scholarly journals Effect of Nitrogen, shading and intercropping on alfalfa-ziziphus agroforestry system under arid land conditions

2016 ◽  
Vol 2 ◽  
pp. 13
Author(s):  
Saleh Mohammed Al-Zamanan ◽  
Fathy Saad El-Nakhlawy ◽  
Abdullah Elfeil
Keyword(s):  
Plant Height ◽  
Nitrogen Fertilizer ◽  
Agricultural Research ◽  
Biomass Accumulation ◽  
Agroforestry System ◽  
Leaf Nitrogen ◽  
Maximum Effect ◽  
Research Station ◽  
Leaf Nitrogen Content ◽  
Planting Distance

<p>To assess the arid lands agroforestry potential, a field experiment was performed at the Agricultural Research Station of King Abdulaziz University, located at Hada Al-Sham during the 2013 and 2014 seasons. Alfalfa was evaluated in a <em>Ziziphus</em> agroforestry system at a distance of 1 m, 2 m and 4 m from the ziziphus tree and were supplied with three different levels of nitrogen fertilizer 0 kg/ha, 200 kg/ha and 400 kg/ha in the form of commercial Urea. The fertilizer were subdivided into split doses and applied as manual broadcasting after each cutting. A split-split plot design was used with three replications. Forage growth rate and biomass accumulation were measured at ten different intervals approximately at a period of 30-40 days. Forage was harvested in 10 different cuts and all this data consisting of plant height, fresh biomass accumulation and dry biomass accumulation and leaf nitrogen content were also measured. Statistical analysis described significant impact for intercropping, planting distance and nitrogen fertilizer on all studied traits. The maximum effect of urea fertilizer was documented for the highest dose of 400 kg/ha but it was statistically non-significant to 200 kg/ha. Distance of planting from the Ziziphus tree produced variable trend for all forages at different cut numbers but 2 m produced maximum plant height and biomass accumulation for most of the cut numbers. The interaction of 200 kg N/ha, intercropping and 2 m distance produced optimum forage growth and biomass accumulation as compared to the sole plantation under no fertilization.  </p>

scholarly journals Effect of Nitrogen Fertilizer and Its Application Efficiency on Two Local Sorghum Cultivars Sorghum bicolor L. Moench

2017 ◽  
Vol 9 (4) ◽  
pp. 236
Author(s):  
Abdulla A. Mohamed Muflahi ◽  
Ahmed Saleh Basuaid
Keyword(s):  
Grain Yield ◽  
Sorghum Bicolor ◽  
Nitrogen Fertilizer ◽  
Agricultural Research ◽  
Nitrogen Efficiency ◽  
Nitrogen Fertilizers ◽  
Research Station ◽  
Nitrogen Application ◽  
Four Levels ◽  
Sorghum Bicolor L

A field experiment was carried out at El-Kod Agricultural Research Station, Abyan Delta, Abyan Governorate during the seasons 2014 and 2015 in soil sandy silt to assess four levels of nitrogen fertilizers (0, 55, 110 and 165 kg N/ha) utilizing urea fertilizer (46% N) on some crop characteristics and efficiency of nitrogen application on two local cultivars of sorghum (Sorghum bicolor L. Moench). Split plot design was applied in four replicates. Fertilizer levels were distributed in main plots whereas, the cultivars in subplots. The results revealed significant differences between cultivars Benny and Saif in all characteristics during the two seasons. Cultivar Benny was significantly superior to cultivar Saif in all crop characteristics, except the length of spike which was significantly superior in Saif cultivar compared to cultivar Benny in both seasons. The increase in nitrogen level led to significant increase in all parameters of crop growth under study in both seasons, where the highest dose of nitrogen (165 kg N/ha) gave highest grain yield (3013 and 3201 kg/ha) in both seasons respectively, while the efficiency of nitrogen utilization declined with increased level of nitrogen application and highest value in nitrogen efficiency (12.78 kg grain/kg N). The interaction between cultivars and nitrogen fertilizer showed significant differences in terms of all studied parameters during both seasons. The cultivar Benny responded to high level of nitrogen (165 kg N/ha) and gave high grain yield (3640 and 3305 kg/ha) in both seasons respectively. The results yielded significant effect for efficiency of nitrogen application on grain yield between the cultivars, the levels of fertilizers and their interaction in the first season whereas, no significant differences were detected in the second season.

scholarly journals Evaluation of yield, chemical composition and yield of essential oil of four cultivars of sweet basil (Ocimum basilicum L.) affected by different levels of nitrogen

2020 ◽  
Vol 115 (1) ◽  
pp. 171
Author(s):  
Faraj MOAYEDI ◽  
Sajad KORDI ◽  
Ali Ashraf MEHRABI
Keyword(s):  
Essential Oil ◽  
Nitrogen Fertilizer ◽  
Agricultural Research ◽  
Block Design ◽  
Ocimum Basilicum ◽  
Oil Yield ◽  
Research Station ◽  
Sweet Basil ◽  
Essential Oil Yield ◽  
Different Levels

<p><span>A field experiment was conducted to evaluate yield and some qualitative characteristics of four cultivars of sweet basil treated with different levels of nitrogen fertilizer. The experiments were located on the Agricultural Research Station of Khorramabad, Iran, during the 2016-2017 growing season. Treatments were arranged in factorial split-plot-in time in randomized complete block design with three replications. Experimental treatments were four cultivars of sweet basil (<em>Ocimum basilicum</em> ‘Italian Large Leaf’, <em>O. basilicum</em> ‘Mobarakeh’, <em>O. basilicum</em> ‘Cinnamon’ and <em>O. basilicum </em>‘Thai’), three levels of nitrogen fertilizer (0, 100 and 200 kg ha<sup>-1</sup> urea) and three harvests. The highest total dry mass (3482.4 kg ha<sup>-1</sup>) was related to ‘Italian Large Leaf’ with the application of 200 kg ha<sup>-1</sup> urea at the second harvest. The maximum (26.79 kg ha<sup>-1</sup>) essential oil yield belonged to 100 kg ha<sup>-1 </sup>urea. The highest concentrations of main constituents of essential oil, except methyl chavicol, 1,8-cineole and methyl cinnamate were obtained by control (without nitrogen fertilizer). Italian Large Leaf cultivar and application of 100 kg ha<sup>-1</sup> urea are recommended to access an acceptable agricultural yield and essential oil yield in sweet basil under the environmental condition similar to Khorramabad</span></p>

scholarly journals Soybean yield and yield components affected by the mycorrhiza and bradyrhizobium at different rates of starter nitrogen fertilizer

2017 ◽  
Vol 38 (4Supl1) ◽  
pp. 2409
Author(s):  
Mohammad Ali Aboutalebian ◽  
Masoumeh Malmir
Keyword(s):  
Nitrogen Fertilizer ◽  
Yield Components ◽  
Agricultural Research ◽  
Block Design ◽  
Fertilizer Application ◽  
Mycorrhizal Symbiosis ◽  
Research Station ◽  
Yield And Yield Components ◽  
Biological Yield ◽  
Number Of Leaves

In order to study interaction between mycorrhiza and bradyrhizobium on yield of soybean under different amounts of starter nitrogen fertilizer, a field experiment was conducted at the agricultural research station, Bu-Ali Sina University in 2015 growing season. A factorial experiment based on randomized complete block design was arranged with three replications. Experiment factors covering three levels of starter nitrogen of 0, 30 and 60 kg ha-1, bradyrhizobiumin two level of inoculated and non-inoculated and mycorrhiza including application and non-application levels. Results indicated that plant height, number of leaves per plant, yield and yield components and biological yield and mycorrhizal symbiosis percent affected by interaction of studied factors significantly. Maximum number of pod per plant achieved from combination of 30 kg Nitrogen and bradyrhizobium. Also both bio-fertilizer was able to increase number of pod per plant. Maximum 1000 seed weight obtained from inoculation of plants with bradyrhizobium and mycorrhiza simultaneously with no nitrogen utilization. Application of 60 kg ha-1 nitrogen caused to decreased mycorrhizal symbiosis about 20.22 percent in comparison with no use of starter fertilizer. Application bradyrhizobium and mycorrhiza under the application of 30 kg ha-1 nitrogen, produced the highest grain yield (511.67 g m-2) and biological yield (1223.16 g m-2).

Genetic Analysis of Pigeonpea [Cajanus cajan (L.) Millsp.] Hybrids for Yield and Yield Attributes

2020 ◽  
Author(s):  
Sandeep S. ◽  
Sujatha K. ◽  
Manikya Minnie C. ◽  
Sudha Rani C.
Keyword(s):  
Plant Height ◽  
Seed Yield ◽  
Agricultural Research ◽  
Test Weight ◽  
Research Station ◽  
High Genetic Diversity ◽  
Yield Attributes ◽  
Pod Length ◽  
Number Of Seeds ◽  
Number Of Branches

An experiment was carried-out with forty-eight hybrids of pigeonpea and two checks for nine characters at Agricultural Research Station, Tandur (Professor Jayashankar Telangana State Agricultural University). Analysis of variance revealed significant differences among the hybrids for all the nine characters studied. The results of genetic parameters revealed that, high genotypic (GCV) and phenotypic coefficients of variations (PCV) were observed for seed yield and number of pods per plant. Six characters viz., number of branches per plant, number of pods per plant, number of seeds per pod, pod length, test weight and seed yield exhibited high heritability estimates coupled with high genetic advance as per cent of mean which suggested that these traits were amenable for further improvement following simple selection methods. Character association revealed significant positive association of seed yield with plant height,number of branches per plant, number of pods per plant, number of seeds per pod and pod length. Based on divergence studies, the hybrids were grouped into nine clusters in Tocher’s method, cluster II (14 hybrids) was the largest followed by cluster I (13), cluster VI (9), cluster IV (6), cluster IX (4) and the remaining clusters were solitary (III, V, VII and VIII). Out of the nine characters studied, seed yield, days to 50% flowering, test weight and plant height contributed 85.62 per cent of the total divergence and these traits were found to be important factors for genetic differentiation in the hybrids. The overall results of the study revealed that, hybrids under cluster IV and VIII and cluster VII and VIII had maximum and minimum inter cluster distances respectively and possessing high genetic diversity for the characters viz. plant height, number of branches per plant, number of seeds per pod and yield.

scholarly journals Response of Watermelon Pulp (Citrullus colocynthoides) to Intercropped Maize (Zea mays L.) With Plants Distributions Under Different Nitrogen Fertilization Levels

2020 ◽  
Vol 12 (8) ◽  
pp. 212
Author(s):  
A. M. Sheha ◽  
Haytham Mostafa El-Shahed ◽  
Abd El Nabi Hamed Mohamed Diab
Keyword(s):  
Nitrogen Fertilizer ◽  
Field Experiments ◽  
Agricultural Research ◽  
Growth Yield ◽  
The Other ◽  
Recommended Dose ◽  
Research Station ◽  
Equivalent Ratio ◽  
Plant Distributions ◽  
Maize Plants

Two field experiments were carried out at the Experimental Farm of Gemmeiza Agriculture Research Station, Agricultural Research Center (ARC), Egypt after 2018 and 2019 summer growing seasons to determine the effect of intercropping pattern of yellow maize hybrid (single cross 168: &ldquo;SC 168&rdquo;) with watermelon pulp at three plant distributions (20 cm between hills and one plant/hill, 40 cm between hills and two plants/hill and 60 cm between hills and three plants/hill) and different levels of nitrogen fertilizer (25, 50, 75 and 100% of the recommended dose &ldquo;120 kg N fad-1&rdquo;) as well as their interactions on maize and watermelon pulp growth, yield and its attributes as well as competitive relationships and yield advantages. The experiments were carried out in split-plot design with four replicates. The main-plots were assigned to plant distributions of maize, the sub-plots were allocated to levels of nitrogen fertilizer for maize. The obtained results showed that planting maize plants on one side of terraces of 140 cm width with 20 cm between hills and leaving one plant/hill and planting watermelon pulp on the other side of the terraces produced the highest values of plant height, ear height, number of kernels row-1, 100-kernel weight and grain yield fad-1, at the same time the lowest values of ear leaf area, ear length, ear diameter and number of rows ear-1 of maize as well as the lowest values of growth, yield and its attributes of watermelon pulp during the both seasons. Mineral fertilizing maize plants with 75% of the recommended dose (90 kg N/fad) and watermelon pulp with the recommended dose produced the highest values of all studied growth characters, yield and its attributes of maize and watermelon pulp in both seasons. The highest values of land equivalent ratio (LER), relative crowding coefficient (RCC), area time equivalent ratio (ATER), land equivalent coefficient (LEC), aggressivity index (AI), monetary advantage index (MAI), actual yield (L.E.) of watermelon, Total income (L.E.) and economic return (L.E.) were obtained from planting maize plants on one side of terraces of 140 cm width with 60 cm between hills and leaving three plants/hill and planting watermelon pulp on the other side of the terraces besides fertilizing maize plants with 75% of the recommended dose (90 kg N/fad) and watermelon pulp with the recommended dose in both seasons. It can be recommended that planting maize on 60 cm between hills and leaving three plants/hill and planting watermelon pulp on the other side of the terraces besides fertilizing maize plants with 90 kg N/fad and watermelon pulp with the recommended dose to obtain the maximum values growth, yield and its attributes of watermelon pulp and competitive relationships and yield advantages of both crops under the climates conditions of Middle Delta, Egypt.

scholarly journals Evaluation of the Use of SPAD-502 Chlorophyll meter for non-destructive estimation of nitrogen status of tea leaf (Camellia sinensis L. Kuntze)

2019 ◽  
Author(s):  
Wahono A. Wahono ◽  
D. Indradewa ◽  
B. H. Sunarminto ◽  
E. Haryono ◽  
D. Prajitno
Keyword(s):  
Nitrogen Content ◽  
Nitrogen Fertilizer ◽  
Nutrient Management ◽  
Leaf Nitrogen ◽  
Leaf Nitrogen Content ◽  
Nitrogen Status ◽  
Chlorophyll Meter ◽  
Leaf N Content ◽  
Tea Leaf ◽  
Spad Readings

Efficient nutrient management requires estimating factual fertilizer requirements. This study was aimed to test the use of chlorophyll meter SPAD-502 to estimate the nitrogen status of tea maintenance leaf. The test was carried out by correlating the SPAD readings with destructively measured leaf nitrogen content using samples oGbtained from nitrogen fertilizer dosage experiments. Observations were made at 15, 32, 45 and 62 days after the application of N fertilizer treatments. The results showed that the SPAD readings and total nitrogen leaf content correlated significantly with the time of observation. Estimation of leaf N content based on the SPAD readings follows linear line equation y = 0.0311x + 1.5856 with coefficient determinant (R²) = 0.62 significantly at P less than 0.01. It was concluded that SPAD-502 chlorophyll meter is reliable to assess the leaf nitrogen content of tea maintenance leaf and is adequate to predict future nitrogen fertilizer requirements.

scholarly journals Effects of Plant Pattern and Nitrogen Fertilizer on Yield and Yield Components of Silage Corn Cultivars

2016 ◽  
Vol 4 (1) ◽  
pp. 152
Author(s):  
Mohammad Hossein Haddadi ◽  
Masoud Mohseni
Keyword(s):  
Plant Height ◽  
Agricultural Research ◽  
Dry Weight ◽  
Forage Yield ◽  
Row Spacing ◽  
Research Station ◽  
Significant Difference ◽  
Leaf Yield ◽  
Ear Height ◽  
Better Than

To study effect of sowing pattern and nitrogen on maize silage yield and its dependents components a trial was done at split-split plot design in compeletly randomized block at four replications in Qrakheil(Qaemshahr) agricultural research station in 2015 in Iran. Row spacing was chosen as main plots including: 65cm, 75cm and 85cm.Two cultivars (Sc704 and Sc770) in sub plots and three levels of N (250, 350 and 450 kg ha1) in sub-sub plots were laid out. Silage forage yield, ear and dry ear yield, leaf and dry leaf yield, plant dry weight and stem and dry stem weight,plant height , ear height,kernel number in ear row and row number in ear were measured.The results indicated that row spacing, were not affected on investigated traits. While nitrogen effected on silage yield, ear and dry ear yield, leaf and dry leaf yield, plant dry weight and stem and dry stem weight, plant height and ear height and showed significant difference. Sc704 had significant difference on plant silage weight, dry and wet stem weight with Sc770. Amount of 350kg/ha nitrogen was caused the most silage yield (36.74t/ha) and plant dry weight (16.64 t/ha) that had not significant difference with usage of 450kg/ha nitrogen(16.46 t/ha). Amount of 450kg/ha nitrogen was caused the most silage yield (37.30t/ha) that had not significant difference with usage of 350kg/ha nitrogen (36.74 t/ha). The most silage yield (38.21t/ha) obtained from Sc704 that was better than Sc770 (34.22 t/ha). The most plant dry weight (16.54) obtained from Sc704 that had not significant difference with Sc770 (15.92 t/ha).

scholarly journals Management of Leaf Blight of Garlic with Fungicides in Central Tarai of Nepal

2014 ◽  
Vol 8 ◽  
pp. 63-66
Author(s):  
Prem C.P. Chaurasia ◽  
Jang B. Prasad ◽  
Aanandi Mandal
Keyword(s):  
Plant Height ◽  
Agricultural Research ◽  
Block Design ◽  
Leaf Blight ◽  
Research Station ◽  
Insignificant Effect ◽  
Agricultural Research Station ◽  
Randomized Block Design ◽  
Bulb Yield

Management of purple blotch in garlic was carried out in 2005/06 and 2006/07 at horticultural farm of Regional Agricultural Research Station, Parwanipur in Complete Randomized Block Design with three replications. First year’s results indicated insignificant effect of fungicides on Percentage Disease Intensity (PDI) of purple blotch disease of garlic as number of sprays used seemed to be inadequate. Second year’s result revealed that two sprays of Bavistin @ 0.2% had lowest PDI value but at par to other different number of sprays of different fungicides except no spray of fungicide. Bulb yield was highest in two sprays of Dithane M-45 @ 0.3% followed by two sprays of Krinoxyl @ 0.15%, three sprays of Blitox-50 @ 0.3%. Plant height was insignificant and highest bulb weight was found with three sprays of Blitox-50 followed by two sprays of Bavistin. Two year’s combined results indicated that two sprays of Bavistin @ 0.2% had lowest PDI value and all others PDI values were at par except control. The highest bulb yield was given by two sprays of Dithane M-45 followed by three sprays of Bavistin. Plant height and bulb weight were insignificant. It can be recommended that purple blotch disease can be managed by spraying Bavistin @ 0.2% thrice at 15 days interval or any other tested fungicides to have less disease, higher bulb yield and more economic return.Nepal Agric. Res. J. Vol. 8, 2007, pp. 63-66DOI: http://dx.doi.org/10.3126/narj.v8i0.11582 

scholarly journals Genetic Variability and Path Analysis of Groundnut (Arachis hypogaea L.)

1970 ◽  
Vol 9 (1-2) ◽  
pp. 29-36 ◽  
Author(s):  
MA Zaman ◽  
M Tuhina-Khatun ◽  
MZ Ullah ◽  
M Moniruzzamn ◽  
KH Alam
Keyword(s):  
Genetic Variability ◽  
Plant Height ◽  
Seed Yield ◽  
Agricultural Research ◽  
Block Design ◽  
Positive Association ◽  
Research Station ◽  
Genetic Advance ◽  
Days To Maturity ◽  
Positive Direct

An experiment was conducted at the Research farm of Regional Agricultural Research Station, BARI, Hathazari, Chittagong during Rabi season (December to April), 2009-2010 for estimation of genetic variability, genetic parameters and correlation coefficient among different yield components in a randomized block design with three replications. Thirty four groundnut genotypes were tested in the experiment. Highly significant variations were observed among the genotypes for all the characters studied. The highest genetic coefficient of variation was observed for karnel yield per hectare, followed by karnel yield per plant, branches per plant, immature and mature nuts per plant, 100 kernal weight and plant height. The highest heritability was observed in karnel yield per pant (95.08%), followed by karnel yield per hectare (94.38%), 100 kernal weight (87.01%), immature and mature nuts per plant (82.24%, 80.32%), branches per plant (79.54%) and 100 nut weight (78.98%), while high values of genetic advance were obtained in all the characters except days to maturity and days to 50% flowering. The seed yield per plant showed the highly significant and positive association with nut size, number of nuts per plant, karnel size and days to 50% flowering. The number of mature nuts per plant had high positive direct effect on seed yield per hectare followed by nut size, shelling percentage, days to 50% flowering and days to maturity. Therefore, branches per plant, plant height, nuts per plant, nut size, karnel size, days to 50% flowering, shelling percentage and days to maturity were identified to be the important characters which could be used in selection for yield. Keywords: Genetic variability; heritability; genetic advance; groundnut DOI: http://dx.doi.org/10.3329/agric.v9i1-2.9476 The Agriculturists 2011; 9(1&2): 29-36

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