The cultivation of seedless watermelons on dryland slopes is more common. In this case, it is more complicated. Today, Xiaobian will share with you the water-saving cultivation techniques of seedless watermelons on dryland slopes.
Water-saving cultivation of seedless watermelon should pay attention to the following points: Linyi Fertilizer Network Co., Ltd.
The water-saving technology 1 uses a silver and black two-color film as a face covering, which is beneficial to water retention and heat preservation, and can improve the light intensity of the back of the leaf, and can also reduce the damage of the mites, and the weeds are not long. These effects are not unique to the use of a white mulch or a black mulch, and the growth of the open field is less likely. Linyi Fertilizer Network Copyright
2 The drip irrigation technology based on hose drip irrigation has the characteristics of low cost, remarkable water saving effect and convenient operation. First, the water is pumped from the low point to the high-level sedimentation basin, and then sedimented and filtered, and then sent to the drip irrigation pipe through the water pipe to be directly transported to the root area of ​​the plant. All top dressings can be dissolved into the pool and evenly applied to the roots through the drip irrigation tube. Linyi Fertilizer Network Copyright
3 Do the squatting along the contour line, fully intercept the rainwater along the contour line, the rainwater flows into the gully and seeps into the root zone, which can reduce irrigation, save power and reduce costs. Linyi Fertilizer Network Copyright
Cultivation Technology Linyi Fertilizer Network Copyright
1 Using the tray seedlings Hainan's plug seedling technology was introduced by Taiwan Farmers Seedling Company. This seedling method is especially suitable for large-scale specialized production, saving more than 60% of nutrient soil than nutrition bags and nutrient seedlings, and improving transportation effect. 2 to 4 times, the planting speed is increased by 5 to 8 times. The seedless watermelon variety is the No. 1 farmer's friend, suitable for export and north transport. Linyi Fertilizer Network Copyright
2 Expand the row spacing, plant spacing, reduce the number of planting plants, and reduce the cost of seedlings. Due to the drip irrigation and plug seedling planting technology, the plant survival rate is high, and the growth and development are neat. The ratio of qualified commodities is extremely high. Generally, the single raft is 3.5 m wide and the plant spacing is 0.7-0.8 m. Planting 240 to 280 plants at 6 67m2. The combination of the bottom fertilizer ditch and the application of the application, re-application of phosphate fertilizer, the amount of 667m2 is not less than 100kg, the organic fertilizer is not less than 4000kg, the dry chicken manure is not less than 50kg, and the conditional rotary tiller can be used to rotate the alfalfa along the kneading surface. Mix fertilizer and soil. Linyi Fertilizer Network Copyright
3 Strict pruning and snoring in the production of smashing will result in the plant being mad and the fruit is not neat, resulting in low commodity rate and low efficiency. In this type of production, seedless watermelons use three vines as the standard pruning method, as commonly referred to as “one master and two vicesâ€. After selecting the three vines, all the side vines should be destroyed before the fruit setting. Linyi Fertilizer Network Copyright
4 timely artificially assisted pollination and flowering fruit control period water control fertilizer, to ensure that the main vines 17 to 21 section fruit, that is, the main vine third female flower fruit, continuous pollination for 3 to 5 days. After that, the pollination of the female vines is carried out for 3 to 5 days. After one week, the fruit setting is checked. If more than 95% of the fruit is placed, it is not necessary to supplement. Linyi Fertilizer Network Copyright
5 timely fruit thinning, no more than 2 fruits per plant. About 10 days after the end of pollination, the fruit is thinned in time, and only one melon is left in the plant that is not prosperous, and two are left in the growth. Linyi Fertilizer Network Copyright
6 timely topdressing foliar spray application combined with water fertilization, at the same time before the vine spread out of the film, apply 1 or 2 times in the membrane side ditch compound fertilizer and potash fertilizer equal amount of fertilizer, 667m2 apply 50kg. In the result period, the compound fertilizer and potassium fertilizer were put into the sedimentation tank at a ratio of 0.1%, and the fertilizer was dripped twice or three times. The number of drops of fertilizer can be increased according to the growth. Foliar application of sweet fruit extract can increase the sugar content of the fruit, and spray the chlorophyll to maintain the growth of the plant. During the fruit expansion period, the amount of water is increased, so that the water can seep out of the membrane. The first melon is harvested in time, and the first melon is harvested and harvested in the north. If it is not harvested on the plant, it is not conducive to the expansion of the second melon. Linyi Fertilizer Network Copyright
Plant Protection Technology Linyi Fertilizer Network Copyright
The occurrence of diseases and insect pests in melons in southern Hainan is relatively serious and must be strengthened. Generally, spraying once every 5 to 7 days, without interruption, when there is no pest, the concentration of the drug should be low, mainly imported pesticides. At the time of onset, the drug is applied to different pests and diseases, preferably at a higher concentration for 2 to 3 times. According to the production experience, the use of chlorothalonil, cytotoxic, thiophanate, dexamethasone, agricultural streptomycin, etc. in a targeted manner, generally can ensure that no major diseases occur; enemy kill, love Fuding, Bt It can control common pests such as melons, mites, spotted flies and thrips. Linyi Fertilizer Network Copyright
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