For wheat fields with extremely severe freezing damage, many farmers have already raised the issue that they should not be destroyed. In order to reduce losses, it is necessary to be careful when destroying the seedlings. In general, if the rate of death of the wheat exceeds 50%, the seed should be destroyed. According to the agricultural season and the situation of this year's wheat, the farmers should not start with the current wheat. One is to wait and see green, and the other is to carefully investigate the rate of death, to keep as much as possible to keep, and take effective measures to promote the transformation of the seedlings, the formation of effective defects, increase the number of spikes, increase grain weight. Third, if it is true that the current rate of death is high, first make preparations for changing the technology and materials. In particular, planning in the future is based on local conditions, and information is the most important. If the market, market, and technology cannot be mastered correctly, it is to change the crop and harvest. Perhaps the end result is not ideal. According to the opinions of experts in various fields, they also communicated with the farmers and felt that there were several proposals for replanting the proposals.
The premise of replanting will not affect the planting of winter wheat this fall. Due to the instability of the agricultural product market, prices of some products are difficult to predict. Replanting should also consider seeds, fertility, experience, farming time, and locality.
First, change to spring corn There are two options. One is a kind of ordinary corn. The seeds are selected for late-maturing varieties. There is no problem with the source of seeds. They were planted in early April and harvested in September. Do not delay breeding wheat. Another is sweet corn, planted in late March, or planted on March 25. Harvested around July 10. The rest of the time before planting mai seeds such as fennel, canola, and parsley. The current market price of corn is still relatively high, and it is also good for small dishes to sell. The particular disadvantage of spring corn is that pests and diseases are heavier than summer corn, especially to prevent viral diseases.
Corn virus disease prevention and control methods: First, early in early April species, so that the diseased period of 5 leaves of corn and the late May to early June of the stinky fly sturgeon transfer period. The second is to sow with 1.5% of disease and disease No. 2 100 ml + 500 ml of water, mixed with 50 kg of seeds, if it is coated seeds, will be planted before planting Ling 2 on the sowing, then sowing. The third is that after corn emergence, 10% imidacloprid 1500 times +1.5% Phytopathogen No. 2 800 ~ 1000 times solution (or other virucidal agents) + brassinolide 6000 times, 7 days apart, used 2 times. The fourth is to find the early virus plants, that is, the yellow leaves of the plant leaves, with 1% urea + brassinolide 6000 times +5% ningnanmycin 500 times + zinc fertilizer, interval 5 days, used 3 times. Fifth, when the symptoms of the diseased strain are already evident, remove it immediately and destroy it so as not to become a source of poison.
Second, to change the kind of beans First, spring soybeans, seeds can be used with summer soybean varieties. It was planted in early April and harvested in September. The second is a kind of bean, with farm varieties. There is no problem with the seed source. In the previous year, the price of oil was OK. Planting spring soybean must prevent and control diseases and insects, because some of the pests in the spring soybean damage is significantly heavier than summer soybean. The first is the prevention of viral diseases. Last year, due to the harm of virus diseases, it was common and caused blasphemy. The spread of viral diseases was locusts and whiteflies. Generally, drought in spring is conducive to the reproduction of aphids and whiteflies. The month is the peak of crop virus disease, so spring soybean must prevent virus disease. The method is: timely kill insects, such as imidacloprid, acetamiprid, acephamide, high-efficiency cyanide spray. 10-15 days after the seedling period can be sprayed with virus prevention agents. Formula: 1% urea + brassin 6000 times + 5% ningnanmycin 500 times + zinc fertilizer or 500 times Antai, or 0.5% amino oligosaccharide 500 times + virus killer. Use 2 or 3 times.
The second is to prevent the blackfly fly. In 2009, the occurrence of blackfly was common, and some soybeans were seriously endangered. The larvae (little larvae) of the stalked black fly larvae drilled pods, petioles, and veins to form a red tunnel, and the plant tissue was destroyed. At the seedling stage, death was caused, and flowers, leaves, and pods fell off prematurely and the weight of one thousand grains decreased. Mungbeans, red beans, green soybeans, etc., can also occur. According to research, spring soybeans are heavier than summer soybeans. The mid-to-late June is the emergence period of the adult Drosophila melanogaster. It should be noted whether there are black flycatchers in the field. As happened in the previous year, insecticides such as imidacloprid, acetamiprid, acephate, and high-efficiency cyanide should be sprayed in time.
Third, replanting Spring Valley with Xiagu varieties as a species. Planted in mid-to-late April and harvested in September. Guzi experts reminded everyone that because bird damage is only suitable for large-scale planting, if the whole area is changed to a large area, we can consider the different species. For example, when the species of flowers is eaten by birds, it is very helpless. At present, there are bird-feeding agents on the market. However, according to field use in the previous year, the duration of bird movement was only 3 to 4 days, and the effect was not satisfactory.
Fourth, to change the spring oil sunflower land is mostly in the upper fertility, planting oil sunflower is conducive to high yield. April species, July harvest, you can also plant a short crop. However, the spring oil sunflower planting should prevent drifting phytotoxicity caused by chemical weeding in wheat fields from the beginning of March to April. Leaves of the dicotyledon oil sunflower, tomato, cucumber, watermelon, beans, and fruit trees have leaf shrinkage, chicken claws, and severe top growth. Stopping, as in the spring of 2008, there were no growing points in many places. Is it possible to prevent it in advance? You can use the precautionary measures “You didn’t fight me first, then you hit me againâ€. Before the application of the herbicide, the dicotyledonous crops were sprayed 6000 times more than a lovage or brassinolide (1000 times as large as "Yunda-120"). After the wheat field used the herbicide, you immediately sprayed it 6000 times again. Intake or brassin ("1000-120" 1000 times). In this way, drug harm can be avoided and phytotoxicity can be released in time. In addition to controlling the second generation of cotton bollworm, in mid and late spawning period in June, pay attention to the amount of eggs of the bollworm on the flower disk. If there are more, spray the medicine immediately. The medicine may be selected from the group consisting of ciclosporidium, diflubenzuron and other insecticides. The bollworm virus may also be used. Formulation ring industry No. 1. In addition, profenofos, methyl-dimensional salts and other chemical agents.
5. Vegetables can be planted in open field vegetables, but sales and returns must be considered. Because the current nursery can not keep up with the cold season vegetable season, and solanaceous fruit production in open field will encounter the high temperature season from June to July, and the technology required to produce good products is high. The wheat variety of vegetables also has the advantage that there are few kinds of bacteria in the vegetables in the soil. Therefore, there is a farmer who proposes grafting of eggplant. He refers to measures to control verticillium wilt. I told him he had no grafting and could be planted directly. In addition, farmers raised pea cultivars, spring peas were sown in February and April, and harvested from June to August. Fresh food was favored by most people. Dried beans were also good for food processing and could also be considered for planting.
Sixth, crops that should not be considered Some people proposed to change the type of barley, but experts believe that the time is too late, the farmers said to plant, but must begin in January to deal with the seeds through the vernalization. In addition, since the spring wheat in our province is only planted in small parts of the dam, no seeds can be sown.
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