In the recent past, India has made an impressive progress in achieving self sufficiency in food grains. However, efforts to increase the production of oilseeds have not brought any perceptible change in per capita availability of oil to predominantly vegetarian population of our country. The domestic demand for vegetable oils and fats has also been rising rapidly at an increasing rate due to increase in per capita income and increase standard. The present per capita annual consumption of edible oil is 14.4 kg and in 2030 it will likely to be 19.1 kg. India will continue to depend on imports of edible oils even in the coming decades. The domestic production of edible oils is projected to be about 12 million tonnes by 2020 and 19 million tonnes by 2030. These facts clearly emphasize urgent need to achieve substantial and sustained growth in production of oilseeds.
Table of Contents
1. INTRODUCTION
2. REVIEW OF LITERATURE
3. MATERIALS AND METHODS
4. EXPERIMENTAL RESULTS
5. DISCUSSION
6. SUMMARY
7. CONCLUSION
Research Objectives and Themes
This thesis explores the impact of various herbicide applications and nutrient management strategies on the productivity of soybean [Glycine max (L.) Merrill] and assesses their residual effects on a subsequent wheat (Triticum aestivum L.) crop, with the primary objective of establishing an economically viable, sustainable weed management and fertilization program.
- Bio-efficacy of herbicides and their combinations on weed dynamics.
- Impact of herbicidal weed management on soybean growth and yield.
- Response of soybean to balanced mineral fertilization.
- Economic viability analysis of various crop management treatments.
- Residual assessment of herbicides in a double-cropping rotation with wheat.
Excerpt from the Book
1. INTRODUCTION
In the recent past, India has made an impressive progress in achieving self sufficiency in food grains. However, efforts to increase the production of oilseeds have not brought any perceptible change in per capita availability of oil to predominantly vegetarian population of our country. The domestic demand for vegetable oils and fats has also been rising rapidly at an increasing rate due to increase in per capita income and increase standard. The present per capita annual consumption of edible oil is 14.4 kg and in 2030 it will likely to be 19.1 kg (Kumar et al., 2016). India will continue to depend on imports of edible oils even in the coming decades. The domestic production of edible oils is projected to be about 12 million tonnes by 2020 and 19 million tonnes by 2030 (Kumar et al., 2016). These facts clearly emphasize urgent need to achieve substantial and sustained growth in production of oilseeds.
Soybean [Glycine max (L.) Merrill] is one of the most important oilseed crop in India. The crop is called “Golden bean” or “Miracle crop” of the 21st century because of its multiple uses (Jadhav, 2014). Soybean seeds contain 38-42 per cent good quality protein and 18-20 per cent oil, rich in polyunsaturated fatty acids (linoleic and oleic acid) along with a good amount of minerals (Ca, P, Mg, Fe and K) and vitamins especially B- complex and teco-pherols (Devi et al., 2012). It plays a pivotal role in meeting the continuously increasing demand of the edible oil across the world. Globally, the crop contributes about 25 per cent to the total edible oil production.
Summary of Chapters
1. INTRODUCTION: Provides context on India's oilseed production challenges and outlines the objectives regarding soybean productivity and weed management.
2. REVIEW OF LITERATURE: Examines existing research on weed management in soybean and the effect of various herbicides and nutrient inputs on crop performance.
3. MATERIALS AND METHODS: Details the experimental site, design, treatment protocols, and methodologies used for data collection and analysis.
4. EXPERIMENTAL RESULTS: Presents the statistical findings regarding weed density, dry matter accumulation, and crop growth parameters under different management treatments.
5. DISCUSSION: Interprets the experimental results in the context of weather conditions, nutrient management, and herbicide efficacy.
6. SUMMARY: Consolidates the findings regarding the impact of herbicide and nutrient management practices on soybean performance and subsequent wheat crops.
7. CONCLUSION: Offers final recommendations based on the study's results, including the most efficient treatment combinations for sustainable soybean production.
Keywords
Soybean, Glycine max, Wheat, Triticum aestivum, Herbicides, Nutrient Management, Imazethapyr, Propaquizafop, Weed Control Efficiency, Agronomy, Crop Yield, Residual Effect, Soil Fertility, NPKS, Weed Management
Frequently Asked Questions
What is the primary focus of this research?
This research focuses on optimizing weed control and nutrient management in soybean cultivation to enhance productivity and assessing the residual impact of these practices on a subsequent wheat crop.
What are the central themes discussed in the thesis?
The central themes include weed interference, the efficacy of post-emergence herbicides (either alone or in mixtures), the impact of balanced fertilization (NPKS), and the economic outcomes of these management practices.
What is the main research question or objective?
The primary objective is to evaluate the bio-efficacy of herbicides and balanced fertilization on soybean growth and yield, and to arrive at an economically viable recommendation for soybean-wheat rotation systems.
Which scientific methodology was employed?
The study utilized a field experiment conducted in a split-plot design, incorporating 33 treatment combinations of weed management and fertility levels, followed by statistical analysis using analysis of variance (ANOVA) and correlation/regression techniques.
What does the main body cover?
The main body covers a comprehensive review of literature, detailed descriptions of experimental materials and methods, presentation of experimental results concerning weed dynamics and crop parameters, and a thorough discussion of findings.
Which keywords define this study?
Key terms include soybean productivity, weed control efficiency, herbicide tank-mix combinations, balanced NPKS fertilization, and residual effect on succeeding wheat.
How did the herbicide mixtures perform in the experiment?
Tank-mix applications, particularly the combination of propaquizafop and imazethapyr, demonstrated superior weed control efficiency and resulted in significantly higher soybean yields compared to sole herbicide applications or weedy controls.
What conclusions were drawn regarding the residual effect on wheat?
The study concluded that the herbicides and nutrient management practices applied to the soybean crop had no negative significant impact on the growth, yield parameters, or harvest index of the succeeding wheat crop.
- Quote paper
- Dr. Jai Prakash Bhimwal (Author), 2018, Effect of Herbicides and Nutrient Management on Productivity of Soybean Merrill and their Residual Effect on Succeeding Wheat, Munich, GRIN Verlag, https://www.hausarbeiten.de/document/429280
