Effect of Nitrogen Fertilization on Yield and Quality of Some Salad Crops

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 444a-444
Author(s):  
M.I. Abdalla ◽  
M. M.A. Abdalla ◽  
S.A. Abdel-Aal ◽  
I.A. Farag

The present experiments were carried out at the Assiut Univ. Experimental Farm during two winter seasons, 1994/1995 and 1995/1996, to study the effect of nitrogen source and level on growth, yield, and quality of salad crops (lettuce, parsley, and roquette). Nitrogen sources were urea, ammonium nitrate, and ammonium sufate. Three nitrogen levels, namely 20, 40, and 80 kg N/feddan, in addition to organic manure (2.028% N), in addition to the control, were used. Plant height, number of leaves (parsley and roquette), number of non-edible leaves (in lettuce) were significantly increased with urea followed by ammonium nitrate. Plant fresh weight, weight of edible part (in lettuce), and total yield/feddan were significantly higher with urea than ammonium nitrate or ammonium sulfate. The lowest content of nitrate and nitrite in leaves of the salad crops was obtained with ammonium sulfate followed by ammonium nitrate, while urea gave the highest values. Application of organic manure produced plant height, number of leaves per plant, plant fresh weight, total yield, dry matter content almost equal to that obtained from 40 or 20 kg N/fed. Nitrate and nitrite content were at their lowest value when organic manure was used. Plant height, number of leaves, non-edible leaves, weight of plant and total yield/feddan were significantly increased with increasing nitrogen rates from 0 to 80 kg/feddan. Using 80 kg N/fed. gave the highest dry matter, nitrate, and nitrite content.

2021 ◽  
Vol 8 (01) ◽  
pp. 8-15
Author(s):  
Md. Shaheeduzzaman Sagor ◽  
Md. Mokter Hossain ◽  
Tamanna Haque

This study was conducted to examine growth, yield and quality performances of five turmeric genotypes. The experiment was laid out in randomized complete block design with three replications. Results showed that different genotypes significantly influenced on plant growth, yield and quality of turmeric. The highest germination (97 %), number of leaves (8.16), plant height (69.51 cm), weight of rhizome (47.06 g/plant) and yield (6.01 t/ha) was found from “Sinduri Holud” (BARI Holud-2). But this genotype scored the lowest percentage in curcumin (0.30 %) and low dry matter (22.54 %). While local genotype (“Mota Holud”) performed the lowest germination (87.57 %) and minimum plant height (53.52 cm), leaf area (127.42 cm2), number of fingers per rhizome (3.73), weight of rhizome (34.16 g/plant) and yield (4.78 t/ha). But this genotype contained the highest curcumin (2.10 %), and “Mala Holud” attained maximum dry matter (25.20%). Based on flesh color, dry matter and curcumin contents local turmeric genotypes performed superior than that of the check varieties. From the findings of this investigation, it can be concluded that local genotypes can be used in breeding program for development of high quality turmeric in Bangladesh.


2017 ◽  
Vol 2 (02) ◽  
pp. 197-200
Author(s):  
Rajeev Kumar ◽  
Sanjeev Kumar ◽  
Anil Kumar ◽  
B. B. Singh ◽  
Ravendra Singh ◽  
...  

A field experiment was conducted in the Department of Agricultural Botany, Janta Mahavidiyalaya Ajeetmal, Auraiya (C. S. J. M. University, Kanpur) during 2014, to evaluate the effect of various levels of nitrogen on growth, yield and quality of fodder maize. 3 treatments were taken up (viz.,T1 75, T2 100 and T3 125 kg nitrogen ha-1 along with control (T0).Plant height, dry matter accumulations (t ha-1), forage yield (t ha-1) increased with increasing levels of nitrogen, while stem diameters (cm), leaf area (cm2), fresh weight (g), crude protein percent decreased with increasing levels of nitrogen.


2019 ◽  
pp. 36-41
Author(s):  
N.P. Chekaev ◽  
N.V. Koryagina

В статье приведены результаты исследований по изучению влияния минеральных удобрений и куриного помета на продуктивность клубней картофеля отечественной и зарубежной селекции. В исследованиях, проведенных в 2017-2019 гг. на черноземе выщелоченном в условиях Пензенской области, установлено, что при внесении куриного помета и минеральных удобрений повышается урожайность и качество клубней, что непосредственно связано с обеспеченностью растений питательными веществами. Применение куриного помета в дозе 2 т/га позволило повысить общую урожайность клубней исследуемых сортов картофеля на 22,6-29,5, товарных клубней на 24,3-35,5 по сравнению с вариантом без удобрений. Наибольшую урожайность наблюдали на вариантах с совместным применением мочевины в дозе N30 и сульфата калия в дозе К60 и на вариантах с совместным применением аммофоски в дозе N30Р30К30 и сульфата калия в дозе К30. Применение умеренных доз минеральных удобрений и куриного помета в дозе 2 т/га увеличивает не только урожайность клубней картофеля, но и содержание в клубнях сухого вещества, крахмала и нитратов, не превышающих значения ПДК. Совместное применение азотно-калийных и азотно-фосфорно-калийных удобрений с добавлением сульфата калия в дозах К60 и К30 позволяют улучшить качественные показатели клубней по всем изучаемым сортам.The article presents the results of studies on the influence of mineral fertilizers and chicken manure on the productivity of potato tubers of domestic and foreign selection. In the studies conducted in 2017-2019 on leached chernozem under the conditions of the Penza region, it was found that when chicken manure and mineral fertilizers are applied, the yield and quality of tubers increases, which is directly related to the supply of plants with nutrients. The use of chicken manure at a dose of 2 t/ha allowed to increase the total yield of tubers of the studied varieties of potatoes by 22.6-29.5, marketable tubers by 24.3-35.5 compared with the variant without fertilizers. The highest yields were observed in variants with the combined use of carbamide in a dose of N30 and potassium sulfate at a dose K60 and in variants with a combined use of ammophos at a dose N30P30K30 and potassium sulfate at a dose K30.The use of moderate doses of mineral fertilizers and chicken manure at a dose of 2 t/ha increases not only the productivity of potato tubers, but also the content of dry matter, starch and nitrates in the tubers, not exceeding the MAC value. The combined use of nitrogen-potassium and nitrogen-phosphorus-potassium fertilizers with the addition of potassium sulfate at doses of K60 and K30 can improve the quality indicators of tubers for all studied varieties.


HortScience ◽  
1993 ◽  
Vol 28 (4) ◽  
pp. 268C-268
Author(s):  
J.T. Garrett

Nitrogen from five different sources applied preplant and sidedress to field grown watermelon (Citrullus lanatus Thunb. cv. Prince Charles) did not affect total yield but more melons were harvested earlier when potassium nitrate or calcium nitrate was applied frequently in small amounts. Conversely, two sidedressings of ammonium nitrate or soda/potash applied at 30-day intervals outperformed other application frequencies for these sources. Timing of application had little effect on earliness when sodium nitrate was the source. Improvement in percent stand was documented where total nitrogen fertilizer was applied frequently in small amounts versus infrequent larger amounts. Stand count improvements approached 30 percent for ammonium nitrate and potassium nitrate when amounts were split over five applications versus the single application. Soluble solids and flesh color were not affected by treatments used in this study.


2020 ◽  
Vol 5 (9) ◽  
pp. 1131-1134
Author(s):  
Ahmed Ali Al-Karkhi

Objective: Barley Hordeum vulgaire L is an important grain crop, and is grown in large areas all over the world. The experiment aims to study the effect of different levels of fertilizer from agricultural sulfur (0, 1500, 3000, and 4500 kg) S / H, and the number of cuttings (without cut, one cut, and cut twice) on the yield and quality of green forage and grain yield for barley crop Iba 99. Material and Methods: In this experiment, randomized whole section design was used in the arrangement of splinter panels - splinter with three replicates, sulfur levels for the secondary plates and the number of cuttings in the sub-plot plates. Results: The addition of agricultural sulfur at the level (4500 kg S / H) resulted in a significant increase in the following characteristics: - plant height, number of tillers / m2, number of spikes / m2 and grain yield. Whereas the sulfur level (3000 kg S / E) resulted in a significant increase in the two green forage yields and the number of grains / spike when added and for the first and second seasons in succession. Conclusion: Sulfur has significant effect on plant height and a significant effect of interference between sulfur levels and the number of leaves and number of tillers /m2, but it has no effect on the percentage of protein matter in green forage. The increase on sulfur has a significant effect on spike and gave the highest rate (509.4 spike / m2), and increase the protein level in grain to the highest rate 16.95.


1968 ◽  
Vol 70 (1) ◽  
pp. 59-64 ◽  
Author(s):  
D. Reid

SUMMARYYields and quality of herbage from a cocksfoot/white clover sward were compared over a 3-year period when cut repeatedly with a reeiprocating-blade mower to either 1 in or 2½ in from ground level or with a cylinder lawnmower to 1 in from ground level. The comparisons were made under two frequencies of cutting, namely five times per season at the ‘grazing’ stage, or three times at the ‘silage’ stage.Cutting to 1 in from ground level with the reciprocating-blade mower gave a greater total yield of dry matter and crude protein than did cutting to 2½ in with the same mower in the first year, when the average dry-matter yield difference was 10·7 %, but no significant differences were recorded in subsequent years. It is suggested that the difference noted in the first year was due mainly to the harvesting at the first cut in the season of the layer of herbage between 1 and 2½ in from ground level, and not to any differential effects of the treatments on stem and leaf development of the cocksfoot.Cutting to 1 in from ground level with the lawnmower gave smaller dry-matter yields than did cutting to 1 in with the reciprocating-blade mower at both stages of growth in the first year, but a slightly greater yield at the ‘grazing’ stage in the third year. The type of mower used affected the botanical composition of the sward.


2019 ◽  
Vol 8 (2) ◽  
pp. 62
Author(s):  
Lungile T. Shongwe ◽  
Michael T. Masarirambi ◽  
Tajudeen O. Oseni ◽  
Paul K. Wahome ◽  
Kwanele A. Nxumalo ◽  
...  

There is dearth of information pertaining to hydroponics production of zucchini in the Kingdom of Eswatini. The objective of this study was to determine the effects of hydroponics systems on growth, yield and nutritional content of zucchini. The research was conducted in three greenhouses of the Horticulture Department, Faculty of Agriculture, Luyengo Campus at the University of Eswatini between July and October 2018. The experiment was laid out in a split-plot design replicated four times. Three hydroponics systems were used as the main plots, i.e. elevated tray, ground lay bed and Nutrient Film Technique (NFT) systems. The sub-plots were allocated to the three varieties, i.e., Amanda, Hygreen and Terminator. The zucchini grown in elevated tray hydroponics system had the highest yield in all the varieties compared to the other hydroponics systems. The results showed that there were significant differences in the growth, yield and nutritional content of zucchini cultivars grown in the different hydroponics systems. The tallest plants (26.1cm) were obtained in cultivar Terminator grown in the elevated tray system and the highest number of leaves (15) was obtained in cultivar Terminator grown in the elevated tray system. Cultivar Terminator grown in the elevated tray system had the highest total yield (15.8 tons/ha) while Hygreen plants produced in the NFT system recorded the lowest total yield (1.04 tons/ha). There were no significant differences in the iron content of zucchini among the cultivars grown in the different hydroponics systems. The results of this study revealed that different zucchini cultivars responded differently when grown in the different hydroponics systems. Therefore based on the results of this study it is recommended that Terminator zucchini cultivar can be produced in the elevated tray hydroponics system.


1986 ◽  
Vol 66 (3) ◽  
pp. 609-616 ◽  
Author(s):  
S. S. MALHI ◽  
D. K. McBEATH ◽  
V. S. BARON

Field experiments were conducted at four locations in central Alberta to determine the effect of N applications on dry matter yield and quality of bromegrass (Bromus inermis L.) hay. Ammonium nitrate was broadcast in early spring for 5 yr at rates of 0, 50, 100, 150, 200 and 300 kg N ha−1. In addition, fertilizer N was applied at 200 and 400 kg ha−1 only in the initial year to determine residual effects. Total dry matter yield (TDY) increased with increasing fertilizer N rates maximizing at 150 to 200, 100 to 150, 50 to 100 and 100 to 150 kg N ha−1 at Lacombe, Joffre, Botha, and Rocky Mountain House, respectively. Protein concentration and protein yield in bromegrass hay also increased with increasing N applications. Over the 4-yr period, TDY with initial N applications were generally lower than with the same total amount of N applied with annual rates. The residual effect of initial rates of N lasted only 2–3 yr following fertilizer application. With the exception of the Botha location, levels of NO3-N potentially toxic to livestock (>0.226%) were produced only in the first year. Potentially toxic NO3-N levels did not generally occur at those rates required to maximize TDY.Key words: Ammonium nitrate fertilizer, Bromus inermis, dry matter yield, nitrate-N concentration, protein concentration, protein yield


Author(s):  
А. V. Alabushev ◽  
N. А. Kovtunova ◽  
V. V. Kovtunov ◽  
А. Е. Romanyukin ◽  
Е. А. Shishova

The correlation between the traits allows making an indirect selection, while the selection according to one trait results in the selection of another indicator. The purpose of the work is to estimate the variability of quantitative traits of Sudan grass and the correlations between them, to identify marker traits of high productivity and quality of green mass. There have been presented the study results of 115 collection samples of Sudan grass with various environmental and geographical origin of the Rostov region made in 2014-2018. There was a great variability (V=29.7-50.0%) in tillering, leaf square, green mass yield, stem diameter, plant height among the studied varieties.  The percentage of fiber and nitrogen-free extractive substances in the green mass of the studied Sudanese grass samples were characterized with high stability (V = 4.9-5.0%). The analysis has identified a strong correlation between green mass productivity and leaf length (r=0.59±0.01), leaf width (r=0.57±0.02), leaf square (r=0.54±0.03), plant height (r=0.48±0.06), length of ‘vegetation-ear formation’ period (r=0.48±0.004) and number of leaves (r=0.42±0.03). There has been identified a group of samples ‘Boldinsky’, ‘Fioros’, ‘К-176’, ‘К-205, ‘К-272’ with 35-55 t/ha green mass productivity and with 20.5-24.5% dry matter in green mass. The conducted analysis has shown that dry matter percentage greatly correlates with plant height (r=0.30±0.001), vegetation period (r=0.34±0.004) and number of leaves (r=0.26±0.006). The markers of high productivity and quality of green mass are length of a vegetation period and number of leaves (their increase results in the growth of green mass yields), dry matter percentage in green mass and protein decrease in it.


2019 ◽  
Vol 1 (1) ◽  
pp. 26-32
Author(s):  
Juan Diolando Villanueva- Reátegui, ◽  

With the objective of evaluating the effect of the levels of foliar fertilizers on yield and quality of forage chala was conducted this work of research, which was carried out on the grounds of the CIFO - UNHEVAL from the village of Cayhuayna. The parameters evaluated were: plant height at harvest, green forage yield, dry matter and protein content; for determination of dry matter was carried out in the Laboratory of Soil and Water of the UNHEVAL and the content of proteins, the samples were sent to the Laboratory of Bromatology of the UNAS. The results obtained were as follows: in plant height, treatments behaved similarly in their average, but treatment Biol 2.0 / 20 L obtained the highest with 2.88 meters; in green forage yield treatments EM 1 - activated 1.5 and 2.0 l / 20 L stand out with 106.06 and 100.65 t / has respectively; in the only dry matter yield differences 5% margin of error, where stressed treatment Biol 1.5 / 20 L with 30.42 t / ha; and in the protein content of maize chala EM and biological level of 2.0 L / 20 litres of water stood out with 9.0 and 9.2% respectively. Key words: forage, dry, protein, effective microorganisms, Biol


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