What medicine will not grow in agriculture in the coming year?

Hello, the impact on the growth of crops, crop damage, mainly refers to chemical herbicides. Different herbicides, use concentration, interval, etc., have different degrees of impact on crops, and the degree of harm is also different, ranging from a yield reduction of 20%-30% to 50%-60%, and even no yield is more serious, so pesticides should be used reasonably.

Dichloroquinolic acid herbicide has an accumulation effect in the soil, may produce residual accumulation of pesticide damage to the later crop, soybean planting should be avoided within 8 months of medication, sugar beet and tobacco can not be planted next year, it takes more than 2 years to plant, according to the test, within 300 days of using the drug, except rice, can not plant any crops, within 12 months, can not plant eggplant, carrot, celery, coriander and other umbrella crops, nor can you use the rice field water of dichloroquinoline acid to irrigate the above crops.

Pust is a long-acting herbicide, 70 grams of active ingredient per hectare of Pusit, 4 months after the application can be planted wheat, peas, alfalfa, 9 months can be planted barley, tobacco, 18 months can be planted corn, sorghum, potatoes, 40 months after the beet, even 10 years of Pusit, it is not easy to plant soybeans.

Besulfuron lasts for a long time in the soil, and can not be planted with sugar beets, rice, potatoes, melons and vegetables after stubble, and sorghum can only be planted every 3 years, and vegetables and beets can be planted every 5 years.

In short, the plots with Pust and Dousulfuron can only be planted with soybeans and wheat in the second year, and cannot be planted with cabbage, rape, potatoes, cucumbers, eggplants, peppers, coriander, sugar beets, watermelons, sorghum and other crops in the third year.

Acetochlor can cause soybean pesticide damage - D butyl ester can cause corn seedling damage. Due to the close kinship between crops and weeds, the dosage is too large, which is easy to hurt the current crop or the subsequent crop, and the large amount of pesticide residue will cause pesticide damage to the crop.

If the dosage per mu of atlalu is more than 130 grams, rice, soybeans, wheat, sugar beet, vegetables, etc. can not be planted in the second year, if the dosage exceeds 4 kg per hectare, it will cause pesticide damage to broad-leaved crops such as soybeans in the next crop, so the dosage can not be too large.

With 560-1400 grams of active ingredient per hectare, 9 months after the application of rice, corn, pepper, tobacco and other crops can be planted, 10 months after all crops can be planted, but the concentration is large, that is, more than 1 kg hectares, the next crop corn and other crops produce pesticide damage, so the application concentration can not be too large. The appropriate dosage of Guangfen is mixed with other drugs, and has no effect on the stubble.

Broadgrass degrades slowly in acidic soil and fast in alkaline soil, and can only be planted with sugar beet, rape and other crops after the application of the drug.

Hope it helps.

Paraquat. Or glyphosate.

It can be done. 1. Paraquat is a contact killer herbicide.

All green parts of the plant will wither after being beaten, but the roots cannot be killed.

2. Glyphosate is a systemic incidising (commonly known as rooticidal) herbicide, after spraying, the liquid will be absorbed by the leaves of the plant and will be transmitted to the roots, and the roots will kill the plants.

3. Chronic pesticide damage does not appear soon after pesticide application, and the growth is slow, dwarfing is delayed, flower and fruit fall increases, low yield, and poor quality after a long time. In addition, the front stubble can cause pesticide damage to the next crop. Causes of drug damage.

The physicochemical properties of the river are most closely related to the pesticide damage of plants.

4. In general, water-soluble drugs are prone to drug damage. Some oils can block the stomata of crops and cause pesticide damage after use; Improper mixing of pesticides can cause pesticide damage; medicine'the ability of plants to withstand pesticide damage; Repeated spraying or continuous spraying, resulting in pesticide damage.

To prevent and mitigate herbicide residues, Anfago can be applied retroactively.

Longan grows over Chong Changcheng:

Fertilization: Flower fertilizer:

For the first time, from late February to early March, when the flower spike grows to 10-12 cm, according to the plant yield of 25 kg of virtual stall hanging fruit, each plant is applied with kilograms of potassium sulfate and kilograms of dry cake fertilizer. If it is a strong tree, there is no lack of fertilizer, this fertilizer can not be applied: the second time is applied before the flowering period when the pure flower spike has been differentiated, most of the flower buds have been full, and the flower spike will no longer appear "rushing" danger (the usual year is late March to early April), and most of the organic fertilizer is applied at this period.

According to the plant yield of 25 kg, each plant is applied with 5 kg of cake fertilizer or chicken manure, 1 kg of potassium sulfate, 1 kg of calcium and phosphorus fertilizer, and 1 kg of urea.

Strong fruit fertilizer: From mid-May to early June, the first physiological fruit drop ends, and the second physiological fruit drop begins before the start (i.e., when the small fruit soybean is the size) is fertilized. This fertilizer depends on whether there is fruit hanging or not, and the number of hanging fruits.

According to the plant yield of 25 kg, each plant is applied 1 kg of compound fertilizer, 1 kg of potassium sulfate, 1 kg of urea, and 1 kg of calcium and phosphorus fertilizer.

Extra-root topdressing: In the 40 days from early February to early March, complex nucleotides plus potassium dihydrogen phosphate and boron are usually sprayed. From May to June, spray foliar fertilizer every 15-20 days, spray with potassium dihydrogen phosphate plus magnesium sulfate and zinc sulfate, mixed with water.

Drainage and irrigation: If there is too much rain during the fruit development period, it is necessary to pay attention to the timely removal of stagnant water, and in case of drought, it is necessary to irrigate and moisturize in time to ensure the normal development of the fruit.

Flower thinning and fruit thinning: Generally, the flower spike development is completed in mid-March and the flower is thinned before flowering; In late May to early June, when the small fruits develop to the size of soybeans, the fruits are thinned. The specific methods and requirements are:

Remove diseased spikes, weak spikes and poorly growing flower spikes, retain robust flower spikes, reduce unnecessary nutrient consumption, and improve the high fruit setting rate.

The top of the canopy is more sparse, and the middle and lower parts are less sparse to prevent too much fruit hanging on the top of the canopy and reaching the top, causing direct sunlight to hit the trunk in summer and weakening the tree's momentum;

Go to the outside and stay inside, go to the main and stay the secondary, fold and stay. That is, the flowers and fruit spikes on the periphery of the canopy are more sparse, and more flowers and fruits around the canopy are retained, and when there are two or more spikes on the same base branch, the main flower spikes are thinned out, and the secondary flower spikes are left, or the upper flower spikes are sparsely removed, and the lower short and strong spikes are retained.

Fruit thinning should thin the fruit ears with scarce fruit sets, and retain the fruit ears with many and compact fruit sets, but if there are too many fruit sets in a single panicle, some side ears should be appropriately thinned and the amount of fruit hanging in a single spike should be appropriately reduced.