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Control Methods and Technical Key Points for Physiological Diseases of Button Mushrooms
Button mushrooms are relatively sensitive to their environment. A poor cultivation environment will hinder their normal growth and development, produce various abnormal phenomena, and lead to reduced yield and lower quality. Common physiological diseases of button mushrooms include excessive mycelial growth, hard opening of the caps, thin-skinned early opening, and the appearance of soil-level mushrooms and hollow-stemmed white-core mushrooms. They are described below: Symptoms of excessive mycelial growth: after the mushroom bed is cased and watered, the fluffy mycelium of the button mushroom will continuously grow toward the surface of the fine soil. In severe cases, it will form a fine, water-impermeable mycelial mat, thereby delaying the time of fruiting and reducing the mushroom
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What are the morphological characteristics of geraniums?
Morphological characteristics of geraniums: plant height 30 cm to 60 cm, the whole plant covered with fine hairs and glandular hairs, with an unusual odor. Stems succulent. Leaves alternate, round to kidney-shaped, usually with a horseshoe-shaped pattern inside the leaf margin. Umbels terminal, with a long common peduncle; flowers come in white, pink, flesh red, light red, bright red and other colors, and there are single-petaled and double-petaled forms, as well as variegated-leaf varieties with white, yellow and purple markings on the leaf surface. The flowering period is from May to June; except for dormancy in midsummer, it can keep blooming if the environment is suitable. It prefers cool conditions, but is not cold-tolerant. It dislikes high temperatures, prefers full sunlight, and prefers well-drained fertile loam
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How to prevent and control non-physiological diseases of mushrooms?
(1) Deformed mushrooms Deformed mushrooms are mostly induced by temperature differences or unfavorable environments; they may also be related to the strain used. Deformities mainly include the following types: 1. Hollow stipe. Mushrooms on the bed look normal, but when the base is cut off, part of the stipe is found to be hollow, usually with a ring-shaped cavity around a hard core. Afterwards, the cut surface of the stipe may crack and then curl backward, causing the mushrooms to lose their appealing appearance and decline in quality. This is mainly caused by low air humidity during the fruiting period, rapid evaporation of water from the mushroom bodies, excessively dry casing soil, and the fruiting bodies being unable to obtain water.
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Physiological Disorders of Mushrooms and Their Control Methods
Mushrooms are relatively sensitive to their environment. A poor cultivation environment will hinder their normal growth and development, produce various abnormal phenomena, and lead to reduced yields and lower quality. Common physiological disorders of mushrooms include excessive mycelial growth, hard opening of the caps, thin-skinned early opening, and the appearance of ground-button mushrooms and hollow-stem white-core mushrooms. They are described below: Symptoms of excessive mycelial growth: after the casing soil of the mushroom bed is watered, the fluffy mycelium of the mushroom will continuously grow toward the surface of the fine soil, and in severe cases will form a fine, dense, water-impermeable mycelial mat, thereby delaying the time of fruiting and reducing the
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What are the control methods for physiological diseases of mushrooms?
Hard opening of the cap: When mushrooms encounter abnormal weather, the phenomenon of young fruiting bodies opening their caps prematurely is called hard opening of the cap. It generally occurs at temperatures above 18°C, with a temperature difference of about 10°C, or under sudden temperature drops. Insulation work should be done well before sudden temperature changes, and the relative air humidity in the mushroom house should be increased. Malformed mushrooms: The causes of formation are uneven thickness of the casing soil, low fruiting position, and carbon dioxide content in the mushroom house exceeding 0.3%; or they are caused by pesticide damage, diseases, and insect pests. Attention should be paid to the quality of the casing soil and ventilation, preventing harmful gases from entering the mushroom house; attention should be paid to prevention
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What role do snakes play in ecological balance?
Most snakes are natural enemies of rodents, such as the black-browed rat snake, the oriental rat snake, the gray rat snake, the pit viper, the king rat snake, the brown-black rat snake, the yellow-striped racer, the brown-gray racer, and the cobra, all of which are snakes that feed mainly on rodents. In addition, some snakes feed exclusively on termites, and they undoubtedly play a huge role in preventing termites and eliminating the damage termites cause to humans. Snakes of the genus Oligodon feed exclusively on the agricultural pest slug. The young of the common European adder and the pit viper mainly prey on insects, and the steppe viper can prey on a large number of insects in a single summer, more than 90% of which are
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What meteorological factors does jujube tree growth require?
Germination stage: when the daily average temperature reaches 13--14°C, germination begins; at 17°C, leaves unfold. Flowering stage: when the daily average temperature reaches 19--20°C, flower buds appear, and at 20--22°C flowering begins. During full bloom, the optimal temperature is 22--27°C and the relative humidity is 60%--70%. A relative humidity below 25% will cause a large amount of "scorched flowers" and young fruit drop. Fruit ripening stage: the optimal temperature for fruit development is 25--27°C, with relative humidity around 75%. Optimal temperature during the fruit ripening stage 1
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Introduction to the Ecological Distribution Range and Main Habitats of the Mud Carp
The mud carp is a warm-water fish, and its appetite is strong when the water temperature is 15-30°C. When the water temperature is above 31°C, the mud carp's appetite declines; when the water temperature is below 14°C, the mud carp gathers in deep water areas and is not very active; when the water temperature is below 13°C, it stops feeding; when it is below 7°C, it cannot survive. Because the mud carp has poor cold resistance, overwintering mud carp in pond aquaculture in the Pearl River Delta is usually stocked in deep ponds sheltered from the wind and facing the sun, and sometimes additional cold-proof measures are needed. In wild ponds in the mountainous areas of northern Guangdong, however, mud carp find it difficult to
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A Detailed Guide to the Morphological Characteristics and Management Methods of Coreopsis
Morphological characteristics: A perennial herbaceous plant with a perennial root system. The leaves are mostly opposite, rarely alternate, entire, shallowly lobed, or deeply cut. The flowers are solitary or in loose panicles; the involucre is in two rows, with 3 bracts per row, fused at the base. The ray florets are in 1 row, broadly ligulate, yellow, brown, or pink. The disc florets are yellow to brown. Main species: Coreopsis basalis, plant height 30~90cm, the whole plant sparsely covered with long hairs, leaves entire and shallowly lobed, stem leaves oblong-spatulate or lanceolate, stem leaves 3-5 lobed, capitulum diameter 6-7cm, with long peduncles, flowers
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What is the relationship between the farming of the four major Chinese carps and meteorological conditions?
Fish live in water, but they are also closely related to meteorological conditions. Temperature: fish are ectothermic animals, and the water temperature is their body temperature. The water temperature directly affects their life metabolism. The suitable temperature range is 10 to 33°C, and the optimal temperature is 25 to 30°C. Below 10°C they begin to hibernate. At 10 to 15°C they begin to feed and grow slowly. At 15 to 20°C their appetite increases and they grow faster. At 20 to 30°C they grow fastest. Above 30°C their growth slows again. Therefore, when feeding, pay attention to
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