Establecimiento y producción de materia seca de gramíneas promisorias en el departamento de Jutiapa, Guatemala

With the aim of sclecting improved pasture grasses for the sub-humid forcst conditions in the department of Jutiapa, Guatemala, Courteen acccssions previously selected wercevaluated. A split plot randomized complete block design with four replications was used where the main plots were accessions and sub plots cutting frequency (3,5,7 and 9 weeks). Measurements were made during the periods of maximum and minimum precipitation in 1988 and 1989. Mean ground cover was 82.9% ± 8.15 and 72.5% ± 8.34 for maximum and minimum precipitation periods, respectively. Significant (P<0.01) effects of year, precipitation period, accession, cutting frequency and interactions between these variables werc found for dry matter production. The average yield under maximum precipitation was 4.3 ton/ha with B. Dictyoneura, and 6.63 ton/ha for CIAT 6133, both of which being significantly better than the other materials (P ≤ 0.05). Under minimum precipitation, cutting frequencies of 7 and 9 wceks were equal or superior to 3 and 5 weeks, with mean yield of 4.92 t / ha. Entries B. decumbens CIAT 606, P. maximun CIAT 673, P. maximun (local), and P. purpureum cv. Mott were modcrately affected by insects. The entries P. maximun (local) and C. nlemfuensis EAP 138 showed moderate damage by discase.

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Residual effects of superficial liming on tropical soil under no-tillage system

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x2016000900063 ◽

2016 ◽

Vol 51 (9) ◽

pp. 1633-1642 ◽

Cited By ~ 6

Author(s):

Claudio Hideo Martins da Costa ◽

Carlos Alexandre Costa Crusciol ◽

Jayme Ferrari Neto ◽

Gustavo Spadotti Amaral Castro

Keyword(s):

Grain Yield ◽

Dry Matter ◽

Block Design ◽

Residual Effects ◽

Available Phosphorus ◽

Long Term Effects ◽

Matter Production ◽

Randomized Complete Block Design ◽

Tillage System

Abstract The objective of this work was to evaluate the long-term effects of the surface application of lime on soil fertility and on the mineral nutrition and grain yield of soybean, and of black oat and sorghum in crop succession. The experiment was carried out on a clayey Oxisol, in a randomized complete block design, with four replicates. Treatments consisted of lime the rates of 0, 1,000, 2,000, and 4,000 kg ha-1, applied in October 2002 and November 2004. Soil samples were collected at five soil layers, down to 0.60-m depth. Surface liming was effective in reducing soil acidity and increasing Ca2+ and Mg2+ contents in the subsurface. Moreover, it increased available phosphorus contents and soil organic matter in the long term (48 to 60 months after the last lime application). Surface liming improved plant nutrition, mainly for N, Ca, and Mg, and increased dry matter production and grain yield of the crops, even in years with regular distribution of rainfall. The greatest productivities of soybean, black oat, and sorghum were obtained with the respective estimated lime doses of 4,000, 2,333, and 3,281 kg ha-1, for shoot dry matter, and of 2,550, 3,555, and over 4,000 kg ha-1, for grain yield.

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Corn production for silage intercropped with forage in the farming-cattle breeding integration

Engenharia Agrícola ◽

10.1590/s0100-69162014000400013 ◽

2014 ◽

Vol 34 (4) ◽

pp. 738-745 ◽

Cited By ~ 2

Author(s):

Veridiana Z. de Mendonça ◽

Luiz M. M. de Mello ◽

Francisco C. B. L. Pereira ◽

José O. da R. Silva ◽

Élcio H. Yano

Keyword(s):

Dry Matter ◽

Block Design ◽

Morphological Characteristics ◽

Ground Cover ◽

Dry Matter Production ◽

Panicum Maximum ◽

Corn Yield ◽

Corn Production ◽

Randomized Block Design ◽

Matter Production

Corn cropping for silage, due to the plant material exportation, intercropping with forage provides greater ground cover and straw formation for the Direct Planting System (DPS) continuity. The objective of this study was to evaluate corn production for silage in DPS intercropped with four forages (Urochloa brizantha cv. Marandu, U. ruziziensis cv. Ruziziensis, Panicum maximum cv. Tanzânia and P. maximum cv. Áries). We applied three sowing methods (in row together with corn fertilizer; by no-till sowing simultaneously to corn sowing and at V4 corn stage) and corn without intercropping. The experiment was conducted in autumn/ winter of 2010, in Selvíria - MS, in a randomized block design in factorial arrangement (4 x 3 + 1) and 4 replications. For corn, we evaluated plant height, basal stem diameter, initial and final stand and silage production and for forage dry matter production. Morphological characteristics and corn yield were not affected by intercropping when compared to sole corn crop. Forage dry matter production sown in corn row with fertilizer is a highlight, which in addition to providing greater productivity, harnesses the operation during sowing.

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Variation in Carbohydrate Reserves and Dry Matter Production of Bush Tea (Athrixia phylicoides) Grown under Different Environmental Conditions

HortScience ◽

10.21273/hortsci11197-16 ◽

2016 ◽

Vol 51 (12) ◽

pp. 1537-1541 ◽

Cited By ~ 2

Author(s):

Fhatuwani N. Mudau ◽

Ambani R. Mudau ◽

Mpumelelo Nkomo ◽

Wonder Ngezimana

Keyword(s):

Dry Matter ◽

Block Design ◽

Management Strategies ◽

Dry Matter Production ◽

Carbohydrate Accumulation ◽

Matter Production ◽

Randomized Complete Block Design ◽

Tea Plants ◽

Athrixia Phylicoides ◽

Seasonal Responses

Reserve carbohydrates are critical for herbage yields, productivity as well as management strategies of bush tea (Athrixia phylicoides DC). This study was conducted to evaluate carbohydrate accumulation in response to pruning seasons (summer, autumn, winter, and spring) involving different organs grown under different conditions and to determine mean dry matter production of bush tea. Three separate parallel trials were conducted under wild, field, and glasshouse conditions. Seasons and different growing sites were considered as treatments. Treatments for all controlled trials (field and glasshouse) consisted of seasonal pruning (winter, spring, summer, and autumn). Trials were arranged using a randomized complete block design with 25 single plants as replicates per treatment. Seasonal responses revealed that winter had the highest starch (145.0 mg·g−1) in the stems and reserve carbohydrates (480.6 mg·g−1) in the roots, whereas in the roots sugar (400.6 mg·g−1) was highest in summer. The highest significant root reserve carbohydrates occurred in winter (594.6 mg·g−1) and the lowest in autumn (fall) (313.3 mg·g−1). Bush tea plants pruned during winter had the highest overall reserve carbohydrates in the stem (598.7 mg·g−1). Under glasshouse conditions, the highest dry matter production was observed in December (midsummer) (170 g per plant); while in field-grown plants in the same month dry matter production was 400 g per plant. Therefore, the best time to maximize production of bush tea is during the spring and summer seasons.

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Growth and Productivity of Short Duration Aman Rice Genotype

Bangladesh Agronomy Journal ◽

10.3329/baj.v20i2.37085 ◽

2018 ◽

Vol 20 (2) ◽

pp. 27-36

Author(s):

MS Hasan ◽

AR Khan ◽

M Islam ◽

MM Haque

Keyword(s):

Crop Production ◽

Dry Matter ◽

Block Design ◽

Research Field ◽

Area Index ◽

Rice Genotype ◽

Matter Production ◽

Randomized Complete Block Design ◽

Biological Yield ◽

Advanced Line

A field experiment was conducted at the research field of Agronomy Department of Bangabandhu Sheikh Mujibur Rahman Agricultural University during Aman season of 2014. Twenty four day old seedlings were transplanted in the main filed in a randomized complete block design with three replications. The advanced rice line BU- 9958-40-5-1 was compared with BRRI dhan56, BRRI dhan57, Binadhan-7 and BU dhan1. Results showed that rice var. BRRI dhan57 matured earlier [81 days after transplanting (DAT)] while the advanced line took the maximum days (90 DAT) to mature in the field. Although the tallest plant (113.80 cm) was observed in BRRI dhan56 but tiller number (12.22), leaf area index (4.67) and dry matter production (398.69 g m-2) were the highest in advanced line BU-9958-40-5-1. The advanced line produced the highest grain yield (5.98 t ha-1) coupled with the highest biological yield (11.55 t ha-1) but failed to show the highest harvest index. Thus it seemed that this line was not much efficient in converting total dry matter into grain which is the ultimate target of crop production. Therefore, this result can help physiologists and breeders to determine physiological and morphological features of the advanced line BU-9958-40- 5-1 that contribute the most to increasing dry matter partition into grain.Bangladesh Agron. J. 2017, 20(2): 27-36

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Potassium doses in previous crops and effect on soybean in succession

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v22n2p90-94 ◽

2018 ◽

Vol 22 (2) ◽

pp. 90-94 ◽

Cited By ~ 1

Author(s):

João W. Bossolani ◽

Edson Lazarini ◽

Luiz G. M. de Souza ◽

Tiago de L. Parente ◽

Sheila Caioni ◽

...

Keyword(s):

Dry Matter ◽

Block Design ◽

Dry Matter Production ◽

Soybean Crop ◽

Main Crop ◽

Potassium Fertilization ◽

Randomized Block Design ◽

Matter Production ◽

Randomized Complete Block Design ◽

K Fertilization

ABSTRACT Early potassium fertilization in previous crops may be beneficial to the main crop in succession. The objective of this study was to investigate the behavior of the soybean crop as a function of potassium (K) doses in the previous crops, associated or not with K application in soybean. The experiment was carried out from 2012 to 2015 in an experimental area of the Faculty of Engineering, UNESP, Campus of Ilha Solteira-SP, located in Selvíria-MS, Brazil. For the previous crops, a randomized block design was used in a 3 x 4 factorial scheme with four replications, i.e., three previous crops (maize, sorghum and millet) and four K doses (0, 35, 70 and 120 kg ha-1 of K2O). For soybean in succession, a randomized complete block design was used in the split-plot scheme. The treatments were arranged in a 3 x 4 x 2 factorial scheme with four replicates, i.e., soybean sowing on three types of straw (maize, sorghum and millet), residual of the four K doses and with or without top-dressing K fertilization in the soybean. Millet accumulated higher K content in comparison to maize and sorghum. The return of K to the system by millet is similar to that by maize. Potassium doses in the previous crops do not alter their dry matter production and K content. Potassium fertilization in the soybean crop in succession to millet allows higher yields.

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Growth and Yield Performance of Six Aman Rice Varieties of Bangladesh

Asian Research Journal of Agriculture ◽

10.9734/arja/2020/v12i230077 ◽

2020 ◽

pp. 1-7

Author(s):

Soyema Khatun ◽

Md. Monjurul Alam Mondal ◽

Md. Ibrahim Khalil ◽

M. Roknuzzaman ◽

Md. Mahi Imam Mollah

Keyword(s):

Grain Yield ◽

Dry Matter ◽

Block Design ◽

Maximum Growth ◽

Growth And Yield ◽

Rice Varieties ◽

Yield Performance ◽

Matter Production ◽

Randomized Complete Block Design ◽

Sterile Spikelet

A field experiment was conducted with six rice varieties to determine their growth and yield performance. The experiment was laid out in a randomized complete block design (RCBD) with four replications. All the growth and yield contributing attributes varied significantly among the six rice varieties. The results revealed that in all rice varieties maximum growth performance observed at 58-68 Days after transplanting and maximum dry matter production was observed at 68 days after transplanting. Maximum number of filled spikelet observed in Binadhan-17 (164.89/ penical) and that was significantly different from other varieties. Percent of sterile spikelet was highest in BRRI dhan39 (12.9%) and that was statistically similar with Binadhan-16 (11.96%) and BRRI dhan33 (12.36%). Maximum 1000-seed weight was observed in Binadhan-17 (27.25 g). Highest grain yield was obtained from Binadhan-17 (6.13 t/h) that was significantly different from other varieties. Lowest grain yield observed in BRRI dhan39 (4.49 t/h) that was statistically similar to BRRI dhan33 (4.57 t/h) and Binadhan-7 (4.86 t/h).

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INFLUÊNCIA DA DENSIDADE DE PLANTAS, CORTES E DOSES DE NITROGÊNIO NA PRODUÇÃO DE CAPIM-PIATÃ

Nativa ◽

10.31413/nativa.v8i4.8515 ◽

2020 ◽

Vol 8 (4) ◽

pp. 523-532

Author(s):

Adriano Catossi Tinos ◽

Giuliani do Prado ◽

Beatriz Furlan Fonseca ◽

Jhésmila Ingridy Bueno ◽

Rafael Rech Bruscagin

Keyword(s):

Aerial Part ◽

Dry Matter ◽

Plant Density ◽

Block Design ◽

Soil Surface ◽

Dry Matter Production ◽

Forage Production ◽

Nitrogen Levels ◽

Matter Production ◽

Randomized Complete Block Design

O Brasil apresenta numeroso rebanho bovino e as pastagens proporcionam a maneira mais prática e econômica de fornecer forragem ao rebanho. O trabalho, conduzido na Universidade Estadual de Maringá, em Cidade Gaúcha, Paraná, objetivou avaliar o efeito da densidade de plantas e de doses de nitrogênio na produção de forragem de Brachiariabrizantha cv. Piatã. O experimento foi implantado em delineamento experimental em blocos ao acaso em esquema fatorial 4x4x10, com três repetições. Foram avaliados: i) doses de nitrogênio (0, 17, 33 e 50 kg ha-1 corte-1),aplicadas em cobertura após cada corte do pasto; ii) densidade de plantas (10, 20, 30 e 40 plantas m-2) e; iii) 10 ciclos de cortes das pastagens, realizados no decorrer do experimento. As produções de matéria fresca e seca da parte aérea da pastagem foram avaliadas. Os ciclos de corte e as doses de nitrogênio influenciaram na produção de massa fresca e seca. As maiores produções de massa fresca e seca foram obtidas na densidade de 10 plantas m-2 e, as menores, na densidade de 40 plantas m-2. O aumento da dose de nitrogênio até 50 kg N ha-1 corte-1 proporcionou incremento na produção de massa fresca e seca de pastagem de Piatã.Palavras chave: ciclo de corte; forragem; massa seca. INFLUENCE OF PLANT DENSITY AND NITROGEN DOSES ON CAPIM-PIATÃ PRODUCTION ABSTRACT: Brazil has a large cattle herd, and pastures have offered the most practical and economical way of providing them forage. This work was carried out at the UniversidadeEstadual de Maringá, in CidadeGaúcha city, Paraná state, and it aimed to evaluate the effect of plant density and nitrogen levels on forage production of Brachiariabrizantha cv. Piatã.The experiment was set out in a randomized complete block design in a 4x4x10 factorial scheme, with three replications. The evaluated factors were: i) nitrogen doses (0, 17, 33 e 50 kg ha-1 cut-1), applied on the soil surface after each cutting cycle; ii) plant density (10, 20, 30 e 40 plants m-2) and; iii) 10 pasture cutting cycles which were performed over the experiment. Fresh and dry matter productions of the pasture aerial part were evaluated. The factors cutting cycles and nitrogen levels had influenced on fresh and dry matter production of pasture. The highest yields of fresh and dry matter production were obtained at a plant density of 10 plants m-2 and the smallest yields for the plant density of 40 plants m-2. Increasing the nitrogen dose by 50 kg N ha-1 cut-1 provided an increase in the fresh and dry matter production of Brachiariabrizantha cv. Piatã.Key words: cuttingcycle; forage; dry matter.

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Growth Parameters of Transplant Aman Rice (cv. BRRI dhan 52) as Influenced by Age of Tiller Seedlings, Number of Tiller Seedlings Hill-1 and Level of USG

Journal of Environmental Science and Natural Resources ◽

10.3329/jesnr.v6i2.22104 ◽

2015 ◽

Vol 6 (2) ◽

pp. 101-108

Author(s):

KS Rahman ◽

SK Paul ◽

MAR Sarkar ◽

MS Islam

Keyword(s):

Natural Resources ◽

Plant Height ◽

Dry Matter ◽

Growth Parameters ◽

Block Design ◽

Dry Matter Production ◽

Control Treatment ◽

Matter Production ◽

Randomized Complete Block Design ◽

Effect Of Age

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh, Bangladesh to investigate the effect of age of tiller seedlings, number of tiller seedlings hill-1 and application of urea super granules (USG) on the growth parameters of transplant aman rice cv. BRRI dhan52. The experiment comprised two ages of tiller seedlings viz. 25 and 35 days old, three levels of tiller seedling hill-1 viz.1, 3 and 5 seedlings hill-1 and three USG levels viz. 0, 1.8 and 2.7g USG. The experiment was laid out in a Randomized Complete Block Design with three replications. The highest and lowest plant height was found by transplanting 25-day and 35-day old tiller seedlings at all dates of observations. By transplanting 35-day old tiller seedlings total dry matter hill-1 was found highest at 15DAT and 45 DAT. Total dry matter hill-1 was the highest in 5 tiller seedlings hill-1 and it was in lowest in 1 tiller seedling hill-1. Plant height was the highest in 5 tiller seedlings hill-1 which was as good as that of 3 tiller seedlings hill-1 and the lowest one was found in 1 tiller seedling hill-1 at 15 DAT. The tallest plant and highest total dry matter hill-1 were observed in 1.8g USG and the lowest one was observed in control treatment. Transplant Aman rice can be grown by transplanting 25-day old tiller seedling, 5 tiller seedlings hill-1 and by applying 1.8g USG for the highest plant height, more tiller and total dry matter production hill-1.DOI: http://dx.doi.org/10.3329/jesnr.v6i2.22104 J. Environ. Sci. & Natural Resources, 6(2): 101-108 2013

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Nitrogen and potassium supply and the morphogenic and productive characteristics of marandu palisadegrass

Revista Brasileira de Zootecnia ◽

10.1590/s1516-35982010000800007 ◽

2010 ◽

Vol 39 (8) ◽

pp. 1666-1675 ◽

Cited By ~ 5

Author(s):

Marcio Mahmoud Megda ◽

Francisco Antonio Monteiro

Keyword(s):

Leaf Area ◽

Dry Matter ◽

System Development ◽

Block Design ◽

Dry Mass ◽

Dry Matter Production ◽

Root System Development ◽

Randomized Block Design ◽

Matter Production ◽

Specific Length

The objective of this work was to study morphogenic characteristics, and dry matter production of roots and shoots of marandu palisadegrass (Brachiaria brizantha cv. Marandu) submitted to combinations of nitrogen and potassium, in a nutritive solution, employing silica as substrate. The experiment was carried out in a greenhouse during the summer. It was used a 5² fractionated factorial scheme with 13 combinations of nitrogen and potassium, which were distributed in a randomized block design, with four replications. The nitrogen × potassium interaction was significant for the number of tillers and leaves, for leaf area, for shoots and root section dry mass, for total length and surface and specific length and surface in the roots. Production of aerial part dry mass positively correlated with the number of tillers and leaves and grass leaf area. Nitrogen rates modulated the root system development, and the root specific length and surface decreased when high rates of nitrogen and potassium were supllied. Nitrogen and potassium influence Marandu palisadegrass morphogenic characteristics, which are determinant for grass dry matter production.

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DIFFERENT STABILITY METHODS FOR CULTIVAR RECOMMENDATION IN ELEPHANT-GRASS FOR ENERGY PURPOSES IN BRAZIL

CERNE ◽

10.1590/01047760201723042292 ◽

2017 ◽

Vol 23 (4) ◽

pp. 507-515 ◽

Cited By ~ 1

Author(s):

Veronica Brito da Silva ◽

Rogerio Figueiredo Daher ◽

Bruna Rafaela da Silva Menezes ◽

Maria Lorraine Fonseca Oliveira ◽

Maria do Socorro Bezerra Araújo ◽

...

Keyword(s):

Energy Production ◽

Dry Matter ◽

Block Design ◽

Dry Matter Yield ◽

Elephant Grass ◽

Randomized Block Design ◽

Matter Production ◽

Breeding Programmes ◽

The Stability ◽

Non Parametric

ABSTRACT The elephant-grass undergoes successive cutting and periodical evaluations that it possible to identify clones with high stability for dry matter production, which can be used for energy production. The present study was carried out to evaluate stability dry matter yield for different parametric and non-parametric methods in elephant grass genotypes for biomass production undergoes successive cutting in the agroclimatic conditions of the Norte Fluminense (RJ, Brazil). The variable measured in the 40 genotypes was dry matter yield (DMY) at 2009, 2010 and 2011 in a field study designed as randomized block design with two replicates. Each sample was grown in different environment condition. The stability methods tested were the Yates and Cochran’s, Plaisted and Peterson’s, Wricke’s ecovalence, Annicchiarico’s, Lin and Binns’ and Kang and Phan’s. Results indicated that cutting (E) and genotypes (G) influenced significantly on the performance of dry matter yield. The non-parametric stability methods were effective for the evaluation of stability in dry matter yield. Genotypes Mercker, Pinda-México, Mercker 86-México, Guaçu/IZ, Mercker Pinda, P-241-Piracicaba and Cubano Pinda were stable stability dry matter yield. Hence, there are genotypes may be exploited in future breeding programmes in order to improve productivity of upland elephant grass over environment.

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