Some of the recent wintering greenhouse cucumbers have begun to be listed, and wintering tomatoes have begun to produce results, and some have entered the period of fruit enlargement. When I went to the countryside to investigate, I discovered that many vegetable farmers blindly pursued previous crop yields, and excessive use of high-nitrogen and potassium fertilizers resulted in poor early root development of cucumbers, serious leggy, and less fruiting. Tomatoes were inhibited due to the excessive use of potassium and calcium fertilizers. Absorption, resulting in magnesium and calcium deficiency, increased rot and rot. How to top-dress fertilizers according to the growth characteristics of each growth period of the vegetables and the laws requiring fertilization should attract the attention of farmers. Here I propose three suggestions:
First, the initial results in the top dressing while forgetting to raise the author in Shandong Shouguang, Jiyang and other greenhouse vegetable areas, found that some tomatoes in the first fruit, the wolfberry was weak, some vegetable farmers were strong, before the weather did not cool, the super The amount of chemical fertilizers was used, and some even rushed to fertilize some unknown hormones. As a result, the seedlings grew thin and weak, and the roots were damaged. Not only did they fail to achieve the effect of strengthening and protecting the fruits, but they were buried in high-yielding production. Under the hidden dangers. The correct approach is to properly increase the use of high-nitrogen and potassium fertilizers when cucumbers and tomatoes are first set in fruit. It is recommended to use 5 to 10 kg of “Wordilong†protein biofertilizer per acre. "Waldilong" protein biological fertilizer can loosen the soil, increase soil permeability, increase the activity of soil beneficial microorganisms, and is conducive to the growth of crop roots. The roots of crops are developed to lay a good foundation for stable production and high yields.
Second, the appropriate use of chemical fertilizers to reduce soil salt damage Now many shed soil surface green, red, is a typical manifestation of salinization. The general planting time is long, the use of chemical fertilizers is large, the organic matter of the soil is low, and the lack of beneficial microorganisms will increase the salinization. In this soil, cucumber and tomato have poor root system, weak scorpions, and slow fruit enlargement. It is recommended to use “Magic 6~7†3 kg per acre to mix with “Waldilong†pupa protein bio-fertilizer to adjust soil pH and effectively reduce salt damage.
Third, the scientific use of foliar fertilizer, in response to the parts and symptoms of nutrient deficiency, the implementation of physiological diseases outside the greenhouse fertilizer greenhouse vegetables in recent years than the weight of the exposed place, through the crop leaf surface fertilizer is a scientific, economic, effective A good way. However, there should be some choices for supplementing fertilizers on the leaves of crops. It is not that the spraying of leafy fertilizers is better. A lot of cucumber leaves are huge and their pods are very long, which is related to the inability to use the foliar fertilizers correctly. In order to control the scorpion's appetite, some use some foliar fertilizers that are profusely controlled or contain hormones, causing excessive control and causing fertilizer damage and hormonal poisoning, resulting in unnecessary losses. Due to the special growth environment of the greenhouse, the crops often suffer from deficiency of nutrients. When the crops lack magnesium, they are generally yellow in the middle of the crops. Iron deficiency and zinc deficiency are generally manifested in the growing point of the crop, namely the yellowing of the upper leaves of the crop. The hair is light, the leaves are small, and the leaves are not stretched; Farmers should use foliar fertilizers selectively for the parts of the symptoms. Sometimes the lack of crops is not the lack of these elements in the soil. It is also related to excessive watering, drought, low temperature, and poor root development. When the lack of crops is found, it is recommended to use 5 to 10 kg of “Waldilong†prion protein biological fertilizer per acre, combined with flushing, foliar spraying of corresponding iron, magnesium, calcium, zinc, boron and other foliar fertilizers. Will play a better control effect.
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