Last fall, on the day we planed to harvest sweet potatoes, we came to a lot of onlookers because they wanted to see how the output of the sweet potato was after its cultivation. Just a few piles, crowds of people will be amazed: "The sweet potatoes grow well, big, neat, and more!"
This is the sweet potato experiment we conducted in the past two years. It is aimed at the biological characteristics of sweet potato, light cold, fear of leeches, drought tolerance, love of roots, and longevity. It solves the problem of no growth during the growth period. The problem of potato tuber, and the effect of increasing production is significant. The test methods and results are now described as follows:
First, the test method
1. Hey heap. In the early spring, after the soil is turned on, it can be completed in late April. If the ground is poured after the ground is poured, it can be picked up several days before planting to protect the earthworms. The bottom of the pile is about 60 cm in diameter, about 25 cm in height, and 10 cm apart. Add appropriate amount of farmyard manure and sweet potato fertilizer at the same time as piling up. Generally about 1330 can be piled up per mu.
2. Planting. In the Tangshan area in early May, other areas can determine the planting time according to the time of the dumplings. Choose no black roots, more robust yam pods, each planting 3 trees (in a triangle). If the lyrical condition is poor, plant a pot of water to ensure full seedlings.
3. Loose soil weeding. The weeding is done once every half month, except for the general year, except for 3 times, to ensure that there is no weed growth under the potato.
4. Insert rack. When the yam grows to 60-80 cm, it begins to insert. With 2 meters long bamboo poles, each pile of three, inserted in a triangle, tied tightly at a position about 33 centimeters from the axillary top. After the shelf is inserted, the yam pods will be erected and the yam will be picked up. The yam will be smashed with a damp corn husk to allow it to grow upward. Always check that the growth of yam is bundled and smashed according to the growing situation until it reaches the top of the pole.
Second, the test results Last year, we engaged in six piles on the slopes of thin hills. We chose variety 138. After the autumn we sliced ​​sweet potatoes and weighed them. The average shelf weight was 3 kilograms per kilogram and the average weight was 1.4 kilograms per pile. This year we planted sweet potatoes 33 Heap, variety is still selected 138, because it is tested in the pear garden, affected by shade, heap production is slightly worse than last year, the average sweet potato stack 2 kg, does not put on an average of 0.65 kg of sweet potato, increase production effect is more significant .
Third, increase production analysis
1. Increase lighting and increase production. After the sweet potato pods are put on shelves, they are airy and light-transmitting. They don't take root to consume nutrients, increase the area of ​​light, and prevent madness by snoring.
2. Reduce damage. After the sweet potato is put on the shelf, it does not need to move the yam again, which reduces the damage to the root and increases the growth time accordingly, laying the foundation for the high yield of sweet potato.
Note: Each finger is coarse New bamboo pole calculated according to 0.2 yuan, generally available 4 to 5 years. (Qianxi County Bureau of Agricultural Animal Husbandry and Fisheries 064300)
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