Effect of Foliar Application of NPK on Some Growth Characters of Two Cultivars of Roselle (Hibiscus sabdariffa L.)

Abbas, Majeed K.; Ali, Ali Sabah

doi:10.3923/ajpp.2011.220.227

Cited by 25 publications

(26 citation statements)

References 14 publications

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“…Such increases are attributable to favorable effect of the highest K-fertilization rate in regulating many metabolic processes in Roselle plants. These results are in accordance with those reported by Abo- El-Seoud et al (1994), Abbas and Ali (2011) and Sakr et al, (2014) on Roselle plants.…”

Section: (B) Effect Of Potassium Fertilization Ratessupporting

confidence: 94%

“…The corresponding reduction values in 2 nd season were (34.53 and 22.58%), (37.78 and 22.72%), (37.80 and 22.42%) and (37.76 and 21.93%) in the same order of the treatments. The obtained results were in accordance with those reported by Abo-El-Seoud et al(1994), Abdou et al(2004), Abbas and Ali (2011) and Sakr et al(2014) .…”

Section: (B) Effect Of Potassium Fertilization Ratessupporting

confidence: 93%

“…The increases in N, P and K contents, due to POC+CM application, comprised (11.17 and 19.67%), (29.55 and 54.05 %) and (13.97 and 22.95%) in 1 st season and (9.39 and 18.97%), (38.00 and 72.50%) and (16.07 and 23.81%) in 2 nd season, respectively, compared with POC and zero compost addition. Similar results were reported by Nabila and Aly (2002), El-Sheriff and Sarwat (2007), Gad (2011) and Abbas and Ali (2011) who stated that organic waste composts addition significantly increased N, P and K contents of Roselle dry matter.…”

Section: -Macronutrients (N P and K) Contents: (A) Effect Of Compossupporting

confidence: 88%

“…These results come in agreement with Shalan et al (2001) who found that applying potassium fertilizer at different rates increased anthocyanin and sugar contents of roselle sepals. Similar results obtained by Abbas and Ali (2011), Sakr et al (2014) and Ghasemi et al (2015) on Roselle.…”

Section: (B) Effect Of Potassium Fertilization Ratessupporting

confidence: 86%

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Response of Roselle Plants (Hibiscus sabdariffa l.) to Pressed Olive Cake Compost Types and Potassium Fertilization Rates on Newly Reclaimed Soils at Siwa Oasis, Egypt

Khatab

2016

Journal of Soil Sciences and Agricultural Engineering

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This investigation was carried out during the two seasons of 2013 and 2014 at the experimental farm of Matrouh Agricultural Research Station, Siwa Oasis, Matrouh Governorate, Egypt, (29.11° N latitude and 25.33° E longitude). The study aiming at evaluating the effect of two types of composts pressed olive cake (POC) and POC+CM (chicken manure) combined potassium fertilizer levels and their interactions on yield, yield components and some sepals chemical constituents of Rosella plants. The obtained results could be summarized as follows:-* The investigated compost types exerted significant effects on plant height, branches No. plant -1 , seed yield (g plant -1 ) and seed yield (kg fed -1 ) of Roselle plants, and POC+CM compost exhibited the highest figures in 1 st and 2 nd seasons. The adopted K fertilization rates significantly affected the abovementioned parameters, which gradually increased due to increasing k fertilization ratefigures in the 1 st and 2 nd seasons. All the parameters were significantly influenced due to the interaction and the highest values were recorded under POC+CM compost and 48 kg K 2 Ofed -1 rate interaction in 1 st and 2 nd seasons. *Sepals yield and its components of Roselle plants were significantly influenced due to the tested compost types and K fertilization rates and interaction in 1 st and 2 nd seasons. Both POC+CM compost and 48 kg K 2 O fed -1 rate exhibited the highest figures of the abovementioned parameters 1 st and 2 nd seasons. The highest values of sepals yield and its components were attained due to POC+CM compost as interacted with 48 kg K 2 Ofed -1 rate in 1 st and 2 nd seasons. *N, P and K% of roselle petals were significantly influenced due to the investigated compost types and K fertilization rates. The highest N, P and K figures were attained with both POC+CM compost and 48 kg K 2 O fed -1 rate 1 st and 2 nd seasons. In addition, interaction of POC+CM compost and 48 kg K 2 O fed -1 rate exhibited the highest values, however, the differences did not reach the significance level, and such trend was true in1 st and 2 nd seasons. * Chemical constituents of roselle sepals e.g. total carbohydrates, anthocyanin ascorbic acid contents and pH were significantly influenced due to K fertilization rates, whereas compost type exhibited similar trend, except with pH1 st and 2 nd seasons. POC+CM compost and 48 kg K 2 O fed -1 rate interaction still exhibiting the highest values of the abovementioned parameters, however, the differences did not reach the significance level, and such trend was true in1 st and 2 nd seasons. On conclusion, supplying POC compost combined with 48 kg K 2 O fed -1 resulted in higher values of sepals yield and quality and macronutrients uptake as well, however, it is advisable to replace POC compost by POC compost +CM which absolutely exhibited the highest values of the studied parameters under the present experimental conditions.

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Section: (B) Effect Of Potassium Fertilization Ratessupporting

confidence: 94%

Section: (B) Effect Of Potassium Fertilization Ratessupporting

confidence: 93%

Section: -Macronutrients (N P and K) Contents: (A) Effect Of Compossupporting

confidence: 88%

Section: (B) Effect Of Potassium Fertilization Ratessupporting

confidence: 86%

See 2 more Smart Citations

Response of Roselle Plants (Hibiscus sabdariffa l.) to Pressed Olive Cake Compost Types and Potassium Fertilization Rates on Newly Reclaimed Soils at Siwa Oasis, Egypt

Khatab

2016

Journal of Soil Sciences and Agricultural Engineering

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“…Consequently, complementary tithonia-enriched LOF supply for sweet corn production could be directly sprayed to the soil and incorporated with sprinkled irrigation to save labor costs. Abbas & Ali (2011) suggested that foliar fertilization is usually practiced as supplement of soil fertilization. The effectiveness of LOF application for organically grown sweet corn might be improved by proper management of spraying and frequent applications with low dosages and application through sprinkled irrigation.…”

Section: Resultsmentioning

confidence: 99%

Comparative Effects of Soil and Foliar Applications of Tithonia-Enriched Liquid Organic Fertilizer on Yields of Sweet Corn in Closed Agriculture Production System

Fahrurrozi

Muktamar²,

Setyowati³

et al. 2019

Agrivita.J.Agr.Sci

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Solid organic fertilizer is commonly applied for organic vegetable production in a closed agriculture production system as nutrient source. However, its availability is considered slow to sweet corn, and thus it is important to make additional nutrients supply as liquid organic fertilizer (LOF) through leaves. The experiments were conducted to compare effects of LOF application methods and to determine optimum LOF concentrations for sweet corn. Two separated factorial experiments, arranged in randomized complete block design with three replicates, were conducted from February to May and March to June 2015, respectively. The first factor was LOF application methods (soil and foliar) and the second factor was LOF concentration (0, 25, 50, 75, and 100 ppm). The observations focused on average weight of husked ear, length, weight and diameter un-husked ears. The results indicated that the effectiveness of soil application of LOF was 99.625 % as effective as foliar application in influencing sweet corn yields. Concentrations of LOF did not increase all observed variables, but yield attributes were within the range of variety description. It is concluded that in a closed production system, LOF application through soil is as effective as foliar application in affecting sweet corn yields.

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Physicochemical characteristics, antioxidant potential, and shelf stability of developed roselle–fig fruit bar

Aslam,

Nadeem,

Shahid

et al. 2023

Food Science & Nutrition

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Fruit bars are prepared by combining different ingredients which are wholesome and nutrient rich. The current study was designed to develop roselle–fig (different proportions) fruit bars and further investigate their physicochemical characteristics and antioxidant potential. Moreover, the prepared fruit bars were scrutinized for microbial and sensory characteristics to assess the appropriateness of ingredients during storage (up to 90 days). It was observed that there was gradual increase in moisture content with the passage of time, while ash, fat, fiber, and protein contents did not change significantly during storage. The pH and total soluble solid contents of these fruit bars during storage were 3.54–4.07 and 1.71–1.86 Brix, respectively. According to the mean values for sensory evaluation, T2 was preferred over other treatments. The bars received an acceptable sensory evaluation, demonstrating that they were suitable for 90 days of storage. Phytochemical quantities significantly increased in subsequent treatments, but decreased during storage in all the treatments. Similar trend was observed regarding total antioxidant and DPPH radical scavenging activities. The mineral contents increased significantly among the treatments. The microbial analysis of fruit bars exposed that the fruit were microbiologically safe. Hence, on the basis of the results obtained in this study, it may be concluded that the developed roselle–fig fruit bar would be acceptable and nutritious regarding physicochemical characteristics, microbiological quality, and antioxidant potential.

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Effect of Foliar Application of NPK on Some Growth Characters of Two Cultivars of Roselle (Hibiscus sabdariffa L.)

Cited by 25 publications

References 14 publications

Response of Roselle Plants (Hibiscus sabdariffa l.) to Pressed Olive Cake Compost Types and Potassium Fertilization Rates on Newly Reclaimed Soils at Siwa Oasis, Egypt

Response of Roselle Plants (Hibiscus sabdariffa l.) to Pressed Olive Cake Compost Types and Potassium Fertilization Rates on Newly Reclaimed Soils at Siwa Oasis, Egypt

Comparative Effects of Soil and Foliar Applications of Tithonia-Enriched Liquid Organic Fertilizer on Yields of Sweet Corn in Closed Agriculture Production System

Physicochemical characteristics, antioxidant potential, and shelf stability of developed roselle–fig fruit bar

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