Some vegetable farmers will increase the amount of pods and melons in order to obtain high yields. This “predatory†plant nutrients, resulting in weaker growth of cucumbers in the later period, yellowing of leaves, shortening of melons, and movement of melons, resulting in severe melons Topping phenomenon. If you encounter even a cloudy day, it can easily lead to a “resting†phenomenon. If you do not strengthen management, the loss is quite serious. The cause of the cucumber “resting†stays too much: In order to increase the output, the farmers often take improper measures. All the melons that can sit are left, and the excess female flowers are not removed. Harvesting is not timely: Due to the unstable price of guarana, sometimes in order to wait for a high price, the melons that have already grown up are left on the quails, causing “falling squatsâ€. The result of this is to break the balance between vegetative growth and reproductive growth of the plant, which results in excess organic nutrient consumption in the plant. Improper fertilization: During production, there are “multiple, chaotic, miscellaneous†phenomena in fertilization by vegetable farmers. In particular, the excessive use of compound fertilizers makes the concentration of soil solution too high, resulting in root damage, rust color or partial necrosis of the root tip, weakening the absorption capacity of the root, affecting the normal growth of the plant. Overdosing: During the wintering of cucumbers in sunlight greenhouses, if the environment in the greenhouse is not well controlled, it is extremely prone to diseases. Most vegetable farmers only pay attention to chemical control, neglecting agricultural measures, and have short intervals between application and concentration exceeding the standards, resulting in excessive use of fungicides, causing phytotoxicity, plant leaves becoming shriveled, photosynthesis down, and indiscriminate application. Hormone pesticides cause physiological disorders in cucumber plants and prevent the growth of cucumbers from growing normally. Improper watering: vegetable farmers do not pay attention to weather conditions, nor do they analyze the pros and cons of watering according to the law of plant growth. If the watering meets the influence of adverse weather such as continuous cloudy days, low temperature and strong cold current, the ground temperature is lower than 12°C, and the relative humidity of the soil is higher than 85%, causing the roots of cucumber to be rooted, thus inhibiting the growth of roots, The impact of growth is greater. Cucumbers "rest stop" preventive measures to strengthen the plant adjustment: need special attention is that the cucumber can not fall when falling vines too low, too low is not conducive to the normal growth of cucumber. After falling, the cucumber plants are maintained at 1.5 meters, ensuring that there are more than 15 functional leaves on the plants to ensure normal photosynthesis and maintain normal growth. In addition, for more plants sitting melon, should be appropriate sparse melon, cut can not see the melon stay, otherwise it is easy to cause break in the middle and late. Bottom yellow leaves should be removed in time to reduce consumption. Even the cloudy days to strengthen light management: I have done experiments: the cloudy sky near noon when the open grasshopper, if the appropriate release of air for 2 hours, not only will not reduce the temperature, but will increase 2 °C. Even after the sunny days suddenly can not suddenly uncover alleviation, should be "revealed" to avoid flash seedlings. Pay attention to fertilizer and water management: during the winter, the temperature is low, the light is weak, and the watering can not be too diligent. Generally, water can be poured in about 20 days, and flood irrigation can not be performed. Also note that after the watering, wait until the temperature in the shed increases to 30°C to release the air, and the air outlet should be small to large. Do not overdo it at one time to avoid flashing. Fertilizers are usually flushed with water, and fertilizers containing humic acid or amino acids that are easily absorbed by cucumbers should be applied. The amount of one-time use should not be excessive. Strengthen disease prevention and control: In winter, cucumbers are susceptible to downy mildew, brown spot disease, gray mold, and bacterial keratopathies. For these common diseases, we must establish the idea of ​​“prevention-based, comprehensive prevention and control†to ensure sheds. There are no susceptible plants within. In addition, during the winter, due to lack of ventilation in time, the shed is prone to phytotoxicity after spraying, so it is necessary to strictly control the use of concentration when using drugs, do not mix three or five kinds of pesticides to reduce the occurrence of phytotoxicity.
The yellow mealworm is not only rich in protein, fat, polysaccharid and other organic macromolecular nutrients, but also rich in phosphorus, potassium, iron, sodium, aluminum and other trace elements. For every 100g of the yellow mealworm larvae, the protein content of dry powder is between 48% and 54%, the fat content is between 28% and 41%, and the contents of vitamin E, B1 and B2 are also high. Therefore, the yellow mealworm can provide high quality protein for the crab, make the crab strong and delicious.
Crab Feed,Crab Feed 2018,Crab Feed 2019,Local Crab Feeds Fenxi Kangruilai Biotechnology Co., Ltd. , https://www.kangruilai-petfeed.com