In recent years, in the process of using plastic film to cover greenhouses to cultivate counter-season cucumbers, when cucumbers enter the fruiting period, there are often cucumbers that grow well in the early stages, and sudden acute seedlings appear within a few days. This kind of acute atrophy of cucumber is a kind of physiological disease, and its formation reasons are: first, continuous rain or snow, steep and clear after snow, temperature inversion leads to rapid death of seedlings; second, cucumber enters flowering and fruiting period, sunny days, high temperature, and air volume Large, rapid transpiration of the leaves, some plants with poor hair roots began to shrink, and the whole plant withered with severe water loss; third, the flat film of the greenhouse partially damaged, cold winds into the wilting dead seedlings; Fourth, the fertilization concentration Large, especially fertilizers applied near the roots and necks of cucumbers can easily burn dead seedlings.
In places where greenhouses are used for cultivation, acute cucumber atrophy occurs in varying degrees every year. For early prevention, the following measures should be taken:
One, due to the amount of water due to seedlings. The root system of cucumber is relatively developed, but most of it is concentrated on the surface of the soil. In order to promote rooting, avoid watering mistakes and inhibit the growth of root groups, it is necessary to pay attention to watering the seedlings. One is to plant water with less water. The second is pouring water back to the seedlings. The temperature is low, soil moisture is high, even rainy weather, and little or no water is returned. The third is to enter the period of fruiting melons, combined with topdressing, with water fertilizer, once every 10 days or so, to prevent excessive application of fertilizers once burned. The fourth is to water in the sunny morning, avoid watering in the afternoon and early evening. Fifth, it is not suitable for raining water in the entire shed. Sixth, it can only be infiltrated with fine water, and it cannot be flooded.
Second, reasonable control of the temperature inside the shed. The initial period of colonization is generally not ventilated. It is maintained at 25-30°C in the shed during the day and 12-15°C at night and not lower than 10°C. With the growth of melon seedlings, it is necessary to timely adjust air temperature control, its role is: one can prevent the occurrence of diseases; two can avoid plant aging; third is to add carbon dioxide. However, the regulation of temperature must be conducive to the growth of cucumbers, generally the daytime temperature rises to 30 °C when the ventilation, the afternoon cooling to 28 °C when closing the film. The temperature should not fall below 12°C during the result.
Third, strengthen the repair and protection of greenhouses. Often dredge the ditch around the cucumber planted in the greenhouse to ensure smooth flow, so that drainage can be done in a timely manner to achieve rapid water filtration. Every day, it is necessary to check if the shed film is damaged or leaking. Pay attention to repair and increase the temperature of the insulation. Before the advent of cool winds, cover the grass and lock the ropes to prevent the cold winds from invading the seedlings.
In places where greenhouses are used for cultivation, acute cucumber atrophy occurs in varying degrees every year. For early prevention, the following measures should be taken:
One, due to the amount of water due to seedlings. The root system of cucumber is relatively developed, but most of it is concentrated on the surface of the soil. In order to promote rooting, avoid watering mistakes and inhibit the growth of root groups, it is necessary to pay attention to watering the seedlings. One is to plant water with less water. The second is pouring water back to the seedlings. The temperature is low, soil moisture is high, even rainy weather, and little or no water is returned. The third is to enter the period of fruiting melons, combined with topdressing, with water fertilizer, once every 10 days or so, to prevent excessive application of fertilizers once burned. The fourth is to water in the sunny morning, avoid watering in the afternoon and early evening. Fifth, it is not suitable for raining water in the entire shed. Sixth, it can only be infiltrated with fine water, and it cannot be flooded.
Second, reasonable control of the temperature inside the shed. The initial period of colonization is generally not ventilated. It is maintained at 25-30°C in the shed during the day and 12-15°C at night and not lower than 10°C. With the growth of melon seedlings, it is necessary to timely adjust air temperature control, its role is: one can prevent the occurrence of diseases; two can avoid plant aging; third is to add carbon dioxide. However, the regulation of temperature must be conducive to the growth of cucumbers, generally the daytime temperature rises to 30 °C when the ventilation, the afternoon cooling to 28 °C when closing the film. The temperature should not fall below 12°C during the result.
Third, strengthen the repair and protection of greenhouses. Often dredge the ditch around the cucumber planted in the greenhouse to ensure smooth flow, so that drainage can be done in a timely manner to achieve rapid water filtration. Every day, it is necessary to check if the shed film is damaged or leaking. Pay attention to repair and increase the temperature of the insulation. Before the advent of cool winds, cover the grass and lock the ropes to prevent the cold winds from invading the seedlings.
Pine nuts (also called pignoli) are the edible seeds of pines (family Pinaceae, genus Pinus). About 20 species of pine produce seeds large enough to be worth harvesting; in other pines the seeds are also edible, but are too small to be of notable value as human food. Our Chinese pine nuts grow in Heilongjiang and Jilin province of China. The mainly varieties are pure red pine nut kernel and cedar pine nut kernel. Pine nuts have been eaten in USA, Europe, Asia and many other countries. They are frequently added to meat, fish, salads and vegetable dishes or baked into bread.
Pine Nut Kernel
Dry Fruit Pine Nut Kernel,Pine Nut Pure Red,Wholesale Pine Nut Kernel,Raw Pine Nut Kernel
Ningxia Shun Yuan Tang Herbal Biotech Co., Ltd. , http://www.nxshunyuantang.com