Tech Doc Library
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Nutrition
The document provides technical recommendations for managing petunia and calibrachoa crops, focusing on monitoring and managing soil pH and electrical conductivity (EC), and checking for viral diseases.
The document provides advice on proper irrigation and fertilization practices for outdoor mums, especially after heavy rain, emphasizing the importance of immediate fertilization to replenish nutrients and maintain optimal pH levels.
The document discusses the causes, symptoms, and prevention of iron and manganese toxicity in geraniums, primarily caused by low soil pH, and provides recommendations for maintaining optimal soil pH to prevent this disorder.
The document provides tips on how to combat calcium deficiency in poinsettias, including choosing the right fertilizer, managing the greenhouse environment, and using foliar calcium chloride sprays if necessary.
The document discusses the management of pH in container production, focusing on the role of water alkalinity, lime in soil, and fertilizer in maintaining appropriate pH levels to prevent iron deficiency in crops.
The document discusses the signs, causes, and solutions for calcium deficiency in poinsettia crops, including adjusting fertilizer programs, modifying the growing environment, and using calcium chloride sprays.
The document provides detailed instructions on how to maintain and calibrate injectors used for fertilizer applications and insecticide or fungicide treatments in crop growing, emphasizing the importance of regular checks and servicing.
The document discusses the causes and treatments of leaf spots on pansies, dividing the issue into abiotic and biotic factors, with the former related to soil pH and nutrient management, and the latter to diseases like Colletotrichum and Cercospora.
The document provides guidelines on managing mum feed programs under extreme weather conditions, discussing the effects of cold and high temperatures, and heavy rains on crop nutrition, and suggesting strategies to counteract these effects.
The document provides detailed advice on best practices for fertilizing garden mums, emphasizing the importance of a good fertilizer plan, the use of different types of fertilizers at different stages of growth, and adapting the fertilizer strategy to changing production conditions.
The document discusses an issue with New Guinea Impatiens caused by high substrate EC (fertilizer salt accumulation), and provides solutions including leaching with clear water, adjusting temperature, and resuming feeding once the EC is normalized.
The document provides a tech tip on how to identify and address iron deficiency in crops, which is often indicated by yellow foliage with green veins, and can be resolved by checking the pH of the potting mix, root health, and possibly supplementing with iron chelate.
The document discusses the causes of tomato tip abortion, including environmental and chemical factors such as herbicides, soil nutrient levels, pH, soil EC, and low calcium and boron levels.
The document discusses the issue of iron and manganese toxicity in geraniums due to low pH, its symptoms, and suggests checking the pH, using the correct fertilizer, and supplementing with liquid limestone if needed.
The document provides detailed guidelines for successful fall pansy planting, emphasizing the importance of using cool water, maintaining appropriate pH and temperature, and applying specific fertilizers and fungicides.
The document provides a solution to the issue of leaf yellowing on garden mums, suggesting it may be due to low phosphorous and recommending a dose of 20-20-20 or 20-10-20.
The document discusses potential causes of misshapen poinsettia foliage, suggesting it could be due to fertilizer residue or thrips damage, and provides advice on how to prevent or mitigate these issues.
The document discusses the issue of Fiesta Double Impatiens flowers not fully blooming due to lack of calcium uptake, which can be affected by high temperature and humidity, and provides solutions such as adjusting watering cycles, increasing air movement, and ensuring adequate calcium in fertilization.