Tag: medium element fertilizer
Urea mixed with washing powder can prevent aphids? Yes, because the urea has the function of destroying the body chitin of aphid, and washing powder containing Sodium alkyl benzene sulfonate which is surfactant sodium can make aphid wax layer dissolved of body wall so that attached to it to form impermeable, airtight layer of film, resulting in aphid stomata blocked and die. The using of urea mixed with washing powder has the features of high efficiency, no pollution, convenient and easy to top dressing. The […]
Chestnut is deciduous trees, the height of chestnut is up to 20 meters and its high life is up to hundred years. After 4-8 years growth, the chestnut trees will be strong , after 15 to 16 years will get into the fruit period as well as after graft breeding 2-3 years, will start to have fruit, after 4-8 years, will get into the fruit period. In addition, if the chestnut trees are kept in good management conditions, the fruit […]
What are the dosage of medium and trace element of fertilizer for crops? The dosage of medium element on soil is about the same with nitrogen (N) phosphorus (P) and potassium (K) or even more, but that of trace element is less, such as most field crops with only 1-2 kilograms of zinc sulfate and 0.5-1 kilograms of borax. The dosage for cash crops such as fruit and vegetables is a little higher but still […]
