The research work was conducted in the Horticulture Research Farm, Department of Horticulture, Sam Higginbottom University of Agriculture, Technology and Sciences, Prayagraj during the year 2019-2020. The experiment was conducted in randomized block design with three replication & 12 treatments. Treatments were allocated randomly to each replication, each treatment comprised of one plant, which made a total of 36 plants. The best results were achieved in treatment T4 NPK (100:105:105) gram per plant with maximum plant height (113.62), maximum number of leaves per plant (71.99), maximum number of branches per plant (10.07), minimum days to bud initiation (43.31 days), minimum days taken flowering (49.87 days), maximum number of flower per plant(15.83), maximum flower diameter (cm) (13.06), flower weight (g) was found maximum (3.82), number of flower was found maximum (39575) along with maximum cost benefit ratio (1:1.46).
Table of Contents
I. INTRODUCTION
II. REVIEW OF LITERATURE
III. MATERIALS AND METHODS
IV. RESULTS AND DISCUSSION
V. SUMMARY AND CONCLUSION
Research Objective and Topics
This thesis investigates the effect of NPK fertilization on the vegetative growth and floral yield of Hibiscus rosa-sinensis. The core objective is to identify the most suitable NPK treatment to optimize plant development and flowering, while concurrently analyzing the economic viability of these different nutrient regimens.
- Impact of nitrogen, phosphorus, and potassium on morphological plant traits.
- Evaluation of flowering parameters, including bud initiation and blossom size.
- Comparative analysis of different NPK dosage levels on flower production.
- Economic analysis of cost-benefit ratios for commercial cultivation.
- Correlation between nutrient application and floral quality metrics.
Excerpt from the Book
Effect of NPK on plant height (cm) of Hibiscus rosa sinensis
The plant height recorded at various stage of crop growth as affected by different levels of NPK is furnished in table 4.1.1 and illustrated in fig 4.1.1.
The plant height was influenced by different levels of NPK at 30DAP and the result was found to be insignificant. The maximum plant height (84.55 cm) was observed in the treatment T4 NPK (100:105:105) gram per plant followed T3 NPK (75:80:80) gram per plant and T5 NPK (125:130:130) gram per plant. The plant height was found to be minimum (34.80cm) in the treatment T0 Control nitrogen, phosphorus & potassium 0:0:0 g/plant.
The plant height was influenced by different levels of NPK at 60DAP and the result was found to be insignificant. The maximum plant height (91.01 cm) was observed in the treatment T4 NPK (100:105:105) gram per plant followed T3 NPK (75:80:80) gram per plant and T5 NPK (125:130:130) gram per plant. The plant height was found to be minimum (39.32) in the treatment T0 Control Nitrogen, Phosphorus & Potassium 0:0:0 g/plant.
Summary of Chapters
I. INTRODUCTION: Provides an overview of Hibiscus botany, propagation importance, and the physiological necessity of macronutrients like N, P, and K for plant development.
II. REVIEW OF LITERATURE: Consolidates previous research findings on the impacts of integrated nutrient management and specific NPK dosage applications on various ornamental and horticultural plant species.
III. MATERIALS AND METHODS: Details the experimental site, climatic conditions of Prayagraj, layout design, treatment protocols, and specific techniques for recording growth and floral observations.
IV. RESULTS AND DISCUSSION: Presents the statistical findings and analytical interpretations regarding plant height, branching, flowering phenology, and economic return on investment for each treatment group.
V. SUMMARY AND CONCLUSION: Synthesizes the core findings, confirming treatment T4 as the optimal strategy for maximizing Hibiscus productivity and profitability.
Keywords
Hibiscus rosa-sinensis, NPK fertilizer, plant growth, flower yield, macronutrients, nitrogen, phosphorus, potassium, nutrient management, horticulture, ornamental plants, floral phenology, cost-benefit ratio, agriculture, crop production.
Frequently Asked Questions
What is the core focus of this research?
The research examines the quantitative effects of varying NPK (Nitrogen, Phosphorus, Potassium) fertilizer application rates on the growth characteristics and flower production of Hibiscus rosa-sinensis.
What are the key areas of study in this thesis?
The study focuses on plant morphology (height, number of leaves and branches), flowering traits (bud initiation, flowering days, flower weight, and diameter), and the economic trade-offs associated with fertilizer application.
What is the primary objective of the experiment?
The primary aims are to determine the optimal nutrient combination for superior Hibiscus vigor and yield, and to calculate which treatments offer the best financial returns.
Which scientific methodology was employed?
The experiment utilized a randomized block design (RBD) involving 12 distinct treatment combinations, with data subjected to ANOVA (Analysis of Variance) to determine statistical significance.
What does the main body of the work cover?
It covers observational data gathered over 180 days after planting, including detailed meteorological summaries, soil analysis, and comparative performance metrics broken down by NPK levels.
Which keywords define this work?
The work is defined by terms such as Hibiscus, NPK fertilization, floral development, cost-benefit analysis, and nutrient efficacy in ornamental horticulture.
What specific findings were noted for treatment T4?
Treatment T4 (100:105:105 gram per plant) consistently yielded the best performance metrics, including maximum plant height, number of branches, flower diameter, and the highest cost-benefit ratio of 1:1.46.
How did nutrient levels impact flower initiation?
The study found that the balanced nutrient levels in treatment T4 resulted in the minimum number of days to bud initiation, suggesting that appropriate fertilization significantly accelerates the reproductive transition in Hibiscus.
- Quote paper
- Ashish Verma (Author), 2020, Effect of Nitrogen, Phosphorus and Potassium on Plant Growth and Flower Yield of Hibiscus, Munich, GRIN Verlag, https://www.grin.com/document/1453714
