I. Variety Introduction Mr. Sun Shulin, a farmer breeder in Zhaoyuan, Shandong Province, used the parental P12 to obtain mutant varieties through severe mutations under special conditions, and then successfully developed a series of super-large peanuts. Its characteristics are: strong seedlings, rapid growth, growing trend Wangwang; leaves large and thick, compared with ordinary peanuts, leaves nearly 1 times; stems stout and hard, plant height 40-45 cm; early flowering, 23 days after emergence The beginning of the flower, the large amount of flowers; single plant results 30-50, the results can not afford to concentrate; fruit is very large, fully mature when the average weight of 540 grams, up to 675 grams; per mu 500-600 kg or more, the highest 700-800 kilograms; Fertility period under normal conditions of about 135 days; good quality, extremely fragrant, palatability can be comparable with chestnuts, walnuts, and sweetness than chestnuts, walnuts, eating up addiction, eat but also want to eat Bai Ren weighing 160.87-187.5 grams, the largest 235-250 grams, than the current domestic promotion of large peanut varieties more than 1 times, is generally 3-4 times the peanut! Such a large variety of peanuts, not to mention in the country, is rare in the world! Can challenge the Guinness Book of Records! As you can see from the color photos, "regular peanut" is much smaller than "super peanut"! Intimate things are all very surprised!
Second, the cultivation techniques
The growth of super-large peanuts is relatively large and the requirements are relatively high. If it can meet its growth conditions to the maximum extent, it will definitely grow higher yields. I don't know if I don't know, I will love it!
1. Field drainage and irrigation: It mainly grasps the principles of drought irrigation and flood drainage. Rainy areas or rainy seasons, continuous rainfall for more than ten days, to ensure no water accumulation in the fields. Soil stagnation cannot grow peanuts. From the first flowering period to the full flowering period of about one month, we must ensure that the water supply is sufficient to significantly increase the fruit setting rate. In the late growth period of about one month, when the dry period exceeds 15 days, the weather forecast is still no rain in the near future and it should be watered immediately. These two pairs are crucial to achieving high yields.
2, fertilizer use: (1) formula fertilization. According to the principle of peanut fertilizer, formula fertilization: for every 250 kilograms of peanuts produced, 15 kilograms of pure nitrogen, 6 kilograms of pure phosphorus, and 12 kilograms of pure potassium are required. Usually, farmers are not willing to invest, fertilizer is too blind, and the phenomenon of partial application is serious. The problem is that fertilization is not as good as possible, but nitrogen, phosphorus, potassium, and trace elements must be combined with fertilization in order to achieve higher yields with smaller investment. In the absence of organic fertilizer, the following basal formula can be selected: 100 kg of peanut-specific compound fertilizer containing 25% nitrogen, phosphorus, and potassium. Can also be self-provisioned: Peanuts are more nitrogen-needed crops, because their rhizobia nitrogen fixation capacity of about 3/4, fertilization should be reduced nitrogen fertilizer. Such as 500 kg of peanut per mu need: nitrogen 30 kg 4 = 7.5 kg (equivalent to 16.5 kg urea), phosphorus 12 kg = 100 kg of superphosphate (or 25 kg of diammonium phosphate), potassium 24 kg = potassium sulfate compound fertilizer 48 kg.
(2) Fertilization method. 1 Divide the amount of basal fertilizer in half, half in the furrow at 5-10 cm on both sides of the seeding furrow, and half in the seedling furrow in the eyebrows between the two points of peanuts. The application of fertilizer, especially urea, is maximized without affecting seedling emergence. Super peanuts are very sensitive to drugs and chemical fertilizers. Direct contact with local drugs and fertilizers with high or high concentrations can cause harm. The severe ones are 50-80% seedlings, and the difference in seedling strength is very different. 2 Topdressing 10-15 kg of urea at full flowering stage will significantly increase production. 3 Use 1% urea and 400-fold potassium dihydrogen phosphate solution during the initial flowering or full flowering period, top-dressing leaves, 15 days 1 time, a total of 2-3 times, can promote large and neat, full, and increase production 20- 30%.
3, suitable for late sowing: generally sown in May-June. First of all, although the results of early sowing can be early and large, but there are many rotten fruits, the results of early knots are bigger, but they are easy to rot. Second, the early spring sowing temperature is low, easy to rotten species; and late sowing results are neat, rotten fruit less, as long as the growth period can reach maturity, but full fruit expansion to avoid high temperatures and rain. The super large peanut seeds are very large, and due to the quality of the seeds, there is a lack of sensation. On the one hand, the seeds will become soft and rotten. On the other hand, the timing of the seeds being threatened by insects will increase accordingly, resulting in lack of seedlings. Therefore, sowing must be sufficient. According to experiments, seed soaking with fresh water is best. Use Vicone 1000 times liquid dressing, or use 3721 strong rooting fluid 1000-1500 times slow soak 0.5-2 hours (or 100-200 times liquid quick soak 15-20 seconds), remove the dry water, immediately enough Sowing, the effect is also very good, but also improve the resistance. Conditionally, it is also necessary to apply net granules in the sowing ditch to drive off the underground pests.
4. Field management: The control of pests and weeds is the same as other peanuts. If a large spot disease starts at the end of July, it must be treated with a potent dose of the drug, which is also known as blue rust, and can be eradicated only once at the beginning of the disease. In the later period, carbendazim is used to control leaf spot, so as to protect the leaves from premature senescence, and the functional period of the leaves extends for two days, and the mu yield can be increased by several tens of kilograms.
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