Disease · 25 articles
Chlorosis is a visual indicator of serious disturbances in plant physiology, signaling a deficiency of essential nutrients or the development of pathological processes. Understanding the causes of leaf discoloration is critical for an agronomist and a protected-soil specialist, as timely diagnosis allows distinguishing between functional disorders related to the lack of macro- and microelements and symptoms of viral or bacterial infections. Determining the exact nature of the problem is the basis for making decisions on adjusting nutrient schemes and choosing a crop protection strategy.
This collection contains materials devoted to methods of visual diagnosis of chlorosis and other pathologies of agricultural crops. Readers will find information on the principles of assessing the nutrient content of substrates, the specifics of sulfur and boron deficiency, as well as the particularities of the spread of viral and bacterial diseases in greenhouse conditions. The articles cover methods for calculating fertilizer application rates, strategies for controlling phytopathogens, and approaches to plant health improvement, which will allow for a comprehensive view on maintaining crop productivity and minimizing harvest losses when growing various vegetable and floral species.
Plant protection For gardeners
Chlorosis is an indicator of plant nutrition disorders. The article explains how to distinguish between the deficiency of mobile elements and the lack of immobile micro- and macronutrients based on the location of symptoms across the canopy layers
Plant protection For agronomists
The article reveals the nature of viruses as parasitic organisms and explains the mechanisms of their impact on plant physiology. The reader will learn about the main types of viral pathogens common in greenhouse conditions and the role of weeds as natural reservoirs of infection
Plant protection For agronomists
The article examines the characteristics of viral diseases of pepper in greenhouse conditions. You will learn about the most harmful viruses, their symptoms, and the pathways of infection spread
Plant protection For agronomists
The article examines viral infections of greenhouse roses, their impact on plant condition, and primary methods for pathogen suppression. Recommendations for diagnosing non-pathogenic chlorosis caused by temperature stress are also provided
Plant protection For agronomists
The article examines the main signs of pathological stem changes in protected soil. You will learn to distinguish symptoms of wilting, deformation, and necrosis caused by bacterial and fungal infections
Plant protection For agronomists
The article presents a method for visual diagnosis of tomato conditions based on characteristic changes in the leaves. The material helps distinguish between nutrient deficiencies, substance toxicity, and signs of pathogenic diseases
Plant protection For agronomists
The article describes the main transmission pathways of viral infections via insects, nematodes, and fungi, as well as modern biotechnological methods for obtaining virus-free nursery plants. You will learn about the possibilities of crop sanitation using thermotherapy and meristem culture
Plant protection For agronomists
The article reveals biological characteristics of phytopathogenic bacteria, including their feeding mechanisms, reproduction methods, and enzymatic activity. It also describes main symptoms of plant infection, such as necrosis, soft rots, chlorosis, and tumor formation
Agrochemistry For students
Sulfur is a key element for the synthesis of plant proteins and the maintenance of photosynthesis. The article examines the forms of sulfur uptake by plants, its influence on enzymatic processes, and the diagnosis of sulfur deficiency symptoms.
Nutrition and fertilizers For gardeners
Boron deficiency leads to the dieback of growth points, reduced yield, and fruit deformation. The article provides a detailed description of the symptoms of this micronutrient deficiency in various crops and the soil conditions that trigger this condition.
Greenhouses and covers For agronomists
The use of greenhouses for mushroom cultivation allows for efficient use of space during the autumn-winter period. The article presents recommendations for placing mycelia, requirements for growing conditions, and harvest storage rates
Agrochemistry For students
Rational fertilizer application requires accurate calculation of nutritional doses based on the biological needs of the crop and the availability of elements in the soil. The article examines formulas for calculating nutrient uptake and methods for diagnosing the state of crops to improve the efficiency of top dressing
