Greenhouse construction is time-consuming, time-consuming, and expensive. After completion, it is generally used for many years. Many factors such as fertilization and spraying of pesticides have caused serious soil pollution in greenhouses. Many greenhouses have experienced large amounts of fertilization, but the effect of increasing production is not obvious and production is reduced. . Therefore, the majority of vegetable farmers must pay attention to giving greenhouses reasonable fertilization in order to achieve the purpose of increasing production and income.

First, increase organic fertilizer

The addition of organic fertilizer can not only nutrient vegetables, but also improve the physical properties of the soil and increase soil fertility. It is advisable to use mixed organic fertilizers (eg, chicken manure, pig manure, etc.) and non-decomposing crop stalks (such as corn stover, wheat straw) in combination. According to tests conducted by the Nanjing Institute of Soil Science, Chinese Academy of Sciences, non-decomposing organic matter is obviously more effective in increasing the activity of active humus in soil humus than heap rot organic matter. However, the application amount should not be too large and the application time should not be too late. Generally, the application amount per mu is about 1000 kg.

Second, reasonable arrangements for gargle, to the ground

In the same shed, according to the characteristics of crops, it is reasonable to arrange yakou and implement the combination of planting and breeding. The following types are common: (1) Winter and spring vegetables, summer and autumn food. Planting vegetables in winter and spring, planting food crops in summer and autumn, and taking grain and vegetable intercropping to avoid the occurrence and harm of root knot nematode disease of vegetables, and to prevent the occurrence and harm of root diseases such as vegetable wilt and root rot. (2) Winter and spring vegetables, summer and autumn. Planting vegetables in the winter and spring, and adopting shade nets or grasshoppers in the summer and autumn, and developing aquaculture in sheds, such as raising chickens and ducks, will not only multiply the benefits, but also fertilize the soil in the shed. (3) Winter and spring vegetables, summer and autumn fat. Planting vegetables in winter and spring, growing green manure crops in summer and autumn, and deep-turning the soil in autumn, and seeking to plant a green manure crop in 2-3 years.

Third, rational deep plowing

Deep plowing and thickening of the tillage layer can improve soil structure and ploughability, reduce soil bulk density, make soil, fertilizer, and water compatible, promote soil microbial activity, and accelerate soil maturation. The deep plowing time in greenhouses is usually arranged in summer. After winter and spring vegetables are harvested, they will be ploughed in time to obtain longer drying time and weathering time to promote soil ripening and nutrient release. Deep plowing should be deepened year by year without disrupting the soil layer.

Fourth, compost as base fertilizer

During the growth and development of vegetables, the nutrients needed are more and more comprehensive. It is best to use a variety of fertilizers for the application of basal fertilizers, such as the mixing of delayed effect and available fertilizers, and the combination of available nitrogen and organic fertilizers, so that they can learn from each other and make fertilizers effective. Smooth and lasting.

V. Reasonable top dressing

According to the external performance during the growth and development of vegetables, it is reasonable to chase fertilizing materials such as fertilizers, decomposed high-quality organic fertilizers and so on. In general, the amount of fertilizer needed during the vegetable growth period is increased. In addition to applying the appropriate amount of nitrogen fertilizer, the amount of phosphorus, potassium, and trace elements should be increased. Since the vegetables have been ridged at this time, it is difficult to apply deep fertilizer to the top dressing and can be flushed with water. Shi.

Six, change the way of irrigation

Conditional drip irrigation technology can be adopted. Tests have shown that drip irrigation technology in greenhouses can delay soil compaction, save water, prevent secondary salinization, and prevent flooding due to flooding and increase the humidity in the greenhouse, resulting in high incidence of diseases.

VII. Spraying "free deep plowing" soil conditioner

Without deep ploughing soil conditioners containing high active substances, using water as a medium can effectively break soil compaction caused by long-term application of chemical fertilizers and other extensive management, increase soil aggregate structure, conserve water and fertilizer, reduce soil-borne diseases, and promote root growth. 200 grams per acre without deep ploughing soil conditioner spraying 100 kilograms of water between the rows of vegetables, should avoid plants, the soil should be moist.

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Nootropics powder or Nootropics, are a diverse group of cognitively enhancing compounds that are classified as lassi, plant, vitamin and fuel
I. Lassie drugs to promote wisdom
Rasciates are based on the compound piracetam and tend to work by enhancing the corpus callosum (the brain region that connects the two hemispheres), which can positively affect creativity and speech, acting as a glutamate or AMPA regulator (a subclass of neural receptors involved in learning and memory), brain circulation, brain metabolism, and more.
Lassi is the first class of psychotropic drugs that have been studied based on the naturally occurring amino acid Pyroglutamate (5-oxopyrrolidine-2-carboxylicacid). Most of them work by using glutamate receptors as agonists (compounds that mimic or enhance receptor activity) to enhance and enhance cognitive function. They are non-toxic, safe and do not have any addictive effects.
Piracetam, known chemically as 2-oxo-1-Pyrrolidineacetamide, is the most popular of the rascicidal drugs. Piracetam is known as nootropil in other countries. Piracetam is water soluble and is the best Nootropics studied. Piracetam is used in more than 100 countries and has been shown to improve articulation, memory, concentration, overall cognition and more.
Anisetan (anethacetam) is a fat-soluble form of piracetam, which is known in some countries as Ampamet. It's fat-soluble, and it's an ampakine drug (a class of compounds being developed by DARPA to create mind-enhancing super-soldiers).

NeuroPEPT, chemically known as n-phenylacetyl-L-Prolylglycineethylester, is a novel aminate glycine and a precursor of a naturally occurring peptide in the human brain. It is 1000 times more effective than piracetam and has high bioavailability. It is considered to be the third generation of lasciform nootropics.

2. Plant drugs promoting wisdom

These compounds are found in plants (or produced by plant compounds) to actively support cognitive or emotional health. Huperzine A (L-hupezine) is a common example of a plant nootropics. Huperzine A is an alkaloid extracted from the endemic Chinese plant Huperzine. Studies around the world have found that huperzine A can enhance memory, improve memory impairment, improve the efficiency of mental activities, senile memory decline and alzheimer's disease, adolescent learning disability and memory enhancement have significant improvement effect.
Three, vitamin drugs to promote wisdom
These compounds of vitamin stimulants have improved absorption, nootropic effects, and reduced side effects. They are made from vitamins or natural compounds found in the brain. They are very safe and non-toxic and have a long history of research and use around the world.
Enhanced versions of vitamins or related compounds are more effective than their counterparts. Such drugs include edibenquinone (associated with coenzyme Q), pyrimercaptan (associated with vitamin B-6), Picamillon (associated with GABA and vitamin B-3), Fenebute (associated with GABA), methylchlorophenol hydrochloride (associated with dimethylaminoethanol), and more.
Iv. Fuel drugs promoting wisdom
Fuel enhancers are compounds that act as precursors of major neurotransmitters and act as "fuel" for the brain. Such drugs include :ALC, phosphocholine, cyticoline, DMAE, chlorophenol hydrochloride ester, theanine, tyrosine, etc.
Citicoline is a source of choline that has been shown to improve memory and cognitive function. Citicoline is a water-soluble nootropic of the choline chemistry. CDP choline can be used to increase dopamine receptor density and is reasonably used to treat or contribute to ADHD. Acetylcholine is a neural receptor involved in memory processes and development in the brain. Citicoline helps to promote brain health by increasing acetylcholine synthesis and development in the brain and restoring the level of lecithin. It helps increase brain glucose metabolism and brain blood flow.
Phosphocholine is a phospholipid metabolite found concentrated in the membranes of neurons. It comes from lecithin, which is very well absorbed and crosses the blood-brain barrier. In the brain, phosphocholine supports brain function and learning processes by directly increasing acetylcholine synthesis and secretion. Phosphocholine acts as a precursor membrane phospholipid to support neuronal health and improve signal transmission

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