Today is the summer solstice season, and it is the middle of the summer season of the year; this period, the temperature is higher, the rain is abundant, the rain is frequent, and it is very suitable for the vigorous growth of field crops; because after the summer solstice, the field crops grow rapidly and grow vigorously under the conditions of rain infiltration and higher temperature; the old rural saying "the summer solstice does not enter the field on three days, and it is another time to look at the field;" It is said that the field crops, after the summer solstice, grow one day at a time, if the summer solstice does not go to the field for three consecutive days, after three days, You will find that the growth of field crops is impressive.
In fact, after the summer solstice, the temperature is suitable and the soil is moist not only suitable for crops to thrive; moreover, this climatic environment and soil conditions are also very suitable for the vigorous growth of weeds in the field; many field weeds, after the summer solstice, spring up from the soil like mushrooms, and within a few days, they will grow all over the ridge; because many weed seeds are suitable for taking root and sprouting at higher temperatures, and then growing freely in the fields with moist and nutrient-rich soil; especially vine-type weeds, growing vigorously, They not only compete for the nutrients of the soil around the roots of field crops; moreover, they also suppress the growth of field crops, squeeze out the living space of crops, wrap around the stems and leaves of the bound crops, block the light of crop stems and leaves, and reduce the light energy conversion capacity of crops; and even extend vine tissue into the stems or leaf flesh of crops to absorb nutrients, resulting in poor growth of field crops, and even wilt due to lack of nutrition or photosynthetic deficiency.
It can be seen that the field weeds after the summer solstice must be removed in time, once the madness is greatly harmful; the old rural saying also says: "The summer solstice does not hoe the root edge grass, just like raising a poisonous snake bite;" means that during the summer solstice, the field crops grow rapidly under high temperature and high humidity conditions, and the same conditions are also conducive to the vigorous growth of weeds, if at this stage can not be timely hoe off the weeds in the soil around the root system of the crop, weeds in addition to competing for crop nutrients, will also suppress the growth of crops, block the light of crops, just like the poisonous snakes raised around the root system of crops, It is a major hidden danger on the road to crop harvest; therefore, after the summer solstice, it is necessary to remove the weeds in the field in time, especially the vine-wound weeds, which must be seen and removed as soon as possible; otherwise, once it grows wildly, it is not only difficult to clean up, but also increases the difficulty of cleaning, such as the following five kinds of vine-entangled weeds:
Lara straw
The scientific name of Lala seedling is called lily grass, which is a climbing weed of the vine of the genus Sycamore; lala vine and petiole have barb hooks, and the leaves are jagged around the leaves; if you are accidentally scratched by the stem and leaf of the grass, there will be a more obvious scratch appearing, and can penetrate deep into the cortex, the pain is obvious, so it is named Lala seedling; Lala seedling is more common in the countryside, the vitality is vigorous and tenacious, regardless of soil, like semi-shade environment, like fertile soil, drought and cold tolerance, it is common to grow in the wilderness of the barren slope, under the ditch forest, Or plough the field and around the field crops; Lala seedlings grow rapidly, the reproductive capacity and regeneration ability are also very strong, no need to manage, Lala seedlings can spread out from a single plant a large area; Lala seedlings have a particularly developed root system, deep roots and can grow horizontally around the stem base, and the roots can also drill out of the soil to form grass seedlings; if there are Lala seedlings around the farmland, the root system of lala seedlings will extend to the farmland and spread everywhere to survive; therefore, once the farmland breeds Lala seedlings, it is difficult to clean up at one time.
If lala seedling grows in the field, it will climb along the crop stalk and wrap around the crop stalk until it grows to the top of the crop and then spread around; the head of the lala seedling will pull the top growth point of the crop when looking for support, causing the crop growth point to bend; lala seedling climbs to the top of the crop, begins to stretch the stem and leaves, the leaves of the lala seedling are dense, can cover all the stems and leaves of the crop, affecting the light energy conversion of the crop; the toughness of the lala vine is very strong, it is difficult to tear it off with force, and it must be cut with tools Moreover, the lala seedling is wrapped around the stem or leaf of the crop, even if the vine of the lala seedling is cut, it is difficult to easily untangle the entangled vine; therefore, the lala seedling is very difficult in the cleaning process, and if you are not careful, not only will the skin be scratched by the barb hook of the stem and leaf of the lala seedling, but also the vine body wrapped around the stem and leaf of the crop needs to be extremely careful and takes a long time to clean up, and if you are not careful, it will also damage the stem and leaf of the crop.
It can be seen that lala seedlings must be easily removed when they have just grown vines; because lala seedlings have just emerged, the root system has not spread, at this time, uprooting can prevent lala seedlings from regenerating; if lala seedlings have grown, such as a large piece of lala seedlings growing in the corn field, it is first necessary to use tools to cut off the root vines of lala seedlings, and then cut off the upper vines in sections, and finally loosen the vines wrapped around the stems and leaves, and all the vines that have been cleaned up must be taken out of the field for incineration; for the lala seedlings around the farmland Dichloroxanthoxalamine, dimethyltetrachloramine or mepyrosulfuron, as well as glyphosate can be sprayed cleared in the prescribed dose.
dodder
It is also a field weed that grows after the summer solstice, and this grass is more domineering, if it is not removed in time, the scourge ability is stronger; the silkworm is also called the no-niang vine or the rootless vine, because its stem is thin and leafless, the whole plant is hairless, and it survives by absorbing the nutrients of the host, so the silkworm seed is a typical predatory parasitic weed; the silkworm seed is a tenacious vitality, multiplying by seeds and vines, as long as a small section of the vine body remaining in the field, the silk seed can still find the host to expand the breeding area; the silk seed is a one-year parasitic vine entanglement plant of the spiral flower family. It is more common in rural fields, often parasitizing in pepper, corn, tea garden, and soybean fields, especially like to parasitize between soybean plants; when the soy bean ridge grows between the silk seeds, it relies on the vine head to look around for the host, and then sucks the host's stem and leaf tissue like a suction cup, and wraps the vine body around the host's whole body; the vine body of the silkworm can break the epidermis of the soybean stem, and the vine body is combined with the soybean stem tissue, and the silk seed will grow nutrient-absorbing organs at the contact with the soybean stem. Like tentacles, they penetrate into the vascular bundle of soybeans and survive by absorbing the nutrients in the vascular bundle of soybeans.
The reproductive ability of the silk seed is extremely strong, as long as a plant of silk seeds breeds in the bean field, if there is no intervention, under the conditions of high temperature and high humidity on the summer solstice, the silk seeds will spread throughout the bean field within a month, and each plant of silk seeds can breed up to 1 million seeds; the soybeans parasitized by the silk seeds, the stems are wrapped around the vine rings, not only the nutrients are completely taken away by the silk seeds, and the traces of the silk seeds are getting deeper and deeper, until the skin of the soybean stalks cannot transmit nutrients and wither; therefore, the silk seeds are called field evil grass by farmers, if not treated in time, The consequences are endless; as we know, there is no good way to completely eradicate the silkworm seeds, even the best herbicides can not do anything about it; if after the summer solstice, it is found that there are silkworm seeds emerging in the field, it is the best time to remove them at a smaller stage; because the silkworm vines are extremely easy to break, so when cleaning the silk seeds, avoid the vines leaving the field; after we find the silk seeds in the field, find a clean plastic sheet to spread between the ridges, and then use a tool to cut the silk vines, and the vines fall on the laid plastic cloth. It is then taken out of the field for incineration or other harmless treatment.
Radix
Radix is also a summer farmland often breeding in the field grass, it is also a vine climbing winding plant, especially like to breed in the corn field, vines winding corn stems and leaves, leaves blocking the light, hindering the growth of corn, reducing corn yield; radix is a perennial grass vine plant, commonly known as sheep milk, or he he scoop; radish is more common in the countryside, the growth environment requirements are not high, like semi-dry and semi-wet soil, like sufficient light, drought tolerance, drought tolerance, flood resistance, low temperature; commonly it grows in barren mountain fields, fieldside woodlands, ditch roads, In the bushes.
The fruit of the radish is like a miniature version of the gourd, so there are places to call it a he scoop; the seeds of the radish are superimposed on the scoop, the seeds are flat and oval, and the top has white juan seed hairs; when the autumn fruit is ripe, the scoop body splits and the seeds are exposed, blown by the wind, and the seed hairs can be scattered around with the seeds; when the seeds fall into the field, as long as the temperature is suitable, they can take root and sprout and grow vines, climbing on the stems of the field crops; the radish is easier to clean than the lala seedlings and the silk seeds, generally around the summer solstice, see the fields have radha growing, If the radix is not found in time and the vine is already wrapped around the field crop, the stem base can be found along the vine, pulled from the stem base, and then the vine body is taken out of the field along with the fruit.
morning glory
Morning glory flowers are colorful, flower types like trumpets, there are places called trumpet flowers, or bowl flowers, has a very high ornamental value; but morning glory in the field, will compete for soil nutrients, climbing and winding on the crop stalks, blocking crop light, will also affect crop growth and reduce yield; morning glory is very adaptable, that is, resistant to shade and light, warm and cool, can withstand heat and heat but not frost and low temperature; morning glory can grow under climatic conditions above 10 degrees, especially like in spring and summer wheat fields or summer and autumn corn, Sesame seeds grow in the field; if after the summer solstice, see the field grow morning glory seedlings, uprooting can be; or with the cultivation of the eradication can also be; if the morning glory has been wrapped around the crop, just pull off its root system, after a day the morning glory vine will wither; if the field morning glory is more and constantly breeding, under the premise of ensuring the absolute safety of the crop, you can use glyphosate to spray according to the instructions.
Wild melon
Although wild melon is a Chinese herbal medicine that can be blindly encountered, but wild melons grow in the field, not only compete with field crops for nutrition, and wild melons are also a kind of tangled vines and weeds, climbing ability is particularly strong, wild melons will also affect the normal growth of field crops, but also reduce crop quality and yield; wild melons have strong adaptability, especially like to take root in fertile farmland; therefore, wild melons grow more commonly in the field; once wild melon seeds fall into the field, the next year at a suitable temperature, Wild melons will take root and sprout and become the main weeds in the field; in general, wild melons will grow seedlings before the summer solstice, start climbing vines after the summer solstice, grow stems and leaves this summer, and only begin to flower and bear fruit after autumn; before and after the summer solstice, if wild melons are grown in the field, they can be uprooted and can also be uprooted; if there are more wild melons in the field, you can use chimney sulfound to apply the stem base of the melon, or use the special herbicide of the melon to spray safely according to the instructions for use; however, General herbicides can only eliminate the stems and leaves of the aboveground part of the melon, can not achieve the purpose of eradication; if you want to eradicate, only by taking a deep digging method to remove all the root hairs from the field, the next year can be less wild melon.
overview
At the summer solstice, high temperatures are frequent, rain is abundant, and the soil is moist, which is conducive to the vigorous growth of field crops; however, the climatic conditions and soil environment of high temperature and high humidity are also conducive to the growth of weeds in the field; after the summer solstice, weeds grow rapidly, especially the vine-entangled weeds, such as Lala seedlings, silk seeds, radish, bowl flowers, and wild melons; in addition to competing for crop nutrients, they will also wind the stems and leaves of crops, suppress crop growth, and pose a serious threat to crop survival; therefore, when the summer solstice arrives, it is necessary to pay attention to the situation of weeds in the field in time If there is weed breeding and spreading, especially the vine entanglement weed, it must be treated in time.
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