First, select good varieties, timely sowing spring beans should be selected for high stability, high yield, quality, disease resistance, mainly in the early maturing species. For example, the good varieties of red soil hilly land are Yuedong 2.1 and Messi dwarf early yellow that has been purified and rejuvenated. These species have drought tolerance, compact plant type, plant resistance to dwarfism. Early timely sowing can increase the growth period of vegetative growth, and the general temperature is stable above 10°C (from spring to rain), which is the timely early sowing period. Optical Fingerprint Scanner,Programmable Fingerprint Scanner,Biometric Optical Fingerprint Scanner,Wireless Small Optical Fingerprint Scanner Shenzhen Bio Technology Co., Ltd , https://www.huifantech.com
Second, choose to turn autumn beans, to ensure that a spring seedlings often encountered low temperature and rain during the whole seedlings, while the use of autumn bean breeding seed germination rate is high and strong and easy to ensure the whole seedlings, and high maturity and early yield is the key measure to ensure high and stable production.
Third, the fine soil preparation, the application of basal fertilizer deep plowing 15-20cm repeated smashing, from the turtle-shaped ridge ridge, ridge width 1.5-2m, length as required. After the opening of the hole, Mu Shi points soil ash, soil miscellaneous fertilizer 1500kg, or plant ash 300kg, compound fertilizer 25kg, then sowing, spacing 16-18cm, plant spacing 12-14cm, planting 30,000 per hole 1-2 acres.
IV. Early and medium tillage, earth-cultivation, clever application of calcium fertilizer Anti-defeat soybeans are cultivating crops. Slow growth at seedling stage makes it easy to grow weeds. When the height of seedlings is 15-20 cm, cultivating and cultivating soil is performed to promote root development and increase soil to cotyledon nodes. Can prevent lodging, and in the morning when the dew is not dry when the application of lime powder 50-80kg, increase calcium, improve plant resistance, resistance to pests and diseases.
V. Top dressing and promotion of branching, control of dwarfing and increasing podning. Mushi 5 kg, potassium chloride 7.5 kg during the branching period, applied between the rows of wet soil to increase the number of branches and the rate of scarring; Mu with paclobutrazol 0. 75g watered 25kg evenly sprayed on the foliage, can make the plants dwarf, increase the number of knots per plant.
Sixth, the extra-root fertilizer topdressing grain is full after the pod swelling period, the nitrogen fixation ability of the rhizobia is obviously reduced, the nitrogen content of the plant is also reduced, the nutrient is difficult to meet the needs, the top leaves will soon turn yellow, should be timely During the flowering stage, spraying plant phytoalexin and potassium dihydrogen phosphate 1-2 times, it has obvious effect of increasing the flowering and scarring rate by more than 20%.
Seven, prevention and treatment of pests and diseases, promote strong plants, protect the early stage of locusts, borers, mid-bean pods, etc., damage the leaves, spikes, eat lobster sauce, acres with 1000 times dimethoate spray 1-2 times to protect the seedlings Baohuabao Baofeng harvest. Do not forget to add molybdenum fertilizer when spraying nitrogen to soybeans. Right now it is time for the fertilizer to be sprayed on the soybeans. Some farmers are only adding urea when spraying fertilizer, but they do not add molybdenum fertilizer. In fact, molybdenum fertilizer is necessary for the growth and development of soybeans. According to last year's experiments with some households spraying molybdenum, spraying molybdenum fertilizer can promote the formation and growth of soybean nodules and promote the absorption of phosphorus by soybean plants. Distribution and transformation, soybean flowering, scarring and maturity can be advanced, generally increasing production by about 10-20%. Specific spraying methods: First, add 25 kg of water per acre with 10-13 g of ammonium molybdate to make a solution that is sprayed on the foliage of soybean during flowering. The second is to add 30 grams of ammonium phosphate to the same concentration of ammonium molybdate solution in 25-30 kg and spray it evenly.
Soybean three insects two diseases prevention and control measures Ascaris: When the plants appear aphids, individual plants roll leaf, per acre with 0.5% dimethoate powder 1.5-2 kg evenly sprinkled on the top of the bean plants to control or use 80% dichlorvos emulsion 1000 times Liquid control.
Soybean Meal: Newly hatched larvae form a small, thin, white silkworm after 1-3 hours of crawling on the surface of the egg. After a short period of time, the larvae break into the pods and eat beans. It can be controlled with 40% dimethoate 1000 times.
Bridge-building worms: This worm often eats holes and gaps in the leaves, weakening photosynthesis and causing late-maturing soybeans and incomplete grains. Generally severe from July to August, can use 80% trichlorfon 1000 times control.
Downy mildew: The leaves appeared yellow-green spots on the initial stage, and there was a clear gray and white mold layer on the back. The early-stage victim leaves gradually turned yellow-brown and dried off. At the beginning of the disease, 800 times of copper sulfate or 500 times of dexamethasone solution was sprayed 1-2 times for prevention and treatment.
Sclerotinia: Generally occurring during the growth of soybeans to maturity. The sclerotia of the scorpion scorpion is visible in the injured stalk, and finally the plant dies; the scorpion is affected, but it cannot be substantial. Chemical control can be sprayed with 40% carbendazim suspension 1000 times.