Effect of polymer and irrigation regimes on dry matter yield and several physiological traits of forage sorghum

2012 ◽  
Vol 11 (48) ◽  
Author(s):  
M. Fazeli Rostampour
Keyword(s):  
Dry Matter ◽  
Physiological Traits ◽  
Dry Matter Yield ◽  
Forage Sorghum ◽  
Irrigation Regimes

scholarly journals Effects of row spacing and planting density of forage sorghum on dry matter yield, morphologic parameters, nutritive value, and predicted milk yield of dairy cows

2021 ◽  
Vol 10 (11) ◽  
pp. e36101119374
Author(s):  
Magno Daniel Porfirio ◽  
Marcela Abbado Neres ◽  
Claudia Anete Fuhr ◽  
Thiago Henrique da Silva ◽  
Iuli Caetano da Silva Brandão Guimarães
Keyword(s):  
Milk Yield ◽  
Dry Matter ◽  
Nutritive Value ◽  
Stem Diameter ◽  
Planting Density ◽  
Row Spacing ◽  
Dry Matter Yield ◽  
Quadratic Effect ◽  
Forage Sorghum ◽  
Whole Plant

This study was undertaken to evaluate the effects of different row spacings and planting populations on dry matter yield, nutritive value, and predicted milk yield of BRS 658 forage sorghum hybrid growing in Brazilian conditions. A late relative maturity forage sorghum [Sorghum bicolor (L.) Moench; 110 d-115d to soft dough stage; BRS 658 – Embrapa] was planted at 3 row spacing (0.5, 1.0 and 1.5 m) and at 3 planting population (50 x 103, 100 x 103, and 150 x 103 plants.ha-1). Treatments were arranged in a randomized complete block design in a 3 x 3 factorial arrangement, using 4 replicate plots per row spacing x plant population combination. At harvest, weights of whole-plant sorghum forage were obtained to calculate DM yields. Chemical composition was assessed by performing wet chemistry analysis. Plant height, stem diameter, and harvest were performed 110 days after sowing (DAS). Estimated milk yield per unit of forage and per hectare were calculated using Milk2006. Summative equations were used to predict TDN and NEL. Yield of wet and DM forage sorghum exhibited a negative quadratic response as row spacing increased, reaching the maximum yield response at row spacing of 1.23m and 1.22m, respectively. In addition, negative linear effect was detected for both wet and DM sorghum forage yield as planting density increased. Regarding agronomic measurements, sorghum height exhibited a negative linear pattern as plant density increased. Otherwise, stem diameter increased as planting density increased. Whole-plant sorghum forage DM content decreased linearly with increasing planting density. Conversely, ashes increased linearly as planting density increased. Neutral detergent insoluble protein exhibited a positive quadratic effect with increasing planting density, reaching the minimum value when planting density was 104.2 x 103 plants.ha-1. Finally, a negative quadratic effect for predicted milk yield per hectare was also observed with increasing row spacing, whereas the maximum milk yield per hectare value was detected when row spacing was 1.20m. In conclusion, taking into account a subtropical climate, the ideal row spacing and planting density recommendation for a high yield and nutritional quality sorghum forage are 1.2 m and 104 x 103 plants.ha-1, respectively.

Influence of irrigation regimes on alfalfa dry matter yield and water productivity in a semiarid subtropical environment*

2020 ◽  
Vol 69 (5) ◽  
pp. 1063-1071
Author(s):  
Murali K. Darapuneni ◽  
Leonard M. Lauriault ◽  
Dawn M. Vanleeuwen ◽  
Sangamesh V. Angadi
Keyword(s):  
Dry Matter ◽  
Water Productivity ◽  
Dry Matter Yield ◽  
Irrigation Regimes ◽  
Subtropical Environment

Productivity, relative yield and plant growth of forage corn intercroppedwith soybean under different crop combination ratio

2016 ◽  
Author(s):  
Ali Baghdadi ◽  
Ridzwan A. Halim ◽  
Radziah Othman ◽  
Martini Mohammad Yusof ◽  
Ali Reza Mahdavi Atashgahi
Keyword(s):  
Plant Growth ◽  
Dry Matter ◽  
Relative Yield ◽  
Forage Yield ◽  
The Other ◽  
Physiological Traits ◽  
Dry Matter Yield ◽  
Land Equivalent Ratio ◽  
Relative Yield Total ◽  
Yield Values

An experiment was carried out to evaluate influence of different crop combination ratios of corn and soybean in terms of forage yield in corn-soybean intercropping. The experiment compared both corn and soybean as monocultures and in different intercropping ratios from 25:75, 50:50 and 75:25 of corn to soybean. The crop combination ratio had significant effects on physiological traits and dry matter yield of forage. The ratio of 75:25 and 50:50 recorded DM yields similar to those of monocropped corn (14.77 t/ha). Relative yield total (RYT) values of intercropping were higher than that of monocrop corn and soybean. Mixtures with 50:50 combination ratio had higher mean total relative yield values (1.15) in comparison with the other ratios. Land equivalent ratio (LER) increased with corn-soybean intercropping and the highest total LER value was recorded with 50:50 ratio (1.13). The crop ratio of 50:50 gave the best combination based on DM yield, relative yield, LER of the combined forage.

scholarly journals RESPONSE OF FORAGE SORGHUM TO WATER AVAILABILITY IN A TYPIC QUARTZIPSAMMENT

2019 ◽  
Vol 32 (4) ◽  
pp. 1015-1026
Author(s):  
ILDEU DE OLIVEIRA ANDRADE JÚNIOR ◽  
SILVÂNIO RODRIGUES DOS SANTOS ◽  
MARCOS KOITI KONDO ◽  
POLYANNA MARA DE OLIVEIRA ◽  
VICENTE RIBEIRO ROCHA JÚNIOR
Keyword(s):  
Soil Water ◽  
Plant Height ◽  
Water Availability ◽  
Crude Protein ◽  
Dry Matter ◽  
Neutral Detergent Fiber ◽  
Dry Matter Yield ◽  
Acid Detergent Fiber ◽  
Area Index ◽  
Forage Sorghum

ABSTRACT The objective of this work was to determine the factors of soil water availability (FSWA) that result in the highest agronomic performance of irrigated forage sorghum, with no changes in the plants' chemical-bromatological composition. The experiment was conducted at the Montes Claros State University, Janaúba campus, MG, Brazil, in a Typic Quartzipsamment (Neossolo Flúvico Psamítico - Embrapa) with 59 mm of soil water storage capacity in the 0.0-0.3 m layer, under drip irrigation. A randomized block design with four replications and a split-plot arrangement was used, consisting of five FSWA (f0.2 = 0.20; f0.35 = 0.35; f0.5 = 0.50; f0.65 = 0.65, and f0.8 = 0.80) in the plots and two simple forage sorghum hybrids (Volumax® and BRS-655) in the split-plots. The evaluations were based on fortnightly measurements of plant height, plant transversal diameter, number of leaves per plant, leaf area index, relative chlorophyll content, stem diameter, panicle length, dry matter yield, water use efficiency, crude protein, mineral matter, acid detergent fiber, neutral detergent fiber, and lignin. The FSWA of 0.20 and 0.35 increased dry matter yield and plant height of the two evaluated sorghum hybrids. The Volumax hybrid presented more crude protein content and acid detergent fiber. The evaluated FSWA did not change the chemical-bromatological composition of the sorghum hybrids.

scholarly journals The effect of nitrogen fertilizer rates on green biomass and dry matter yield of Sorghum sp. at different growth stages

2014 ◽  
Vol 30 (4) ◽  
pp. 743-749
Author(s):  
J. Ikanovic ◽  
S. Jankovic ◽  
V. Popovic ◽  
S. Rakic ◽  
G. Drazic ◽  
...  
Keyword(s):  
Dry Matter ◽  
Weather Conditions ◽  
Growth Stages ◽  
Dry Matter Yield ◽  
Forage Sorghum ◽  
Sudan Grass ◽  
Sorghum Genotypes ◽  
Nitrogen Rates ◽  
Fertilizer Rates ◽  
Interspecies Hybrid

The paper investigated the production properties of three sorghum genotypes: NS-Dzin (forage sorghum), Zora (Sudan grass) and Siloking (interspecies hybrid) in terms of different nitrogen rates used in side dressing in 2009 and 2010. The subject of study was green biomass and dry matter yield in the stages of intensive growth and tasseling. The results have shown that there have been significant fluctuations in production indicators between the genotypes. In the total average, the lowest yield was recorded for the Sudan grass (85.41 t ha-1). Significantly higher yields were recorded for the interspecies hybrid (90.22 t ha-1) and the forage sorghum (93.51 t ha-1). Although the effect of nitrogen rates depended on weather conditions, i.e. rainfall distribution, the optimal nitrogen rate in both years was 180 kg ha-1.

Optimum harvest date of maize for biogas and silage purposes

2009 ◽  
Vol 57 (2) ◽  
pp. 119-125
Author(s):  
G. Hadi
Keyword(s):  
Dry Matter ◽  
Biogas Production ◽  
Weather Conditions ◽  
Vegetation Period ◽  
Dry Mass ◽  
Matter Content ◽  
Harvest Date ◽  
Dry Matter Content ◽  
Dry Matter Yield ◽  
Vegetative Organs

The dry matter and moisture contents of the aboveground vegetative organs and kernels of four maize hybrids were studied in Martonvásár at five harvest dates, with four replications per hybrid. The dry matter yield per hectare of the kernels and other plant organs were investigated in order to obtain data on the optimum date of harvest for the purposes of biogas and silage production.It was found that the dry mass of the aboveground vegetative organs, both individually and in total, did not increase after silking. During the last third of the ripening period, however, a significant reduction in the dry matter content was sometimes observed as a function of the length of the vegetation period. The data suggest that, with the exception of extreme weather conditions or an extremely long vegetation period, the maximum dry matter yield could be expected to range from 22–42%, depending on the vegetation period of the variety. The harvest date should be chosen to give a kernel moisture content of above 35% for biogas production and below 35% for silage production. In this phenophase most varieties mature when the stalks are still green, so it is unlikely that transport costs can be reduced by waiting for the vegetative mass to dry.

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