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What diseases should be prevented and controlled when growing sunflowers?
What diseases should be prevented and controlled when growing sunflowers? Please give an introduction. Sunflowers need prevention and control of the following diseases: I. Symptom identification 1. Sunflower rust is an important disease of sunflowers, reducing yields by 40-80% in pandemic years. After infection, rust-like spore piles can form on leaves, petioles, stems, flower discs and other parts. When leaves are infected...
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When to harvest peanuts? Master the methods for judging maturity
How do you determine when peanuts can be harvested? Please explain that the peanut harvest time should be determined based on the appearance of the plants and the maturity of the pods. From the appearance of the plants, the upper leaves turn yellow, the middle and lower leaves change from green to yellow and gradually fall off, the stems turn yellow-green and become withered and soft, the full-pod rate is above 75%, the pod shells harden, and most pods...
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How to fertilize when growing yam? Detailed explanation of fertilization methods
How to fertilize when growing yam? Please give an introduction. During the seedling stage and vine-running stage, yam mainly grows branches and leaves, so fertilizer should be mainly nitrogen. After budding, it enters the vigorous growth period, the underground tubers begin to expand, and the fertilizer requirement is relatively large. This is the key period for fertilization, and nitrogen, phosphorus, and potassium should be applied together. 1. Base fertilizer. Choose a good field, and before plowing apply per mu...
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What to do when Pleurotus nebrodensis mushrooms grow deformed? Introduction to practical solutions
Help wanted: what methods can increase the yield of straw mushrooms? Farming Network teaches you three methods to increase straw mushroom yield: secondary inoculation - adopting a secondary inoculation measure helps increase straw mushroom yield. Straw mushroom mycelium grows too fast and ages very easily, which weakens its vitality and prevents it from effectively using the nutrients in the substrate to continue...
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When is the suitable harvest time for wheat?
When is the suitable time to harvest wheat? What methods can determine the harvest period? Wheat harvested at the mid-to-late dough stage shows the highest and best yield performance. The mid-to-late dough stage of wheat can be determined by the following methods: First, observe the grains. The grains are generally orange-yellow in varying shades of light and dark. After cutting with a small knife, the cross-section appears waxy and slightly hard, with only the ventral groove area slightly soft. The hollow space near the ventral groove has disappeared, and the back of the grain can still be slightly indented by a fingernail.
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How to scientifically select and keep seed when harvesting wheat?
How do you select and keep seed when harvesting wheat? Here is an introduction. The work of selecting and keeping wheat seed can refer to the following methods: 1. Single-plant (spike) selection: that is, select good seed with the typical characteristics and traits of this variety, high purity and strong seed quality. This method is suitable when the amount of selected seed is small and the amount of seed used is small. Two to three days before harvest, go to the seed field or the main field...
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When is the best time to take cuttings of osmanthus?
1. Choosing the cutting time and managing temperature. For osmanthus cuttings, May and June are best. The suitable rooting temperature for osmanthus is 25°C to 28°C. If the temperature is too low, cover with plastic film, increase light, and raise the seedbed temperature. If the temperature is too high, pay attention to shading, and lift a corner of the plastic film to ventilate and cool it down or use misting to lower the temperature....
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What to do when succulents lose their color in summer? These 5 kinds keep their color even with shade
When the dog days of summer arrive, the temperature gets higher and higher, and many flower lovers don't dare put their succulents out in the sun, so they slowly fade to green! Today, I'll introduce a few kinds of succulents that won't fade into cabbages even in summer! Graptosedum 'Bronze' Graptosedum 'Bronze'...
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What are the key points to note when harvesting Gastrodia elata? Master these for a smoother harvest
(1) Be careful not to damage the tubers. When digging, carefully scrape away the surface growing medium, remove the fungal wood, and gently take out the Gastrodia elata. Take great care not to bruise the tubers, especially the white tubers and small tubers used for seed. (2) Harvest carefully. Search all around and do not overlook or miss any Gastrodia elata. Because the Armillaria mellea around them grows and develops better...
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What should be noted when growing pepper seedlings in summer and autumn?
What should be noted when growing pepper seedlings in summer and autumn? An introduction is given here. Pepper seedling raising in summer and autumn is easily affected by high temperatures, heavy rain, drought and other weather conditions, and seedling diseases and pests occur severely. To ensure normal growth of the seedlings, the following measures should be taken: 1. Prevent high temperature damage. Choose a well-ventilated plot as the seedbed, build a shade shed,...
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