Spring and summer greenhouse crops, your yield is not as good as others, why is it?
After the Qingming Dynasty, the spring greenhouse crops have been colonized one after another, in April to May, we must begin to pay attention to the temperature changes in the greenhouse, in May a variety of high temperature hazards will begin, seedlings roasted, burns and wilts, etc., and in April, the high temperature stress of the early spring shed will come earlier.
Therefore, spring and summer greenhouse crops want to have high yields, in addition to careful selection of fertilizers and drugs, but also to control the temperature, April to May mainly start two aspects: temperature hazards and high temperature stress.
<h1 class="pgc-h-arrow-right" data-track="7" > effects of temperature hazards on crops</h1>
The harm of temperature change is often encountered in the cold spring and rainy days, and the cold in the spring is rapidly reduced in the temperature in a short period of time, which will lead to frostbite at the growth point of the crop, damage to flower buds, and produce wilting.
This can be prevented by leaf spraying of brassinolide and HB-101 in advance, or it can be used after the cold of spring for remediation.
Before use, freeze at low temperatures
After use, mix 15 ml of HB-101 with a bucket of water
Rainy days will affect the quality of the crop's flowering and fruit setting, especially the problem of cracking fruit and melon. Cherry, citrus, tomato, melon, pomegranate and other crops are more prominently split. In particular, this year's large cherry anti-cracking demand is high, which is due to the low price of large cherries last year, many growers did not have bottom fertilizer, so this year's output is estimated to be low and the price is high, and this year's cracking fruit problem is particularly serious.
For this we recommend using Queenstin, 800 times diluted leaf spray, which has a good anti-cracking effect.
The big cherry splits the fruit as soon as it turns color, and it is useless to spray calcium fertilizer? Teach you a trick, and the cracked fruit will be reduced by 70%.
In addition to cold spring and rainy days, drastic temperature changes can also cause great harm to crops, the most common of which is "flashing seedlings". The following picture is a cucumber shed in Jiyang, Shandong Province, last year, after experiencing continuous rain, it suddenly became sunny, and the plant quickly produced a "flashing seedling" phenomenon.
Flash
The leaves of the plants that have flashed the seedlings are curled, the leaf margins are yellowed, and the phenomenon of falling flowers and fruits occurs. Flash seedlings will occur rapidly in a short period of time, it is difficult to remedy, flash seedlings have a huge hidden danger to the later stage of crops, not only prone to outbreak of serious diseases and insect pests, but also the greenhouses where flash seedlings occur tend to harvest one less stubble than the greenhouses that do not have flash seedlings.
<h1 class="pgc-h-arrow-right" data-track="7" > effects of high temperature stress on crops</h1>
There are many manifestations of high temperature stress on crops, the most common of which are falling flowers and fruits, wilting and curly leaves, and growing. At the same time, high temperature stress will also reduce the stress resistance of crops, which in turn will indirectly cause outbreaks of pests and diseases.
When the temperature is too high, the stomata on the leaves of the plant will close, which is actually a protective mechanism for plants to avoid dehydration to some extent. However, if the high temperature time is slightly prolonged, the stomata have been closed, the transpiration effect is almost nothing, and the foliar temperature and growth point temperature of the plant cannot be reduced for a long time, or it will produce dehydration, leaf curling, and wilting.
At the same time, the closure of the stomata will reduce the absorption of carbon dioxide by crops, thereby reducing the rate of photosynthesis, nutrients not only can not be produced, but have been consumed, over time, the entire plant will weaken and die.
Third, high temperature stress also inactivates the relevant enzymes in the plant, so that the normal physiological activities of the crop are "faulted" at each stage. Biological enzymes in plants are narrowly speaking proteins, and high temperatures will denature proteins, and then plants cannot carry out various physiological activities.
In addition, high temperature and high humidity are also the main reasons for the growth of the apprentice.
Leaf stomata
It can be seen that the damage of variable temperature and high temperature stress on the yield of spring and summer greenhouse crops is huge, and the solution to this is generally divided into two categories: field management and pharmaceutical application. Field management is nothing more than ventilation, cooling, improve the temperature and humidity in the shed, and the application of agents is generally the use of some growth regulators to improve the stress resistance of crops.
However, the effect of these measures is still relatively limited, God's face is a look for a while, how can we go further and reduce the damage of uncomfortable temperatures to crops?
<h1 class="pgc-h-arrow-right" data-track="7" > Cool Green: The successful fruit of 2-hexenal high temperature resistance</h1>
To introduce you to a new product - cool green, is a solid tablet with the main component of 2-hexenal, which is hung in the greenhouse, with high temperature resistance, anti-wilting, reducing falling flowers and fruits, repelling whiteflies and so on. Let's first look at its effect.
High temperature resistant and anti-wilting
Cool green is not used
Use cool green
Reduce falling flowers and fruits
On cherry tomatoes, the flowering rate in unused areas was 43%, and the flowering rate in areas using cool green was 15.9%.
Prevent flashing and reduce deformed fruit
The Chief of The Edgenders
Repels whiteflies
"Hit the whitefly once or twice a year", how did she do it?
Increase yields
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▲Jiyang cucumber, using cool green, measured yield increased by 40%
The greenhouse is hanging cool green, and the tomato production is increased by 3,000 pounds!
▲ Shouguang tomatoes, using cool green, the yield per mu increased by 3,000 jin
After watching so many photos and videos, do you think it is amazing? Cool green, as long as it is hung in the greenhouse, it can have such a good effect?! How does Cool Green do it?
The answer is: 2-Hexenal.
Cool green is a kind of high temperature resistance enhancer, for solid tablets, its main component is 2-hexenoal, plants in the perception of 2-hexenal, will automatically open the leaf stomata, so that transpiration can operate normally, effectively reduce the temperature of the leaf surface and growth point, to avoid roasting leaves burning, falling flowers and fruits. At the same time, photosynthesis can also be carried out normally, nutrients can be supplied normally, various physiological activities of plants can be operated normally, and the fruit setting rate can be guaranteed.
2-Hexenal is a natural substance that is commonly found in plants, and when plant leaves are mechanically damaged, they will synthesize a large amount of 2-hexenal at the wound. However, 2-hexenal is a substance that protects itself when the plant body responds to adverse environments. Hanging cool green, to some extent, is to supplement 2-hexenal, so that plants can cope with high temperature stress and temperature hazards.
At the same time, 2-hexenal has a special odor, which can drive away pests such as whiteflies and thrips, thereby reducing the occurrence of pests and diseases.
Cool green is a patented product produced by Japan's Phytochrome Co., Ltd., which was originally found by a research team at Kobe University in Japan: 2-hexenal can improve the high temperature tolerance of some vegetables, after repeated research and continuous attempts, finally produced such a mature product as "cool green", and won the Japan 2019 Agronochemical Technology Award, which can be said to be the perfect combination of scientific research and industrial development!
In 2020, Lianglu was widely promoted in the greenhouse area of Shandong, China, and has been well received, and the most common sentence we say is "I didn't expect the effect to be so good." After the Qingming Festival, it is time to hang cool green, a small attempt, August will surprise you!