Effects of Planting Density, Cultivar and Growing Days on the Dry Matter Yield and Forage Quality of Kenaf (Hibiscus cannabinus L.) in Cheorwon, Korea

SUMMARYTwo maize cvs, FARZ 23 and FARZ 25, were grown at three densities (37,000, 53,000 and 80,000 plants/ha) in 1979 and 1980. Leaf area index (LAI) increased with increase in plant population and was at a maximum at mid-silk. Grain yield was highest at 53,000 plants/ha. There was no relation between LAI and grain yield but there was a positive correlation between LAI and total dry matter yield.

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Yield and quality of Maralfalfa forage during long days on three dairy farms in northern Puerto Rico

The Journal of Agriculture of the University of Puerto Rico ◽

10.46429/jaupr.v98i2.2516 ◽

1969 ◽

Vol 98 (2) ◽

pp. 169-177

Author(s):

Rafael Ramos-Santana ◽

Yamil Quijano-Cabrera ◽

Raúl Macchiavelli

Keyword(s):

Puerto Rico ◽

Dry Matter ◽

Forage Quality ◽

Neutral Detergent Fiber ◽

Net Energy ◽

Regression Equations ◽

Dry Matter Yield ◽

Yield And Quality ◽

Harvest Intervals

An experiment was conducted to evaluate the dry matter yield and quality performance of Maralfalfa forage obtained at six harvest intervals (HI; 40, 50, 60, 70, 80, 90 d) on three dairies in northern Puerto Rico during the long day season. The 40-day harvest interval was significantly (P < 0.05) inferior in dry matter yield to those of 60, 80, and 90 days; no significant (P < 0.05) differences in yield were observed among intervals of 40, 50 and 70 days. The 40-day interval showed the highest forage quality as indicated by crude protein content, digestibility in vitro of dry matter and neutral detergent fiber, and estimated net energy, index of relative forage quality and theoretical milk production. Although significant (P < 0.05) differences were observed in some of these criteria between 40- and 50-day harvest intervals, the latter maintained a good nutritional value in contrast to drastic losses in quality observed with the longer harvest intervals under study. The simple regression equations between digestibility in vitro of dry matter and of neutral detergent fiber versus harvest interval showed a decrease in digestibility of 2.7 and 3.0 percentage points for each additional 10 days of harvest interval, respectively.

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THE YIELD STABILITY AND QUALITY OF LEGUMES DURING TWO CONSECUTIVE, EXTREMELY DRY YEARS

Agriculture (Pol nohospodárstvo) ◽

10.2478/agri-2013-0015 ◽

2013 ◽

Vol 59 (4) ◽

pp. 167-177

Author(s):

Miriam Kizeková ◽

Ján Tomaškin ◽

Jozef Čunderlík ◽

Ľubica Jančová ◽

Janka Martincová

Keyword(s):

Protein Content ◽

Crude Protein ◽

Dry Matter ◽

Seasonal Pattern ◽

Red Clover ◽

Dry Matter Yield ◽

Crude Protein Content ◽

Crude Fibre ◽

Herbage Quality

Abstract This study highlights the effect of drought and ambient temperature on performance and herbage quality of legume monocultures and grass-legume mixtures. In a field experiment, the total dry matter yield, seasonal pattern of dry matter yield distribution, content of crude protein and crude fibre of monocultures of red clover and alfalfa and grass-legume mixtures were investigated during two consecutive dry years (2011-2012). Alfalfa cultivars Kamila and Tereza grown as monocultures or as mixtures with Festulolium braunii (cultivar Achilles) outperformed the red clover cultivars Fresko and Veles and provided a well-balanced total and seasonal dry matter yield during both years. Across all experimental years, crude protein content was significantly higher at alfalfa monocultures and mixture when compared with clover monocultures (P < 0.05). However, considerable lower content of crude fibre at clover monocultures in comparison with alfalfa ones was found. Responses of nutritive parameters of both legume species to weather variables were different. Crude protein content in red clover was independent of rainfall and temperature. In contrast, the crude fibre content correlated with temperature whereby the alfalfa monocultures showed stronger correlations (P < 0.05) than red clover monocultures.

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

Nigerian Journal of Animal Production ◽

10.51791/njap.v43i1.2783 ◽

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.

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