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First, it may be that the soil of that land is too barren and does not have sufficient nutrients, and the dealer is naturally short and does not grow tender heads. Try to fertilize more on which area. Second, it may be that the land is seriously polluted, such as heavy metals exceeding the standard, poisoning the banker, so the banker is short.
It is recommended to do a soil test to prescribe the right medicine.
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The land has a saline or a hollow burial chamber in the ground, which has been polluted, and can only be due to these reasons.
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Endosperm: Provides the energy needed for new plants to germinate. Mainly nutrients such as starch and sucrose.
Not inherited. Embryo: A new individual of a plant.
Have a complete set of genetic material. As long as the embryo grows, it retains all the genetic characteristics of that embryo at the time of germination. It has nothing to do with endosperm, seed coat, etc.
Therefore, no matter what grows the germ of American sweet corn, it is American sweet corn. There's something wrong with the seeds upstairs though. The seeds of sweet corn are related to both male and female parents.
If both parents are American sweet corn, then the seed is American sweet corn. If not, it is a hybrid corn that contains the genes of American sweet corn. Also, I think the above question is just a manifestation of what the landlord said, and the questions you ask should not be limited to this.
If there is anything you don't understand, you can ask me the question you want to know, and I will tell you the answer. I'm working on this professionally. ^
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There is a small piece in the field, what kind of crops are planted is short and does not grow tender heads, what is the reason? Personally, I think this situation may be a problem with the soil, and I think it may be because the soil is not fertile enough.
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This is to find a place where the bottom fertilizer is insufficient. You usually put more fertilizer on it, and slowly he will get the same good as the farmer's family.
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You have a small piece of land in Tianjie, and what crops you grow are just short and not long, that's because of the quality of his soil, and you can replace his soil for a while.
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It may be that this piece of land in your field is not fertile enough, and it may be a saline field. So no matter what you grow, you can't get enough nutrients from the land. Naturally, it doesn't grow big.
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Hello, if there is such a situation, it is considered that there is a problem with the soil in this area, or there is a situation under this land, such as a tomb or other abnormal conditions below.
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The land issue is related to geology, what did you do before understanding this land? Learn about geology, symptomatic crops.
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Soil reasons, adjusted with organic fertilizer, according to this ratio: 300 kg of organic fertilizer per mu, 50 kg of three 15-content compound fertilizer and 50 kg of bio-organic fertilizer.
Residues of herbicides, spraying of foliar fertilizers, severe residues of soil-borne virus diseases, and nothing grows. It can be sprayed with 30% suspension of biological pesticides on sunny days, and it can be treated with prevention and treatment.
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The area is not large, and these two square meters of soil can be replaced. Two square meters on the cover with new soil! If it is a large area, you should find an expert to test the soil content!
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This is because after planting crops for a period of time, the nutrients in the soil are consumed.
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This is because there will always be some parts of a field that are not fertile, so there will be no crops.
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Because there is a problem with the land, it is also possible that the land is not growing crops.
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It may be that the nutritional status of the land is not very good, and it is not suitable for the growth of crops.
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The crops planted in several places that day were not fixed and grown, which may be caused by the poor underground soil quality in some areas, or the serious water permeability and poor water retention.
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In recent days, we have asked more, corn does not grow there are 2 stages, one is not long at the seedling stage, one is not long in the middle and late stages, in fact, there are many reasons for the situation, some friends may want to get a only answer, but did not go to the field to observe, only a fertilizer active ingredient is low and other reasons. The third is the cause of grass damage, drug damage and insect pest. Due to the untimely weeding of the field, the grass is barren and the phenomenon of grass bullying is produced, resulting in the growth of corn is not high.
If the herbicide is sprayed, pesticide damage or pest occurrence is serious, it will also affect the growth and development of corn plants.
One by one, the corn strips are damaged in the early stage of the disease, and the growth is stagnant and the premature death. In the middle of the damage, the plant is significantly dwarfed, the parietal leaves are clustered, the male flowers are not easy to stretch out, if they are extended, the grains are also more thin, and the upper part of the diseased plant is mostly inclined to one side. In the later stage, the dwarf shrinkage was not obvious, and the impact on yield was small.
Everyone said that this phenomenon is relatively common, and many crops in the field are excavated and transported.
Often, the crops at the top of the field are shorter than most of the ones at the back. For example, corn, wheat, soybeans, etc. In fact, it is difficult to explain if you are not a god, and if you have participated in farming, you will know why.
In the seedling stage, the head of the field has to turn around, and under normal circumstances, it will turn around in the "yellow head", and the tillage layer will be shallower than the tillage layer inside. In this way, it will affect the corn seed after the blind beam germinates, and the root system will be deeply rooted, and its ability to absorb water and fertilizer will be weakened. At the same time, if the tillage is shallow, the mineral elements in the soil are not opened, especially seriously.
Diseased corn seedlings have stiff, short, thick leaves and dark green in color. Slow growth retardation. Most of them do not tassel, and those that do, and the ears of corn are also very small, and the grains are shriveled and not full.
Once corn suffers from dwarf disease, the yield will be seriously reduced by 50 percent, or even the harvest will be lost. It is a phenomenon that will appear in each plot, maybe many friends do not understand, why the corn in the field is relatively short, in fact, in the process of corn seedling growth, there will be many factors that lead to the dwarf corn seedling, we analyze the specific reasons from a scientific point of view!
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Fertilization should be carried out, and it may not have enough nutrients to grow shorter.
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Apply some fertilizer appropriately, add some nutrients to the corn, you can also water the corn, and you can also sprinkle some farm fertilizer on the corn.
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These corn seedlings can be watered and fertilized more often, so that after a while they will grow very tall and lush.
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1. Insufficient water and fertilizer: when the organic matter or nitrogen fertilizer in the field is insufficient, the corn is yellow, the growth is slow, and the soil is compacted, the air permeability is not good, or the soil is shallow, the root system is not well rooted, or the soil moisture is too large and stained.
It will lead to insufficient water absorption and water supply capacity of the root system, resulting in yellowing of leaves, slow growth or stagnation of plants, etc.
2. Pesticide damage: closed weeding after corn sowing, if the dosage is large, especially the soil organic matter content is low, and the rain produces drenching soon after the medicine.
When the phenomenon of dissolution, the effect of pesticide damage will occur, and the mild seedling leaves will be yellow, the growth will be slow, or the plant will be deformed.
3. Climatic influence: the suitable temperature for corn growth after emergence is 18-25 degrees, if the sowing is too early, the temperature is too low, or the long-term low temperature and rainy weather.
At the same time, the soil moisture is too high and the oxygen is insufficient, which affects the growth of the root system, and the leaves will turn yellow and not grow.
4. Pests and diseases: corn seedling blight, root rot, heartworm, underground pests, etc., will not only damage the corn root system, but also lead to plant nutrition.
Bad, the leaves are yellow, not long, and in serious cases, they will bite off the stems, etc., causing dead seedlings, or dead plants, resulting in lack of seedlings and broken walls.
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Analysis of the reasons for the lack of corn growth and rescue methods:
First, the herbicide damage does not grow, the corn leaves are yellow, and the dwarf is not long.
Rescue method: apply fast-acting nitrogen fertilizer and water once, foliar spray to relieve pesticide damage of Aiduoshou or Yunda -120 + micro fertilizer (containing zinc) + 1% urea solution, 1 time in 7 days, 2 times. Or Green Wind 95+ love to harvest more, to promote growth with antidote.
2. Corn roughness disease (or dwarf mosaic virus disease) is not long.
Rescue method: uproot the diseased strain to prevent later infection. In addition, in order to avoid the occurrence of viral diseases when replanting maize, the seed weight virus A agent should be coated.
In the 1 leaf and 1 heart stage of corn, 800 1000 times of 20% copper morphoguanidine acetate wettable powder, 500 times of 20% virus A wettable powder plus insecticide spray were used to prevent the onset of disease.
3. Corn seedling wilt (root rot) disease does not grow.
Rescue method: sterilization to promote roots. Irrigate the roots with dichlorfen + love multi-harvesting, 1 time in 7 days, 2 3 times in a row, and spray green wind 95 or nutrients such as farmer or hyphalus plus adjusted foliar fertilizer.
Fourth, corn rot does not grow.
Rescue method: 10% imidacloprid 1000 times + agricultural streptomycin 500 times + zinc fertilizer to the heart, 1 time in 7 days, 2 times in a row. Insecticide, sterilization and recovery of growth.
Fifth, corn silk smut is not long.
Rescue method: uproot the diseased plant and burn it in a centralized manner. Replant corn and mix seeds with Gram Rick Show seed coating. For the smuted powdery mildew plant, if the whole spike of the female spike does not set grains, it can be uprooted and burned, and it can be sprayed with enaconazole, tebuconazole and other sterilization to prevent reinfection, and also treat a variety of leaf diseases in the middle and late stages.
Sixth, the root pest does not grow.
Rescue method: apply 2400 2600 grams of Dida granules, or irrigate the roots with 500 ml of 48% Lesbenzene emulsifiable concentrate per mu. Foliar spray 1% urea solution + Aiduoshou or Yunda 120 + micro fertilizer (containing zinc) 2 times.
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The following aspects can be considered mainly:
1) Is it affected by low temperature chilling injury in spring, forming small old seedlings?
2) Whether there is the residual pesticide effect of the herbicide in the previous crop.
3) Whether the water and fertilizer nutrition ** is sufficient, the plant is weak and the leaf color is yellow.
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If it is not due to drought, then the seeds have failed, or there is a problem with the quality of the seeds.
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Temperature, humidity, light. Look at your seedlings. It seems to be contaminated with herbicides.
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It feels a bit drought, isn't it a lack of water.
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Re: - Six elements of plant growth: sunlight, air, water; Nitrogen, phosphorus, potash fertilizers.
Note: Select the best species, good soil quality, abundant sunshine, good photosynthesis, air circulation, sufficient water 、...weeding, insect pest control, ......; Helium long leaves, potassium long tamarines, phosphorus mosaic (fruit).
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1. Low ground temperature.
This year, the temperature is generally low, and the continuous low temperature has a certain degree of impact on the germination and growth of corn seeds.
2. High humidity.
After sowing, even rainy days, the soil moisture content is too large, and the corn seedlings are in a state of flooding for a long time, which will also cause a situation of not growing.
3. The herbicide damage is not long.
The pesticide damage caused the corn leaves to turn yellow, and the dwarf did not grow. You can apply more water, and then apply some better foliar fertilizer to alleviate the relief.
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If you just pledge the land and build a house, then the value of the land is transferred to the house.
If the bank didn't deposit the house at that time, it seems that the bank can't sell your house directly.
You've got the bank in the hole.
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Take a sample of the soil and go for a test to see what is missing.
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Barren land: A wasteland where no vegetation grows. Described as desolate and barren.
Land not pasture] land where cattle and horses cannot be grazed. Refers to wasteland.
Inch grass does not grow] inch grass: a little grass. Describe the land as barren, not even a little grass grows. He also described the disaster as severe.
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