Biostimulants stimulate natural processes in crops to enhance nutrient uptake, nutrient use efficiency (NUE), resistance to abiotic stress and quality traits. This collection reviews key advances in understanding and using biostimulants.

This edited volume is an inclusive collection of information on crop holobiome, their function and diversity, the plausible role of soil microbes in crop growth, protection from pathogens and stresses, the use of resilient microbiomes for changing climate, and the use of new technologies to study plant-insect-microbe molecular interactions in agricultural systems. Holobiomes provide information about both plants and their microbiomes, which gives a more comprehensive insight, particularly for changing climatic scenarios. By optimizing the crop holobime function crop productivity and plant health can be enhanced manifold. This book deep dives into the numerous ways in which holobiome supports the improving plant health, nutrient uptake, disease control, and stress resistance in major food crops. It helps researchers, academicians, agri-entrepreneurs, and technologists understand the structure and function of holobiomes in crop growth, health, stress tolerance under climatic changes, and holobiome diversity and evolution. The book is also helpful in designing new dimensions in the holobiome research and development of new products and technologies. This volume is of interest and useful to agriculture scientists, microbiologists, ecologists, and is a valuable source of reference to researchers and students.

Smart Agrochemicals for Sustainable Agriculture proposes products that fulfill the need for chemicals that provide a sustainable delivery system for nutrients necessary to maximize the production of agricultural animals and plants while producing the smallest possible environmental footprint. This book addresses all aspects related to the production process, including chemical formulas, stability of formulations, and the application of the effect of its utilization. Over the past decade, biobased chemicals have received significant attention as candidate resource materials in fertilizers and agrochemicals production due to their renewability. Substitution of conventional raw materials with biobased requires a new approach towards the development of technology. On the other hand, the use of biobased chemicals, such as biostimulants, bioregulators and biofertilizers offers a new palette of products that are natural, thus their application does not pose an impact on the environment (residues) or cultivated plants. Presents ideas for new products that provide appropriate nutrition while limiting environmental footprints Includes a full range of the production process, from chemical formulas to establishing the stability of formulations, applications and effects Offers a host of new products that are natural and whose applications do not negatively impact the environment nor cultivated plants

Over the past decade, interest in plant biostimulants has been on the rise, compelled by the growing interest of researchers, extension specialists, private industries, and farmers in integrating these products in the array of environmentally friendly tools to secure improved crop performance, nutrient efficiency, product quality, and yield stability. Plant biostimulants include diverse organic and inorganic substances, natural compounds, and/or beneficial microorganisms such as humic acids, protein hydrolysates, seaweed and plant extracts, silicon, endophytic fungi like mycorrhizal fungi, and plant growth-promoting rhizobacteria belonging to the genera Azospirillum, Azotobacter, and Rhizobium. Other substances (e.g., chitosan and other biopolymers and inorganic compounds) can have biostimulant properties, but their classification within the group of biostimulants is still under consideration. Plant biostimulants are usually applied to high-value crops, mainly greenhouse crops, fruit trees and vines, open-field crops, flowers, and ornamentals to sustainably increase yield and product quality. The global biostimulant market is currently estimated at about $2.0 billion and is expected to reach $3.0 billion by 2021 at an annual growth rate of 13%. A growing interest in plant biostimulants from industries and scientists was demonstrated by the high number of published peer-reviewed articles, conferences, workshops, and symposia in the past ten years. This book compiles several original research articles, technology reports, methods, opinions, perspectives, and invited reviews and mini reviews dissecting the biostimulatory action of these natural compounds and substances and beneficial microorganisms on crops grown under optimal and suboptimal growing conditions (e.g., salinity, drought, nutrient deficiency and toxicity, heavy metal contaminations, waterlogging, and adverse soil pH conditions). Also included are contributions dealing with the effect as well as the molecular and physiological mechanisms of plant biostimulants on nutrient efficiency, product quality, and modulation of the microbial population both quantitatively and qualitatively. In addition, identification and understanding of the optimal method, time, rate of application and phenological stage for improving plant performance and resilience to stress as well as the best combinations of plant species/cultivar × environment × management practices are also reported. We strongly believe that high standard reflected in this compilation on the principles and practices of plant biostimulants will foster knowledge transfer among scientific communities, industries, and agronomists, and will enable a better understanding of the mode of action and application procedures of biostimulants in different cropping systems.

This volume is the first centralized source of technological and policy solutions for sustainable agriculture and food systems resilience in the face of climate change. The editors have compiled a comprehensive collection of the latest tested, replicable green technologies and approaches for food security, including smart crops and new agricultural paradigms, sustainable natural resources management, and strategies for risk assessment and governance. Studies from resource-constrained countries with vulnerable populations are emphasized, with contributions on multisector partnership from development professionals. Debates concerning access to climate-smart technologies, intellectual property rights, and international negotiations on technology transfer are also included. The editors are, respectively, a public health physician, a development professional and an environmental scientist. They bring their varied perspectives together to curate a holistic volume that will be useful for policy makers, scientists, community-based organizations, international organizations and researchers across the world.