Biostimulants are synthetic or natural substances that can be used in soil, seeds and plants, and which influence tolerance towards abiotic stress, uptake of nutrients and nutrient efficiency. Seaweed extracts, helpful fungi and bacteria, humic acids, and liquid manure composting are some of the several types of biostimulants. They are increasingly being used in sustainable agricultural practices. These practices strive to strike a balance between the need to produce food and preserving the ecological system. The three primary goals of sustainable agriculture are maintaining environmental health, ensuring economic profitability, and guaranteeing social and economic equity. Biostimulants are compatible with the most progressive farming practices utilized in integrated crop management. They act as soil conditioners and assist the plants in securing nutrients, increasing crop productivity, and repelling pests. This book aims to shed light on the use of biostimulants in sustainable agriculture and crop production. It presents researches and studies performed by experts across the globe. This book will prove immensely beneficial to professionals and students involved in this area of agriculture science.