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.

scholarly journals Agroecological assessment of Sudan grass cultivars and new hybrid populations of Bashkir selection

2020 ◽  
Vol 201 (10) ◽  
pp. 2-7
Author(s):  
Rifhat Biktimirov ◽  
Zul'fira Sharipkulova ◽  
Asiya Nizaeva
Keyword(s):  
Phenotypic Plasticity ◽  
Research Methods ◽  
Environmental Conditions ◽  
Dry Matter ◽  
Regression Coefficient ◽  
Weather Conditions ◽  
Dry Matter Yield ◽  
Seed Productivity ◽  
Sudan Grass ◽  
Growing Conditions

Abstract. The purpose of research is to evaluate Sudan grass cultivars in terms of phenotypic plasticity and yield stability in changing environmental conditions. Research methods. The article presents the data of the research conducted in conditions of the Cis-Ural steppe of the Bashkortostan Republic in 2016–2019. 12 Sudan grass cultivars and hybrid populations, selected in the Bashkir Research Institute of Agriculture, being of varied ripeness, were studied for yielding capacity, stability, and plasticity. Weather conditions in the years of research on temperature and water regimes were different. That made it possible to evaluate the lines in contrasting conditions of cultivation. Results. The most adaptive varieties for forage cultivation were identified: Demskaya variety and populations 285, 318 and 395 with a regression coefficient bi close and equal to one, are characterized as plastic; populations 392, 400, 446/2 are responsive to better growing conditions and characterized as intensive – bi > 1. When cultivated for seeds, population 318 is defined as plastic, while Smena, Demskaya, Chishminskaya rannyaya, Yaktash cultivars, populations 276, 285, 392, 446/2 and 395 are responsive to improved growing conditions and identified as intensive. The best populations according to the comprehensive assessment of varieties for dry matter yield, plasticity and stability are: 400 (yield 69.7 c/ha; plasticity – 1.1; stability – 40.5) and 395 (69.2 c/ha; 1.0; 36.4, respectively). Populations 358 (yield 29.6 c/ha; plasticity – 1.0; stability – 5.2) and 318 (28.1 c/ha; 0.9; 4.2, respectively) were recognized as the best Sudan grass cultivars and populations in terms of seed productivity, plasticity and stability, Scientific novelty. The article collects and presents the materials of many years of the study on Sudan grass phenotypic plasticity and stability.

scholarly journals The genotype traits of forage sorghum, Sudan grass and their interspecies hybrid in the conditions of intensive nitrogen nutrition

Genetika ◽  
2010 ◽  
Vol 42 (2) ◽  
pp. 349-358 ◽  
Author(s):  
Jela Ikanovic ◽  
Djordje Glamoclija ◽  
Radojka Maletic ◽  
Snezana Jankovic ◽  
Marjenka Tabakovic ◽  
...  
Keyword(s):  
Nitrogen Nutrition ◽  
Morphological Characteristics ◽  
Weather Conditions ◽  
Total Biomass ◽  
Forage Sorghum ◽  
Sudan Grass ◽  
Leaf Mass ◽  
The Subject ◽  
Optimal Quantity ◽  
Interspecies Hybrid

The subject of this study is a three-year study (carried out during 2007, 2008 and 2009) of the morphological characteristics variability in three genotypes NS-Dzin (Forage Sorghum), Zora (Sudan grass) and Siloking (interspecies hybrid) depending on the amount of nitrogen used for plant nutrition. For the height and mass analysis of fresh stems and leaves as well as leaf mass and leaf portion in the total biomass, samples were taken from the first swath when the effect of the used nitrogen amounts was the greatest. The results have shown that there are significant variations in the tested properties between the genotypes. The Siloking genotype had the highest total biomass during all three years. The largest leaf mass was found in the NS-Dzin genotype, while the Zora genotype had the highest leaf portion in the three-year average. The effect of nitrogen use depended on the weather conditions, as well as the layout of the rainfall, so that the optimal quantity was 105 kg ha-1 during the first and the second year, and 150 kg ha -1 during the third year.

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.

scholarly journals Effects of poultry manure and nitrogen rates from two production systems on dry matter yield, and nutritive value of Columbus grass (Sorghum almum)

2021 ◽  
Vol 43 (1) ◽  
pp. 378-384
Author(s):  
M. Baba ◽  
I. Lamir ◽  
I. Abdullahi ◽  
M. S. Sadique
Keyword(s):  
Body Weight ◽  
Dry Matter ◽  
Nutritive Value ◽  
Production Systems ◽  
Poultry Manure ◽  
Forage Quality ◽  
Stem Diameter ◽  
Dry Matter Intake ◽  
Dry Matter Yield ◽  
Nitrogen Rates

The experiment was conducted at screen house of Centre for Dry land Agriculture, Bayero University Kano, in the year 2016. The objective of the study was to determine the effects of poultry manure and nitrogen rates from battery cage and deep litter systems on dry matter yield, morphological characteristics and forage quality of Columbus grass (Sorghum almum). Sorghum almum seeds were sown in 32 plastic containers (dimensions 26 cm height, 28 cm top width and 20cm base width) perforated at the bottom containing 12 kg mixture of sandy and loamy soil in ratio of 1:3. The treatments consisted of poultry manure from two production systems (Battery cage and Deep litter) and nitrogen rates (50, 60, 70 and 80 kgN/ha) in a 2x4 factorial combined in a completely randomized design. Parameters measured were dry matter yield, number of tillers and stem diameter at the late boot stage of Sorghum almum, in addition, forage quality parameters (CP, ADF NDF, digestible dry matter (DDM) dry matter intake as a percentage of body weight (DMI) and relative feud value (RFV)) were also evaluated. The results revealed no significant (p>0.05) difference between battery cage and deep litter fertilized Sorghum almum but deep litter fertilized Sorghum almum had numerically higher dry matter yield (5062.30 kg/ha) than battery cage (4400.40 kg/ha) Number of tillers and stem diameter were found to be significantly greater (p<0.05) in Deep litter (2.56 and5.70mm respectively) compared to Battery cage (1.13 and 5.08mm respectively. Both dry matter yield and stem diameter of Sorghum almum were significantly (p<0.05) highest at 80 kg N/ha. Crude protein was observed to be significant (P<0.05) in Sorghum almum fertilized with poultry manure from deep liter (11.35%) compared with buttery cage (10.05 %). The CP value was observed to increase with increased nitrogen rate with the highest value recorded at 80 kg N/ha (1.71%). Dry matter intake (us a percentage of body weight) was equally greater (p<0.05) in Sorghum album fertilized with deep litter (2.63%) compared to battery cage (2.49%). The value for NDF was significantly higher in sorghum almum fertilized with battery cage, while that of ADF was greater in deep litter it can be concluded that, Sorghum almum fertilized with manure from deep litter system produced better yield and nutritive value.

A comparative analysis of the growth of sweet and forage sorghum crops. II. Accumulation of soluble carbohydrates and nitrogen

1986 ◽  
Vol 37 (5) ◽  
pp. 513 ◽  
Author(s):  
R Ferraris ◽  
DA Charles-Edwards
Keyword(s):  
Dry Matter ◽  
Plant Density ◽  
Nitrogen Concentration ◽  
Sowing Date ◽  
Soluble Carbohydrates ◽  
Growth Stages ◽  
Degree Days ◽  
Forage Sorghum ◽  
Density Effects ◽  
Sowing Dates

Well-watered crops of sweet sorghum (cv. Wray) and forage sorghum (cv. Silk) were grown in south-eastern Queensland. Treatments consisted of four sowing dates, two intra-row spacings and harvests taken at six physiological growth stages from the third ligule to 3 weeks after grain maturity. Plant density effects on the concentration of sugars and nitrogen were slight, and changes in yields of these components were a function of density effects on dry matter yields. At any growth stage, the concentration of sugars in both cultivars was decreased with delay in sowing date. The delay in sowing date led to an increased nitrogen concentration in cv. Wray, but in cv. Silk the nitrogen concentration was highest in early and late sowings. At maturity, the concentration of sugars in cv. Wray averaged 40'70, 10 times the level in cv. Silk. In both cultivars, accumulation was a near linear function of either time or radiation sum. The partitioning of carbohydrate differed little between cultivars but altered with their ontogeny. The efficiency of light use for sugars production was greater in cv. Wray and altered with ontogeny. In contrast, concentration of nitrogen was similar for both cultivars and decreased curvilinearly with time or degree days. The partitioning of nitrogen altered with ontogeny and the amount partitioned to leaf material was greater in cv. Silk pre-anthesis but was less post-anthesis. Yield of stem sugars in cv. Wray exceeded 10 t ha-1 when the crops were sown early in the season, but was only 3 t ha-1 with late-sown crops.

Effect of temporary rise of saline water table on dry matter yield of oats (Avena byzantina)

1974 ◽  
Vol 14 (71) ◽  
pp. 811 ◽  
Author(s):  
FG Abd-El-Kaddous
Keyword(s):  
Water Table ◽  
Dry Matter ◽  
Saline Water ◽  
Growth Stages ◽  
Dry Matter Yield ◽  
Water Tables ◽  
Temporary Rise ◽  
Effect On Yield ◽  
Water Table Rise ◽  
Yield Of Oats

In 1968 and 1969, at Kerang, Victoria, the dry matter yield of oats (Avena byzantina) grown on a sodic soil were measured under conditions of fluctuating saline (31 mmhos cm-1) water tables. In each year, a water table was established for 14 days at one of three growth stages and at depths varying from 7.5 to 90 cm. Relative to the yield obtained when the water table remained at 90 cm depth, dry matter yields were reduced by 70 per cent (1968) and 79 per cent (1969) by one temporary water table rise to a depth of 7.5 cm for 14 days. Intermediate reductions in yields occurred when the water tables rose temporarily to intermediate depths from 82.5 cm to 15 cm (7.5 cm intervals). The growth stage at which the water table rise occurred had no significant effect on yield, except in the second period in 1969 when yield was reduced during conditions of high temperature and low evaporation.

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