scholarly journals Assessment of yield, quality and nitrogen index of Agrostietum capillaris grassland as affected by fertilizations

2020 ◽  
Vol 36 (1) ◽  
pp. 101-113
Author(s):  
Aleksandar Simic ◽  
Violeta Mandic ◽  
Savo Vuckovic ◽  
Zorica Bijelic ◽  
Rade Stanisavljevic ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Nitrogen Nutrition ◽  
N Uptake ◽  
Forage Yield ◽  
Protein Yield ◽  
Mineral Fertilizers ◽  
Dry Matter Yield ◽  
Nitrogen Nutrition Index ◽  
Yield Quality

Managing N, P and K inputs in semi-natural meadow production systems is important for achieving maximum yields in livestock farming. The objective of the present study was to estimate the effect of different NPK levels (N0P0K0, N50P50K50, N100P50K50, N100P100K100, N150P100K100 and N200P150K150 kg ha-1 yr-1) on the yield, quality and nitrogen nutrition index (NNI) in a grassland community of Agrostietum capillaris (semi-natural meadow) in western Serbia. The study was conducted during the seasons of 2005-2008. The values of the investigated parameters, except for the unit N uptake, were the highest in 2004/2005 due to favorable climate conditions. The levels of nitrogen significantly increased all of the studied parameters compared to the control treatment, except for unit N uptake. Mineral fertilizers at N200P150K150 provided the highest green forage yield (25.12 t ha-1), dry matter yield (8.12 t ha-1), crude protein yield (876.3 kg ha-1), nitrogen uptake (140.2 kg ha-1) and nitrogen nutrition index (70.2%), and the lowest unit N uptake (0.0022 kg N kg DMY-1). The use of mineral fertilizers increased green forage yield, dry matter yield and crude protein yield, increasing fertilizer from lowest to highest rate increased fresh and dry matter yield, as well as protein yield. Based on the results of the study, monitoring of nutrition indices would be necessary in order to increase productivity and economic benefits.

Influence of irrigation intervals on dry matter yield, concentration of crude protein, calcium and phosphorus in Lablab purpureus and Sorghum almum fodder in the sudan savanna zone of Nigeria

2021 ◽  
Vol 32 (2) ◽  
pp. 280-286
Author(s):  
I.R. Muhammad ◽  
B. Abdullahi ◽  
A.K. Mohammed ◽  
R.J Tanko ◽  
M.S. Kallah ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Moisture Stress ◽  
Forage Yield ◽  
Dry Matter Yield ◽  
Lablab Purpureus ◽  
Dual Purpose ◽  
Irrigation Interval ◽  
Sudan Savanna ◽  
Mean Concentration

Irrigation trials were conducted in the late dry season (March to June) with Lublab (Lablab purpureus) and Columbus grass (Sorghum almum) in the Sudan savanna of Nigeria. The objective of this study was to determine the dry matter yield (IDM/ha), crude protein (CP), calcium (Ca) and phosphorus(P) in dual-purpose lablab bean and Sorghum almum at 3 irrigation schedules (5, 7 and 10 days irrigation interval). The results obtained showed dry matter yield in lablab increased (P<0.05) and varied from 1.7 to 11.7 IDM/ha. Calcium and P concentrations differed significantly (P<0.05). Mean CP for the lablab was 15.57%. Dry matter yield obtained for Sorghum almum varied (P<0.05) from 11.07 to 19.6 tDM/ha. Concentration of CP and Ca rose and declined thereafter with a mean concentration of 9.86% for CP und 0.08% for Ca while P declined consistently (P<0.05). Intervals of irrigation days had a relationship (P<0.05) with DM/ha, Ca and P in lablab. The increasing trend in foruye yield with increased irrigation interval showed optimum irrigation interval was not attained. It is therefore recommended that longer irrigation intervals be tried to determine the optimum irrigation interval after which forage yield would be depressed due to moisture stress. From the results of the present study Sorghum almum and lablab would be grown successfully at a 10-day irrigation interval. 

scholarly journals Çukurova İkinci Ürün Koşullarında Yetiştirilen Silajlık Mısır (Zea mays L.) Çeşitlerinin Verim ve Silaj Kalite Performanslarının Değerlendirilmesi

2019 ◽  
Vol 7 (sp1) ◽  
pp. 13
Author(s):  
Yasin Korkmaz ◽  
Tugay Ayasan ◽  
Sait Aykanat ◽  
Mustafa Avcı
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
Agricultural Research ◽  
Eastern Mediterranean ◽  
Protein Yield ◽  
Dry Matter Yield ◽  
Crude Protein Content ◽  
Silage Maize ◽  
Maize Varieties

The research was carried out in the Eastern Mediterranean Agricultural Research Institute-Hacı Ali location with 4 replications according to the randomized block trial design in 2013-2014. 13 public and 1 private sector maize variety were used as material in the trials. According to the results of the analysis, it was determined that the maize varieties examined showed statistically significant differences in plant properties, dry grass and silage quality. Average plant height, number of leaves, leaf ratio, stem diameter, number of cob, stem ratio, cob ratio and green grass yield were 249.9 cm, 12.97 plant/piece, 19.24%, 22.08 mm, 0.93 plant/unit, 38.40% and 4,251.57 kg/da respectively. According to the analysis, it was observed that the average crude protein content, ADF ratio, NDF ratio, crude ash content, digestible dry matter ratio, crude protein yield, dry matter rate, dry matter yield and hay yield were 8.80%, 34.91%, 59.7%, 7.2%, 61.7%, 993.9 kg/ha, 29.4%, 11,640 kg/ha 12,570 kg/ha in dry grass, respectively. For the silage of varieties, the average crude protein content, ADF ratio, NDF ratio, pH, digestible dry matter rate, dry matter ratio, crude protein yield and Fleig score were 8.22%, 29.27%, 50.48%, 3.57, 66.1%, 28.14%, 926 kg/ha and 118.35, respectively. Burak, Sasa 1 and Ada 334 genotypes performed better in terms of green yield per hectare (53,650, 50,290 and 45,630 kg/ha) and dry matter yield (14,710, 12,810 and 12,410 kg/ha). These varieties can be recommended to producers as silage maize varieties under second crop conditions in Çukurova region of Turkey.

Studies on the Productivity of Egyptian Clover and Oats under Intercropping

1989 ◽  
Vol 25 (4) ◽  
pp. 541-544 ◽  
Author(s):  
Virendra Singh ◽  
Y. P. Joshi ◽  
S. S. Verma
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Protein Yield ◽  
Dry Matter Yield ◽  
Land Equivalent Ratio ◽  
Egyptian Clover ◽  
Sole Cropping ◽  
Half Seed ◽  
Mixed Crops ◽  
Better Than

SUMMARYA trial was carried out at Pantnagar in India during 1984–85 and 1985–86 to study the productivity of Egyptian clover and oats under intercropping. Cross sowing of both the crops either at full or half seed rates and line sowing of oats in broadcast Egyptian clover was better than other intercropping systems or sole cropping in respect of herbage production, digestible dry matter yield and land equivalent ratio but crude protein yield from the mixed crops was similar to that from sole cropped Egyptian clover.

Using simple RGB Camera to estimate Nitrogen Uptake, Nitrogen Nutrition Index (NNI) and critical Nitrogen: Spring wheat case study.

2020 ◽  
Author(s):  
Jiftah Ben-Asher
Keyword(s):  
Spring Wheat ◽  
Dry Matter ◽  
Nitrogen Nutrition ◽  
N Uptake ◽  
Maximum Yield ◽  
Digital Camera ◽  
Growth Period ◽  
Growth Cycle ◽  
Nitrogen Nutrition Index ◽  
Grain Unit

&lt;p&gt;The first Nc dilution curve was based on dry matter (DM) power function. This model is limited to&amp;#160; point of singularity near zero. Another disadvantage was that it required meaasurements of DM which is time and labor consuming. Alternatively we proposed a logistic model that starts at zero and on the abscissa assumed a linear relationship between days after emergence (DAE) and DM throughout the relevant stages of wheat growth cycle. &amp;#160;&lt;/p&gt;&lt;p&gt;The Objectives of this study were to: 1) To demonstrate the feasibility of digital camera to replace laboratory tests. 2) To Determine critical N (Nc) and Nitrogen nutrition Index(NNI) of spring wheat and 3) Use N% and dry matter yield in order to calculate N uptake by wheat. This last is expected to be a tool to calculate the required amount of nitrogen to obtain maximum yield.&lt;/p&gt;&lt;p&gt;Wheat experiments were conducted in greenhouse lysimeters. Varied rates of N fertilizer (equivalent to 0&amp;#8211;180 kg ha&lt;sup&gt;-1&lt;/sup&gt;) and several&amp;#160; cultivars varying from shortest to longest ripening growth period. Nc reduced gradually from about 6% to 2%&amp;#160; ( =60-20 gr/Kg) when DM increased with DAE&amp;#160; from 0 to 14,000 kg/ha during 80 growing days.&amp;#160; NNI was stable and clearly distinct between &amp;#160;&amp;#160;maximal index (1.0 &amp;#160;and minimal index (0.2) when (DAE) was about 60;&amp;#160;&amp;#160; Photographs succeeded to replicate laboratory measurements and obtained a linear regression curve with a unity&amp;#160; slop and r&lt;sup&gt;2&lt;/sup&gt;=0.93. Nitrogen.&amp;#160; use efficiency (NUE) ranged from 50 to 65 kg&amp;#160; DM/unit N and from 30 to 50 Kg grain /unit N&amp;#160;.&lt;/p&gt;

Character Association Study Among Components of Green Fodder Yield in Ricebean

2017 ◽  
Vol 51 (04) ◽  
Author(s):  
Monica Jyoti Kujur ◽  
S. K. Bilaiya ◽  
A.K. Mehta
Keyword(s):  
Plant Height ◽  
Crude Protein ◽  
Dry Matter ◽  
Protein Yield ◽  
Direct Selection ◽  
Path Coefficient ◽  
Dry Matter Yield ◽  
Green Fodder ◽  
Fodder Yield ◽  
Selection Of

Ricebean has been categorized as underutilized crop despite its nutritive quality and fodder yielding ability benign higher than other legumes of Vigna family. In addition to its nutritive value, this crop is fairly resistant to drought and flood conditions. The purpose of this paper is to provide important traits for direct selection of fodder yielding ricebean genotypes through analysis of phenotypic and genotypic association and path coefficient. In the present study, the degree of association between yield and yield contributing attributes were estimated in 85 germplasm lines for nineteen quantitative traits so that direct selection of the promising traits may be effective for the improvement of yield potential of future genotypes of ricebean. Correlation studies indicated that green fodder yield per plant was significantly and positively associated with green fodder yield per day, number of leaves per plant, number of branches per plant, crude protein yield per plant, crude protein yield per plant per day, dry matter yield per plant, dry matter yield per plant per day, leaf stem ratio and plant height at both genotypic and phenotypic levels. Path coefficient revealed that green fodder yield per plant per day has highest direct effect and significant positive correlation towards yield. Other traits, crude protein yield per plant, dry matter yield per plant per day, days to 50% flowering, days to flower initiation and plant height were also found to be important fodder yield indicators in ricebean.

Effect of stage of maturity of forage oats on crude protein content and dry-matter yield

1984 ◽  
Vol 102 (1) ◽  
pp. 251-252 ◽  
Author(s):  
A. Haile
Keyword(s):  
Chemical Composition ◽  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
Tropical Climate ◽  
Protein Yield ◽  
High Yield ◽  
Dry Matter Yield ◽  
Crude Protein Content ◽  
Forage Crops

The management of non-leguminous annual forage crops can affect dry matter (D.M.) yields, chemical composition, and nutritive (feeding) values largely because of the stage of maturity at which the crop is harvested. After studies for selecting high-yield forage oat varieties for a highaltitude tropical climate (Haile, 1976), it was considered necessary to look into the management of forage oats so that the time of harvesting for maximum forage and crude protein yield could be established.

scholarly journals Effect of variety and cutting interval on yield and proximate composition of alfalfa (Medicago sativa L.) under irrigation in Central Gondar zone, Ethiopia

2022 ◽  
Author(s):  
Alemu Tarekegn Tiruneh ◽  
Dessalegn Gelaye Amsalu ◽  
Kifetew Kesete Adane
Keyword(s):  
Medicago Sativa ◽  
Crude Protein ◽  
Dry Matter ◽  
Large Scale ◽  
Block Design ◽  
Nutrient Content ◽  
Forage Yield ◽  
Dry Matter Yield ◽  
Harvest Frequency ◽  
Randomized Complete Block Design

Abstract Background Understanding the relationship between dry matter yield production and forage quality throughout the growing season will help to optimize the cutting intervals between harvests in different Alfalfa (Medicago sativa L.) varieties. An experiment was conducted to assess the effects of harvest frequency on forage yield and quality of 2 improved cultivars (ILRI-6984 and var. DzF-552) of alfalfa (Medicago sativa L.) in Western Dembia district over 20 months during 2017 and 2018. Four harvest frequencies (every 30, 40, 50 and 60 days) were compared in a randomized complete block design (RCBD) with 4 replications. The experiment was laid down in a randomized complete block design (RCBD) in factorial arrangement with four replications. To assess their production potential plant height (cm), number of branches per plant, fresh biomass yield (t ha−1) and dry matter yield (t ha−1) of the forge and its nutrient content were recorded. The data collected was subjected to analysis of variance (ANOVA) by using the general linear model (GLM) procedure in Statistical Analysis System (SAS) (2003) version 9.1. Results The results revealed that highest forage dry matter yield was recorded for variety ILRI-6984 harvested every 40 days (26.8 t DM ha−1) and for var. DzF-552 when harvested every 60 days (24.1 t DM ha−1) (P<0.001). While crude protein concentration tended to decline as age at harvest increased, there was little consistency in the pattern. Crude protein yields were also inconsistent across treatments but ILRI-6984 harvested every 40 days produced the highest yields (6.5 t ha−1) (P<0.001). Conclusion These preliminary findings need to be confirmed under field conditions on a large scale along with longer-term studies to examine the longevity of the stands at these harvest frequencies. Irregular harvesting based on stage of maturity should be compared with fixed inter-harvest intervals.

PRODUCTIVITY OF INTERMEDIATE WHEATGRASS AS INFLUENCED BY DATE OF INITIAL CUTTING, HEIGHT OF CUTTING, AND N FERTILIZER

1973 ◽  
Vol 53 (2) ◽  
pp. 295-301 ◽  
Author(s):  
T. LAWRENCE
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
N Fertilizer ◽  
Protein Yield ◽  
Dry Matter Yield ◽  
Crude Protein Content ◽  
Intermediate Wheatgrass ◽  
Agropyron Intermedium ◽  
Cutting Height

The interactions of three dates of initial cutting followed by one or two subsequent cuttings, three heights of cutting, and four fertilizer treatments on the dry matter yield, crude protein content, and crude protein yield of intermediate wheatgrass (Agropyron intermedium (Host.) Beauv.) were studied on irrigated land for 2 yr. Cutting on 15 June during the shot blade stage resulted in severe summer killing. Variation in height of cutting and N fertilizer levels resulted in differences in annual yields. On the basis of the 2-yr mean yield, however, these differences were masked by interaction of these factors with years. Crude protein content of the forage at cut 1 decreased with the deferment of the first cut, was not influenced by height of cutting, but increased with increases in N fertilizer. The yield of crude protein increased with increasing levels of N fertilizer and showed significant interactions for year × date of initial cutting × fertilizer and years × date of initial cutting × height of cutting. Split applications of N fertilizer showed no advantage over a single spring application in either year.

scholarly journals Effect of cutting frequency and nitrogen application on herbage yield and nitrogen content of a degraded Panicum maximum pasture.

2021 ◽  
Vol 35 (1) ◽  
pp. 114-127
Author(s):  
J. E. Asiegbu ◽  
C. C. Onyeonagu
Keyword(s):  
Nitrogen Content ◽  
Crude Protein ◽  
Dry Matter ◽  
Weekly Interval ◽  
Protein Yield ◽  
Dry Matter Yield ◽  
Fertilizer N ◽  
Herbage Yield ◽  
Cutting Frequency ◽  
Second Year

The effects of cutting frequency and levels of nitrogen on revitalization of a run-down pasture were investigated in 2000 and 2001 at Nsukka, Nigeria. Grass swards were cut at intervals of 3, 6, 9 and 12 weeks and received 0, 150, 300 and 450 kg N ha' nitrogen. Grass dry matter yield was increased from 52 to 75% at the 3 and 6 weeks intervals of cutting, respectively. Weed proportion was reduced from 48 to 25% with 6-weekly cuts compared with more frequent cutting at 3 weeks interval between cuts. Cutting interval did not affect the total herbage yield. The dry matter yields of leaf blade, stem and inflorescence fractions increased significantly with increase in interval between cuts in the second year. The percentage nitrogen content was highest with 3-weekly interval of cut and decreased with high interval of cuts in the second year. Crude protein yield (kg ha') was highest with 6- and followed by 3- and 9-weekly intervals of cut and decreased with lar cutting of 12-weekly interval. Fertilizer-N treatment significantly increased total annual herbage dry matter yield from 3,460 kg ha yrl where no fertilizer N was applied to 5,233 kg ha-yr' with application of 450 kg N ha-'. Grass dry matter as proportion of the total herbage dry matter was increased from 57 to 80% with the highest N rate of 450 kg Nha compared with where N was not applied, while the weed dry matter as proportion of the total herbage dry matter was reduced from 43 to 20% with the highest N rate of 450 kg N ha compared with where N was not applied at the second year. A combination of 6-weeks interval of cutting with 450 kg N ha' gave the highest dry matter yield. It was also adequate in suppressing weed. Frequent cutting at higher levels of fertilizer N (300 - 450 kg ha'') increased the nitrogen and crude protein percentages of forage foliage while 6-weekly interval of cuts when combined with higher N levels gave the highest crude protein yield per hectare per year in the foliage herbage. 

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