Sweet potato interplanting waxy corn, one mu for two mu
Release time:
2024-01-02
Sweet potato interplanting waxy corn, is one of the current high efficiency planting mode. In recent years, through the continuous practice and innovation of growers, a complete set of planting technology has been explored. Sweet potato is a fresh red heart variety, and corn is grown as waxy corn with good taste. In this way, the economic benefits per mu are significantly improved. The interplanting is mainly to make use of the different characteristics of the height and height of the two crops, the matching of height and height, the rational use of light and heat resources, and the production of two products in one place according to the growth characteristics of the non-overlapping yield formation period, so as to improve the benefit per mu and achieve the purpose of increasing income. Specific practices are:
1. selection of products with high added value
Everyone knows that the same is waxy corn or red heart fresh potato, and the price of varieties with good taste and quality varies several times. Therefore, when growers see this point, they should not only choose early-maturing, high-yield and disease-resistant varieties, but also choose excellent varieties with good taste, good quality, popular with consumers and high commodity value.
At present, sweet potato selection Pushu 32 (watermelon red), Liuao red sweet potato, Yanshu 25, Xinxiang, Longshu No. 9 and other good varieties with high sweetness.
Waxy corn varieties jingke waxy 2000, north sweet waxy 1, wan waxy 2018 and so on. Generally in 85~90 days can mature fine varieties.
2. loose and fertilized soil
Corn is a deep root crop, and sweet potato likes loose soil with good air permeability. Make its products high yield and high quality, loose and fertile soil is the foundation. Creating a suitable soil environment for root growth of sweet potato and maize is the primary measure for high yield and quality. Therefore, the planting land will be deeply ploughed and frozen in winter to a depth of 25~30 ㎝ or more. And help false ridge, spring shallow tillage fine rake moisture. This operation achieves the purpose of curing the soil and improving the soil's ability to retain water and fertilizer. In addition, it can also eliminate some eggs and disease sporophytes, and reduce the occurrence of diseases and insect pests of sweet potato and corn. Organic fertilizer was applied when ploughing years ago, and chemical fertilizer was applied 25 days before planting years later to dissolve with the soil. The amount of fertilizer applied is 2~3 square meters of organic fertilizer, about 40.00kg square meters of cake fertilizer and 40.00kg square meters of three-element compound fertilizer.
3. Planting Patterns and Precautions
One planting belt is 210 ㎝, two rows of sweet potatoes and two rows of corn. The width of the large row of corn is 150 ㎝, the width of the small row is 60 ㎝, and the plant spacing is 30 ㎝. About 2100 plants per mu. Two rows of sweet potatoes are planted in the big line of 150 ㎝, and the sweet potatoes are planted alternately with a row spacing of 50 ㎝. The two sides of the sweet potato are 50 ㎝ away from the corn, and the plant spacing is 35 ㎝, about 1800 plants per mu. After corn harvest, a row of late sweet potatoes was planted in the row with a plant spacing of about 30cm.
Corn is planted with plastic film. After the frost is broken in early April, the ridge is made according to the above mode and specifications. The method of planting before plastic film is adopted. Each hole has 2-3 seeds with a depth of 3-5cm. Note that waxy corn should be isolated from the reproduction of regular corn to prevent mutual pollination and mixing, affecting the taste and commodity value of corn.
Sweet potato planting time is in the middle of April, using open field planting method, pouring enough water after planting, do not cover the soil at that time, stop for half a day before covering the soil. Try to use virus-free seedlings of sweet potato seedlings to improve yield and quality. After corn harvest, a row of late sweet potatoes will be planted at the end of June or early July.
Key measures for 4. management
1, protect the plastic film intact: regular inspection, found that the wind blowing or broken film timely remedy, to prevent air leakage cooling, loss of cover film function.
2. Top dressing: during the bell-mouth period of corn and the initial stage of sweet potato branching, 25kg of urea or 35kg of compound fertilizer per mu of corn and 30kg of potato compound fertilizer per mu of sweet potato. at the same time, attention should be paid to the supplementary application of phosphorus and potassium fertilizer in the later stage, and foliar fertilizer can also be used to prevent premature aging.
3, watering: fertilization combined with watering, according to the weather and soil moisture changes, timely irrigation, keep the soil moist, especially after corn heading, sweet potatoes can not be water shortage, but also to prevent excessive rain and waterlogging.
4. When the plastic film has little effect after the weather gets warmer, the corn can be removed from the film and cultivated and watered with top dressing. If the weather is dry, it can be carried out after watering.
5. Sweet potatoes are pucked when the main stem reaches 12 nodes to promote the growth of lateral branches. When the lateral branches reach 12 nodes, they are also pucked. Corn can be artificially pollinated if necessary.
6. After harvesting waxy corn, cut down corn stalks, fertilize the soil and plant sweet potatoes in time, with a plant spacing of about 30 ㎝. When planting, water the sweet potatoes in time to promote early and slow seedlings.
7, pest control to catch early treatment of small. The two crops are fresh food materials. Pesticides are not advocated to control diseases and pests. Prevention is the main method. Biological methods are used to prevent diseases and pests, reduce pesticide residues, and ensure food safety and health.
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