Review on Nutrient Management, Cycles, Flows and Balances in Different Farming Systems

Dereje Geremew

doi:10.7176/jbah/11-18-03

Abstract

Soil fertility management is continuously modified and adapted as conditions change in time and integrated plant nutrient management is a holistic approach to optimizing plant nutrient supply for the objective of adequately nourish the crop as efficiently as possible, while minimizing potentially adverse impacts to the environment Existence of life depends on continuous cycling of nutrients from the nutrient pool (in the abiotic component of environment) to the living beings and then back to the nutrient pool. These complex series of invisible, delicately balanced, and interrelated biochemical reactions fuel life on earth. Nutrients cycles have been substantially altered by human activities mainly agriculture with large positive and negative consequences for a range of ecosystem services and for human well-being and The presence of animals into the agricultural production system can modify the rates and flows of nutrient dynamics between the compartments of the system and Integrated crop-livestock systems can positively change the biophysical and socio-economic dynamics of farming systems, reestablishing sustainable rural development and promoting higher overall farm profitability. Soil nutrient balances reflect the net change in soil fertility and indicate trends in time, but do not necessarily determine the current state of soil fertility and can differ considerably between different crops, farming systems and agro-ecological zones Keywords: Nutrients, nutrient cycle, nutrient balance DOI: 10.7176/JBAH/11-18-03 Publication date: September 30 th 2021

Highlights

Soil fertility management is continuously modified and adapted as conditions change in time and intensification of soil fertility depletion increases, when population pressure increases and suitable land becomes scarce (Boesen and Hansen, 2001)
Nutrient management in different farming systems Many farming systems still rely on natural release of nutrients from the soil through mineralization and approximately 60–80 % of the farm income was obtained at the expense of soil nutrient depletion, i.e. through un replenished nutrient uptake in marketable crops
Summery and conclusion Soil fertility management is continuously modified and adapted as conditions change in time and integrated plant nutrient management is a holistic approach to optimizing plant nutrient supply for the objective of adequately nourish the crop as efficiently as possible, while minimizing potentially adverse impacts to the environment

Summary

Introduction

Soil fertility management is continuously modified and adapted as conditions change in time and intensification of soil fertility depletion increases, when population pressure increases and suitable land becomes scarce (Boesen and Hansen, 2001). Since phosphorus in agriculture is the second most growth limiting macronutrient after nitrogen, its proper management in soil contributes significantly to sustainable crop production (Tilmanet al., 2002)To review nutrient management, cycles, flows and balances in different farming systems

Results

Conclusion