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What are the new methods for high-temperature mushroom cultivation?
Mushrooms are tender and delicious, making them a traditional edible fungus variety that people generally love. However, the common mushroom variety is the button mushroom (Agaricus bisporus), with a fruiting temperature of around 16°C, coming to market in autumn, winter and early spring. The edible fungus technology extension station of Zhangjiagang City, Jiangsu Province, introduced and cultivated a high-temperature mushroom variety in 1998: the four-spored mushroom (Agaricus bisporus, four-spored type), with a fruiting temperature of 26-31°C; the fruiting bodies still grow well in July and August when temperatures reach as high as 26-38°C, and it can maintain continuous batch production capacity. The following is a brief introduction to high-temperature mushroom cultivation techniques.
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Rice cultivation in cold regions requires water-saving irrigation, selection of improved varieties, making the most of accumulated temperature, and growing strong seedlings
Heilongjiang Province is located in a high-cold region, where heat and water resources are relatively scarce, annual atmospheric precipitation is extremely unevenly distributed, spring is windy with little rain, and drought is quite severe. The author discusses how to achieve water-saving, high-quality, and high-yield rice cultivation in cold regions. 1. Selecting excellent varieties is the prerequisite for ensuring high-quality and high-yield rice. The varieties that rice farmers plant directly affect the quality and yield of rice. Therefore, in production, varieties with a suitable maturity period, excellent quality, stable and high yield, and strong stress resistance should be selected. First, select varieties that have passed national approval, been named, and promoted, which can ensure relatively stable rice traits, steady and rising yields, and safe and reliable use; second, introduce varieties with suitable maturity periods according to different accumulated temperature zones, and never introduce varieties across zones; third, pay attention to seed quality, and select first-grade improved seeds with a purity above 98%, a germination rate above 90%, and a moisture content no higher than 14% for production use; fourth, purchase seeds from nationally certified seed companies, research institutes, and agricultural colleges, and eliminate blind planting; fifth, in actual planting, unify varieties as much as possible, plant in contiguous fields, form scale, and achieve industrialized planting.
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What temperature requirements does soybean growth have? Detailed explanation of the suitable temperature range
Soybean is a warm-season crop and has different temperature requirements at each growth and development stage. First, seed germination is very sensitive to temperature: the minimum germination temperature is 6°C, emergence is 8-10°C, and seedlings suffer slight frost damage at a low temperature of -4°C. Throughout the growth period, the optimum growth temperature for soybean is a daily average temperature of 20-25°C, among which the optimum growth temperature for seedlings is 20-21°C, the flower bud differentiation stage is 21-23°C, the flowering stage is 22-25°C, the pod-setting and seed-filling stage is 21-23°C, and the maturation stage is 19-
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What are the temperature requirements for soybean growth and development?
Soybean is a warmth-loving crop, and the accumulated temperature required by soybean varieties in Heilongjiang Province is about 1800-2700°C. (1) The optimum temperature for seed germination is 18-20°C, at which germination is fast and seedlings emerge evenly; the minimum temperature is 6-8°C, but germination is very slow; when the temperature reaches 33-36°C, germination is fastest, but the seedlings are weak. (2) The minimum temperature required for emergence is 8-10°C. (3) For flower bud differentiation, 21-23°C is more suitable. For flowering, 22-25°C is more suitable. If the temperature is too high or too low, there will be fewer flowers. (4) The suitable
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What effect does high summer temperature have on Gastrodia elata?
In low-altitude hilly areas, under high temperatures of 32-34°C, lasting 10 days (240 hours) has little effect on Gastrodia elata and can still produce arrow tubers, while when the high temperature lasts 15 days (360 hours), the yield of Gastrodia elata will be affected. Therefore, the baseline of Gastrodia elata's tolerance to high temperature is relatively high. Summering of Gastrodia elata is not only related to the value of the absolute high temperature, but depends even more on the duration of the high temperature. Because under outdoor natural conditions there are monthly temperature differences and daily differences from day-night changes, and in addition artificial cultivation adopts shading and other regulating measures
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How to regulate temperature when cultivating Gastrodia elata in plains and low mountain areas
The biggest difficulty in cultivating Gastrodia elata in plains and low mountain areas is controlling high temperatures and regulating temperature differences. (1) For indoor cultivation, cold water can be sprayed in the walkways and space, but water must not accumulate at the bottom layer of the Gastrodia elata. At the same time, open the opposing windows facing north and south for ventilation, or use an electric fan to cool down while opening the windows, so that air convection is achieved and the cooling goal is reached. When the temperature is low, close the doors and windows, and make the temperature difference as small as possible. (2) For outdoor cultivation, more broadleaf trees and green vine plants can be planted on the cultivation site, so that the cultivation site is cool and moist.
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Four Effects on Rice After Exposure to High Temperatures
Rice has different temperature requirements at each growth and development stage, and there is an optimal temperature for each. If the upper or lower critical temperature limit is exceeded, abnormal phenomena, namely physiological disorders, will appear in the growth and development of rice. Therefore, attention should be paid to the effects of high temperatures on rice. 1. Effects of high temperatures on each growth stage of rice. 1. Heading and flowering stage. Generally, rice prefers a temperature of 25-30°C during the heading and flowering stage. When the temperature is below 25°C or above 30°C, large numbers of empty and shriveled grains will appear in rice. At the same time, high temperatures also
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How to prevent rice sheath blight? Beware of high temperature and high humidity weather
Sheath blight, also known as banded leaf blight, has a great impact on the growth and development of rice. It not only weakens the absorption capacity of the root system, but also affects the photosynthesis of leaves, resulting in an increase in empty and shriveled grains, a decrease in 1000-grain weight and a decline in yield. Therefore, attention should be paid to the prevention and control of sheath blight in production. The following introduces the main symptoms, occurrence characteristics and control methods of this disease for reference. Main symptoms When rice leaf sheaths are infected, small dark green water-soaked spots with blurred edges appear near the water surface, later expanding into oval or cloud-like shapes, with the center grayish green
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Impact of High-Temperature Heat Damage on Rice Production in Fanchang County and Defensive and Remedial Measures
In the process of rice production, the climate factors with the greatest impact and the hardest to control are temperature and water. Reasonable irrigation can supplement and regulate water, but temperature is difficult to control, and it exerts a major influence on the entire life of rice. Rice is the main crop in grain production in Fanchang County, ranking first among grain crops in both planting area and total output. At present, the rice planting area in Fanchang County is about 16,360 hectares (including the multiple cropping index), of which about 13,191 hectares are middle-season indica rice (mainly hybrid rice), about 1,514 hectares are early rice, and about 1,655 hectares are double-cropping late rice.
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Cultivation Methods for Gastrodia elata Under Different Temperature Conditions
The conditions required by Gastrodia elata and Armillaria mellea are mainly temperature. It can grow and develop normally under conditions of 2-28°C. How to control this condition is the most important factor in whether Gastrodia elata production succeeds or fails. Temperatures across the country can be broadly divided into three major types: (1) Heilongjiang, Jilin, Liaoning, Inner Mongolia, Qinghai, **. In these areas, it must be ensured that the seedlings do not freeze in winter, and in summer there is no need to consider the effect of high temperatures on the growth of Gastrodia elata. The best plan is: plant Gastrodia elata indoors, with slight heating in winter, so that the indoor space does not freeze.
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