇÃO GRADUAL PARA A IMPLANTAÇÃO DE GRAMADO ESPORTIVO

Irriga ◽  
2020 ◽  
Vol 25 (1) ◽  
pp. 184-201
Author(s):  
Luciana Maira Tibães Kamimura ◽  
Leandro José Grava de Godoy ◽  
Roberto Lyra Villas Boas
Keyword(s):  
Dry Matter ◽  
Color Index ◽  
Dry Matter Accumulation ◽  
Green Color ◽  
Green Cover ◽  
Main Plot ◽  
Dark Green ◽  
E Mail ◽  
Gradual Release

FERTIRRIGAÇÃO E FERTILIZANTES DE LIBERAÇÃO GRADUAL PARA  A IMPLANTAÇÃO DE GRAMADO ESPORTIVO   LUCIANA MAIRA TIBÃES KAMIMURA¹; LEANDRO JOSÉ GRAVA DE GODOY² E ROBERTO LYRA VILLAS BÔAS1   ¹Departamento de Ciências Florestal, Solos e Ambiente, Faculdade de Ciências Agronômicas, Universidade Estadual Paulista, Fazenda Experimental Lageado, Avenida Universitária, nº 3780, Altos do Paraíso, CEP 18610-034 –Botucatu, SP, Brasil. E-mail: [email protected]; [email protected]. ²Campus Experimental de Registro, Universidade Estadual Paulista, Rua Nelson Brihi Badur 430, Vila Tupy, 11900-000 Registro – SP, Brasil. E-mail: [email protected]     1 RESUMO   O gramado esportivo requer cuidados para apresentar bom desenvolvimento e “jogabilidade”. O tipo de fertilizante e a forma de aplicação deste, interferem diretamente em sua qualidade. O objetivo com o presente trabalho foi de avaliar a adubação com fertilizantes de liberação gradual ou a fetirrigação, na implantação de gramado esportivo. O experimento foi em Botucatu, SP. O delineamento foi em blocos ao acaso, em parcelas subdivididas, com grama zoysia Zeon e bermuda Celebration, como parcela principal, e cinco manejos de adubação (sem adubação; fertirrigação; com fertilizantes convencionais; com fertilizante de liberação lenta; com fertilizante de liberação controlada), nas subparcelas, de janeiro a junho de 2018. As características avaliadas foram: taxa de cobertura verde, índice de coloração verde escuro, índice de grama, altura do gramado, fitomassa da matéria seca das aparas, do estolão, rizoma e da raiz, e número de cortes. A grama Zeon apresentou maior taxa de cobertura verde e maior acúmulo de fitomassa de estolões e rizomas que a Celebration. A grama Celebration apresentou maior índice de grama e de cor verde escuro que a Zeon. O manejo com fertilizante convencional proporcionou os maiores valores das características de crescimento nas duas espécies, contudo exigiu mais mão de obra.   Palavras-chave: adubação, Zoysia, bermuda, campos esportivos.     KAMIMURA, L. M. T.; GODOY, L. J. G.; VILLAS BÔAS, R. L. FERTIGATION AND GRADUAL RELEASE OF FERTILIZERS FOR PLANTING OF SPORTS TURFGRASS     2 ABSTRACT   Sports turfgrass requires care to show good development and "playability". The type of fertilizer and the way of application of this fertilizer directly interfere with its quality. The objective of the present work was to evaluate fertilizers of gradual liberation (slow or controlled) and fertigation in order to obtain higher quality of sport turfgrass. The experiment was conducted in Botucatu, SP, Brazil. The design was in randomized blocks, in subdivided plots, with Zeon and Celebration turf, as main plot, and five managements of fertilization (1. without fertilization, 2. fertigation, 3. fertilization with conventional fertilizers, 4. fertilization with fertilizer and 5. fertilization with controlled release fertilizer), in the subplots, and four replications, from January to June. The results were evaluated using the Green Index Rate, Dark Green Color Index, Grass Index, turfgrass height, Dry matter Phytomass, stolon, rhizome and root dry matter, root length and number of mowing. Zeon grass presented higher green cover rate, as well as higher dry matter accumulation of stolons and rhizomes than Celebration. Celebration grass presented grass index and dark green color index higher than those of Zeon. Management with conventional fertilizer provided the highest values of growth characteristics of the two species, but required more cuts and labor for application.   Keywords: fertilization, zoyziagrass, bermudagrass, sports fields.

scholarly journals Effect of harvest period on the quality of storage roots and protein content of the leaves in five cassava cultivars (Manihot esculenta, Crantz)

2003 ◽  
Vol 46 (2) ◽  
pp. 295-305 ◽  
Author(s):  
Edvaldo Sagrilo ◽  
Pedro Soares Vidigal Filho ◽  
Manoel Genildo Pequeno ◽  
Carlos Alberto Scapim ◽  
Maria Celeste Gonçalves Vidigal ◽  
...  
Keyword(s):  
Protein Content ◽  
Dry Matter ◽  
Starch Content ◽  
Block Design ◽  
Matter Content ◽  
Dry Matter Content ◽  
Dry Matter Accumulation ◽  
Storage Roots ◽  
Fresh Matter

The effect of harvest period on the quality of storage roots and leaves of cassava cultivars was determined in an experiment carried out in a randomized complete block design with four replications in a split plot scheme, with five cultivars in the plots and ten harvest times in the subplots. The IAC 13 cultivar had the highest rate of dry matter accumulation in the storage roots and the Mico cultivar the lowest. The period of least dry matter content in the storage roots occurred later for the Fécula Branca, Mico and IAC 14 cultivars, and the minimum starch content in the storage roots occurred later for the Fécula Branca and Mico cultivars. In general, the IAC 13, IAC 14 and Fécula Branca cultivars had higher dry matter content in the storage roots, while higher starch content in the dry and fresh matter were obtained in the Fécula Branca cultivar. The crude protein content in the leaves decreased as the plant aged.

scholarly journals FITOEXTRAÇÃO DE SAIS DO SOLO POR CAPIM-ANGOLA IRRIGADO NO VALE DO SÃO FRANCISCO, PERNAMBUCO

Irriga ◽  
2015 ◽  
Vol 1 (2) ◽  
pp. 67-73
Author(s):  
José Nunes Filho ◽  
Sérvulo Mercier Siqueira e Silva ◽  
Antônio Raimundo De Sousa ◽  
Mina Karasawa ◽  
Venézio Felipe dos Santos
Keyword(s):  
Dry Matter ◽  
Sprinkler Irrigation ◽  
Soluble Salts ◽  
Experimental Station ◽  
Irrigation Interval ◽  
Soil Preparation ◽  
E Mail ◽  
San Martín ◽  
Brachiaria Mutica

FITOEXTRAÇÃO DE SAIS DO SOLO POR CAPIM-ANGOLA IRRIGADO NO VALE DO SÃO FRANCISCO, PERNAMBUCO  JOSÉ NUNES FILHO1; SERVULO MERCIER SIQUEIRA E SILVA2; ANTÔNIO RAIMUNDO DE SOUSA2; MINA KARASAWA2 E VENÉZIO FELIPE DOS SANTOS3 1Instituto Agronômico de Pernambuco (IPA), Estação Experimental Lauro Ramos Bezerra, CEP 56700-000, Serra Talhada-PE. E-mail: [email protected] Agronômico de Pernambuco (IPA), Sede, Av. Gal San Martin, 1371, Bongi, CEP 50761-000, Recife-PE. E-mail: [email protected], [email protected], [email protected] Agronômico de Pernambuco (IPA), Sede, Av. Gal San Martin, 1371, Bongi, CEP 50761-000, Recife-PE. E-mail: [email protected]  1 RESUMO Este estudo teve como objetivo avaliar a extração de sais do solo pelo capim-angola irrigado, submetido a três sistemas de preparo do solo: gradagem, gradagem + subsolagem e gradagem + subsolagem + gessagem. O trabalho foi conduzido na Estação Experimental de Belém do São Francisco do IPA-PE, durante o período de janeiro/2013 a dezembro/2014. A irrigação foi por aspersão fixa com turno de rega de dois dias, aplicando-se 4,0 mm.dia-1. Os valores de produtividade de matéria seca foram maiores para o preparo do solo gradagem + subsolagem, totalizando 50,9 t ha-1ano-1 em seis cortes, realizados a cada 60 dias, assim como o teor de sódio (Na+) na matéria seca total da parte aérea que foi de 1,67%, superando os demais sistemas de preparo. A quantidade de sais extraídas do solo (762,8 kg ha-1ano-1) superou em 3,5 e 2,1 vezes as áreas com gradagem e gradagem + subsolagem + gessagem, respectivamente. A qualidade da forragem produzida expressa pela percentual de proteína total foi melhor com o preparo gradagem + subsolagem. O pH do solo aumentou, de modo geral, depois do cultivo com capim-angola, onde na profundidade 0 a 30 cm, passou de ligeiramente ácido pH = 5,8 para pH = 6,7, com maior neutralização no preparo de solo gradagem + subsolagem, atingindo pH = 7,0. No sistema de preparo de solo gradagem e gradagem + subsolagem o capim-angola propiciou as maiores reduções na salinidade do solo com valores de 88,0 e 86,1%, respectivamente, em relação à salinidade antes do cultivo. Houve uma melhoria expressiva do nível de sais solúveis que antes era fortemente salino, para 2,4 dS m-1, ligeiramente salino, depois do cultivo desta forrageira. Palavras-chave: Brachiaria mutica, recuperação, solos salinos.  NUNES FILHO, J., SILVA, S. M. S. e; SOUSA, A. R.; KARASAWA, M; SANTOS, V. F. dosPHYTOEXTRACTION OF SALT IN SOIL BY ANGOLA GRASS IRRIGATED IN SÃO FRANCISCO VALLEY, PERNAMBUCO STATES, BRAZIL     2 ABSTRACT This study aimed to evaluate the extraction of soil salts in angola grass irrigated, under three soil preparation systems: disking, disking + subsoiling  and disking + subsoiling + gypsum. The work was conducted in Experimental Station of Belém São Francisco IPA-PE during the period January/2013 to December/2014. Was used the sprinkler irrigation with two days irrigation interval, applied 4.0 mm/day. The dry matter yields were higher for soil preparation disking + subsoiling, totaling 50.9 t/ha/year in 06 cuts, every 60 days, as well as the sodium (Na+) in the dry matter of the shoot plant which was 1.67%, exceeding the other soil preparation systems. The amount of salts extracted from the soil (762.8 kg/ha/year) was higher by 3.5 and 2.1 times the areas with disking and disking + subsoiling + gypsum, respectively. The quality of forage produced expressed by the percentage of total protein was better with the disking + subsoiling preparation. The pH of the soil increased, in general, after the growing angola grass, where the depth 0 to 30 cm, was a slightly acid pH = 5.8 to pH = 6.7 with greater neutralization the soil preparation system of disking + subsoiling, reaching pH = 7.0. In the preparation disking + subsoiling the Angola grass provided the greatest reductions in soil salinity with 88.0 and 86.1% values, respectively, in relation to salinity before cultivation. There was a significant improvement of soluble salts level that was once strongly saline for 2.4 dS.m-1, slightly saline, after the cultivation of this grass. Keywords: Brachiaria mutica, recuperation, saline soils. 

Growth and quality of tropical forages in a temperate climate

1977 ◽  
Vol 17 (89) ◽  
pp. 991 ◽  
Author(s):  
CJ Pearson ◽  
KW Dawbin ◽  
DK Muldoon ◽  
LC Campbell
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
New South ◽  
Temperate Climate ◽  
Dry Matter Accumulation ◽  
Maize Hybrid ◽  
South Wales ◽  
Tropical Forages ◽  
Hybrid Pennisetum

Dry matter accumulation in maize, hybrid pennisetum and mid- and late-season pearl millet were assessed following planting in mid-summer at Camden, New South Wales. Productivity was high in maize and hybrid pennisetum, the maximum above-ground rate of dry matter accumulation averaging 590 kg ha-1 day-1 for 20 days for maize in March 1975. Productivity was lower in the pearl millets which lodged in April of 1975 and 1976. Organic matter digestibility was superior in maize, phosphorus concentrations were higher in hybrid pennisetum and magnesium and calcium concentrations were the same in hybrid pennisetum as in maize. The concentrations of minerals would be generally too low to maintain highly-productive livestock if they were fed exclusively on these tropical forages.

scholarly journals Effect of slow-release fertilizer on soil fertility and growth and quality of wintering Chinese chives (Allium tuberm Rottler ex Spreng.) in greenhouses

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Cheng Wang ◽  
Jian Lv ◽  
Jianming Xie ◽  
Jihua Yu ◽  
Jing Li ◽  
...  
Keyword(s):  
Soil Fertility ◽  
Dry Matter ◽  
Slow Release ◽  
Available P ◽  
Dry Matter Accumulation ◽  
Greenhouse Soil ◽  
Slow Release Fertilizers ◽  
Total P ◽  
Chinese Chives

AbstractTo avoid the negative impact of excessive fertilization on vegetable production, a decreased fertilization experiment was conducted in a multi-layer covered plastic greenhouse in 2017 to 2018. Treatments included no fertilizer (CK), traditional fertilization (TF), slow-release fertilizers (SRF), and decreased fertilization with slow-release fertilizers (DSRF). Results showed that the SRF and DSRF increased leaf length (13% and 8.3%) and chlorophyll content (7.1% and 8.2%) of Chinese chives compared to TF. Similarly, DSRF was found to increase the accumulation of dry matter accumulation of roots (22%) and the dry matter accumulation of shoots (36%) of Chinese chives. Flavonoid, soluble sugar, and soluble protein content were enhanced by 18%, 8.5%, and 4.6%, respectively, in DSRF compared to TF. Nitrate content of the SRF and SRFR decreased significantly by 26% and 35%, respectively. In addition, there was a significant increase in soil nutrient and enzyme activity in the middle and late harvest of Chinese chives under DSRF compared to TF, and there was a high correlation between soil nutrients and the quality of Chinese chives. The available P and total P content significantly differed among the different greenhouse soil samples, and this significantly affected the quality of Chinese chives. The content of available P and total P in greenhouse soil was 125.07 g kg−1 and 1.26 mg kg−1, respectively. Optimal quality was obtained. Hence, the application of DSRF promoted the growth of Chinese chives and improved soil fertility, thereby enhancing the productivity and quality of Chinese chives.

scholarly journals Durability and concentration of organic colorant in the visual quality of Discovery TM bermudagrass

2020 ◽  
Vol 26 (4) ◽  
pp. 621-632
Author(s):  
Matheus Vinícios Leal do Nascimento ◽  
Patrick Luan Ferreira dos Santos ◽  
João Victor Costa ◽  
Juliana Trindade Martins ◽  
Roberto Lyra Villas Bôas ◽  
...  
Keyword(s):  
Water Conservation ◽  
Color Index ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Visual Quality ◽  
Operating Costs ◽  
Aesthetic Quality ◽  
Green Color ◽  
Warm Weather

Abstract The painting of sports turfs with colorants is a common practice, with the main objective to maintain grass appearance for maximum aesthetic quality. Colorants are used to provide green color to grasses during periods of stress and dormancy and are considered an alternative for warm weather grasses during the winter months. Recent increases in the use of colorants is due to water conservation efforts as well as lower operating costs compared to winter overseeding. The objective of this study was to evaluate durability and doses of organic colorant in terms of visual quality of DiscoveryTM bermudagrass. The experiment was installed in the field, subdivided into plots of DiscoveryTM bermudagrass treated with lawn-specific commercial, organic colorant as follows 0 ml L-1 (Control); 33 ml L-1; 50 ml L-1; 66.6 ml L-1 (manufacturer’s recommendation); 83 ml L-1; 100 ml L-1. At 10 day intervals the green color index, reflectance, normalized difference vegetation index (NDVI), and digital images were measured and assessed. The results indicate that, given the durability of the product, doses between 66.6 and 83.3 ml L-1 are recommended.

scholarly journals Tuber yield and quality of potato chips as affected by mulch, variety, and potash levels under western Terai, Nepal

2013 ◽  
Vol 2 ◽  
pp. 121-132
Author(s):  
R Dhakal ◽  
SK Sah ◽  
SM Shakya ◽  
KB Basnet
Keyword(s):  
Dry Matter ◽  
Tuber Yield ◽  
Reducing Sugar ◽  
Potato Chips ◽  
Dry Matter Content ◽  
Dry Matter Accumulation ◽  
Net Return ◽  
Yield And Quality ◽  
Tuber Production

An experiment was conducted at Divyapuri of Nawalparasi district in the western Terai during winter season 2008/09. There were 16 treatments consisting of two mulch levels (mulched and no mulch) as main plot, two varieties (Kufri Chipsona-1 and Kufri Chipsona-2) as sub plot and four levels of potash (0, 50, 100 and 150 kg K2O /ha) as sub-sub plot arranged in split-split plot design with four replications to evaluate the effect of these treatments on tuber production and their effect on quality of potato chips. The result showed that plant height, number of shoot per plant, dry matter accumulation, number and weight of tuber per plant and tuber yield were significantly higher in Kufri Chipsona-2 than in Kufri Chipsona-1. Lower reducing sugar and browning percent of chips and higher dry matter content and chips recovery were also recorded in Kufri Chipsona-2 compared to Kufri Chipsona-1. Simple economic analysis on gross return, net return and B/C ratio were higher in Kufri Chipsona-2. However, increasing levels of potash from 0-150 kg K2O /ha increased the dry matter accumulation, LAI, number and weight of tuber per plant. The result also showed that as the level of potash increased there was a decrease level of reducing sugar and browning of chips as well. On the other hand, higher potash levels increased the percentage of fat content and recovery of chips. Also increase in potash levels resulted to increase in gross return, net return, and B/C ratio. There was no effect of mulching levels on tuber yield and quality of chips recovery. Of the two varieties, Kufri Chipsona-2 with 100 kg K2O/ha was found suitable for tuber production and recovery of chips quality. DOI: http://dx.doi.org/10.3126/ajn.v2i0.7527 Agronomy Journal of Nepal (Agron JN) Vol. 2: 2011 pp.121-132

scholarly journals Harvest Seasons and Physiological Quality of Buffel Grass cv. Aridus Seeds

2020 ◽  
Vol 12 (2) ◽  
pp. 189
Author(s):  
Josiane Cantuária Figueiredo ◽  
Andréia Márcia Santos de Souza David ◽  
Dorismar David Alves ◽  
Hugo Tiago Ribeiro Amaro ◽  
Eduardo Fontes Araújo ◽  
...  
Keyword(s):  
Dry Matter ◽  
Seed Quality ◽  
Dry Matter Accumulation ◽  
Physiological Maturity ◽  
Buffel Grass ◽  
Seed Harvest ◽  
Physiological Quality ◽  
Germination Vigor ◽  
Emergence Phase

The objective of this research is to study the maturation process of buffel grass cv. Aridus seeds in order to determine their best harvest season, aiming at maximum seed quality. During the inflorescence emergence phase, they were labeled upon showing from five to ten inflorescences emerged per m2. The first seed harvest was done 20 days after inflorescence emergence, and the other harvests were done at 5-day intervals, totaling six harvests. In each harvest season, the seeds were assessed as to water content, dry matter mass, germination, first germination count, seedlings emergence, emergence speed index, and electrical conductivity. The physiological maturity of buffel grass seeds (maximum germination, vigor and dry matter accumulation) occurs from 38 to 42 days after inflorescence emergence, moment when harvest must be done.

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