The yellow shoots of the new shoots growing late in the late period appear to be iron-deficient. The main reason is that the soil is highly alkaline, and iron in the soil cannot be absorbed by the roots.
Control methods:
1, spray iron fertilizer. Iron fertilizer is mainly f…
Calcium deficiency in grapes causes the leaves to curl in the opposite direction, the new leaves are dark green, the grape cracking rate is severely increased, the physiological diseases such as grape shrinkage disease are aggravated, the fruit ha…
Answer: Soil fertilization method: A circular ring ditch is excavated in the chestnut canopy drip line. The ditch is 25 cm wide and 20 cm deep. Each plant has applied 1 kg of calcium phosphate, 0.3 kg of urea and 0.25 kg of borax. When fertilizing…
In late August, it is the main season for the onion and ginger. In previous years, most farmers often chose to apply fertilizer at one time. In fact, this method of topdressing is wrong. So how should the green onions and ginger be topdressed, how…
1. Increase the ground temperature. Before the garlic enters the greening period, it should be based on increasing the ground temperature. It is necessary to remove the coverings on the membrane, such as leaves, crop straws, dead garlic leaves or …
Vegetable experts remind farmers to pay attention to the following three problems in the management of greenhouse vegetables:
Do not fertilize excessively. Because of the high temperature and humidity in the greenhouse, the decomposition of organic fertilizer is fast, the amount of…
Users who don't know the working principle of the reactor weighing module are all looking at it! The reactor weighing module is a new type of weighing element that combines components such as load cells, load transfer devices and mounting connectors. It can be …
The Chinese medicine L. sinensis is a perennial herb. The model specimens are collected from northeastern China and distributed in Heilongjiang, Jilin, Liaoning and other places in China. They have the effects of dispelling cold and hurricane, relieving pain, warming lu…
In order to increase the yield of tomatoes in greenhouses in winter, the farmers are reminded to pay attention to the following four points in the management of fertilizer and water.
First, pay attention to …
The citrus trees planted in many places after the twelfth lunar month were subjected to different degrees of freezing damage. The leaves, branches, buds, trunks, etc. were all frostbittened, frozen, and even frozen and seriously affected the norma…