How is the hoe? High quality taro high yield planting technology
Taro is one of the common vegetables, and its roots are the main edible parts. Taro is an annual crop, and the most popular cultivars are red bud, white bud, nine-headed betel, and betel nut. Here is the high-quality planting technology for high-quality steamed bread.
Selection of germination
From the disease-free mother plant, the head is large, the stalk is long, the top bud is full, and there is no disease and insect spot. The seedlings with a weight of about 50 grams are used for seedlings, and the amount of seed used is about 150 kilograms. Before sowing of about 20 to 30 days for germination kinds of taro, Shaizhong first 1-2 days, in order to prevent the kinds of taro contaminated surface can be 50% carbendazim WP 500 times soaking dry spare 20 to 30 minutes. Select the sandy soil with leeward sun and convenient drainage as the seedbed. Place the seedlings on the seedbed and cover with 3cm of fine sand. Cover with water after spraying, pay attention to moisturizing and heat preservation. When the bud length is about 3~5cm, it can be used. Planting in the field.
Site preparation
Shantou avoids continuous cropping. It is advisable to choose loam and sandy loam that have not been planted for more than 3 years, with fertile soil, thick soil layer, strong water retention and fertility, and good drainage and irrigation conditions. Before the preparation of the land, 1,500 kilograms of fermented pigs and cattle, 50 kilograms of phosphate fertilizer, 50 kilograms of quicklime powder, and 75 kilograms of compound fertilizer (N:P:K=15:15:15) were applied to the farm. After fertilization, the whole field was ploughed and sorghum. The width of the face is 2 meters (groove), and the depth of the groove is 35 to 40 cm.
Planting at the right time
It is planted from the end of March to the middle of April, and the planting of the seedlings after germination is carried out in two rows. The planting depth is 3 to 5 cm, and the row spacing is 50 cm × 100 cm. With 60% of pre-emergent herbicide acetochlor or metolachlor EC 100 ml 80 ml 50 ~ 60 kg uniformly watered after sowing Qimian herbicidal spraying.
Field management
1. Timely top dressing
The growth period of Shantou is long, the yield is high, and the amount of fertilizer is large. In addition to applying the base fertilizer, it should be topdressed. In the early stage of seedlings, the seedling fertilizer can be picked up once, and the early and middle stages of the growth period of the roots and bulbs are 2 to 3 times. The amount of fertilizer is increased before and after the increase, and the nitrogen, phosphorus and potassium fertilizers should be combined. In the later stage, the topdressing should be controlled to avoid gluttony and late maturity. Late Growth 100 ppm available outer paclobutrazol and 0.2% potassium dihydrogen phosphate root spraying twice to keep promoting root leaf corms expansion.
2. Scientific water
Shantou hi wet and avoid drought. Keep the soil moist during the seedling period, prevent water accumulation in the field; the growth period and bulb growth period, the shallow ditch should be stored in the ditch, the water volume should be just flooded the bottom of the ditch; the dagger should be drained 20 days before the harvest.
3. Soil smear
Generally, the soil is cultivated 2 to 3 times during the growth period of the field, and the soil is the key link to ensure the normal growth of the steamed bread and increase the nutrient accumulation of the bulb. In the second half of May, the first cultivation was carried out to fill the planting hole; in mid-June, the second cultivation was carried out in combination with weeding and loosening; the last cultivation was carried out in late July, and the soil thickness was required to be uniform when cultivating the soil. Before the hoe is sealed, the buds should be cut off in time, and the soil should be re-constructed in combination with fertilization.
Pest Control
The main pests and diseases of Shantou include plague, soft rot, blight, underground pests, and Spodoptera litura.
Rational rotation is adopted in agricultural control, and seedlings are collected from disease-free or disease-free plants, minimizing mechanical damage to the foliage, paying attention to irrigation and drainage, preventing over-drying and over-wetting of the fields, and maintaining ventilation and ventilation to reduce the occurrence of pests and diseases.
For chemical control, Fusarium wilt can be rooted with 12.5% ​​synergistic carbendazim solution 300 times solution; soft rot can be sprayed with 30% copper oxychloride suspension 600 times solution or 68% agricultural streptomycin soluble powder 3000 times liquid spray Spray, spray once every 5 to 7 days for 2 to 3 times; white diarrhea can be sprayed with 50% chlorhexidine WP 1000 times or 80% carbendazim WP 600 times, 7-10 days and then spray a second; 75% disease available chlorothalonil WP 600 times, or 64% of anti-virus alum WP 500 times, every 7 to 10 days, spray 2 to 3 times. The prevention and control of underground pests can be combined with artificial insect catching and drug control. The drug control can be rooted with 48% espresso 800 times liquid solution; èŠ‹è— can be sprayed with 50% phoxim 1500 times liquid; During the incubation period to the 2nd instar larval stage, 10% of the worm solution (10% solution of wormicidin) or 0.8% of the acetaminophen emulsifiable concentrate (1500 times) was sprayed in the evening.
Harvest at the right time
The leaves of the taro are yellow and atrophy, and the base of the petiole has a soft feeling. When it is broken, there is no crisp sound, and the root system can be harvested when it begins to wither. 15 to 20 days before harvesting, drain the bottom water to make the soil dry to improve the quality of steamed bread, convenient for harvesting, storage and transportation.
The management of taro planting is relatively simple, and the environmental requirements are not strict. The planting benefits of vegetable taro are also considerable. The above content is for reference only. If you want to know more about agricultural technology, please pay attention to Hui Nong School!
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