Wheat-watermelon-cotton intercropping pattern

Brief introduction of the model: Preserve watermelon lines in wheat fields, cover watermelons in sheds in early spring, and then plant cotton on both sides of the watermelon. This model is applied in the main cotton producing areas in our province. In the cotton/cotton cotton interplanting mode, wheat yields in the mode. 350 kilograms, the output value of 525 yuan; 3,500 kilograms of watermelon yield, production value of about 1400 yuan; 95 kilograms of cotton yield, production value of about 1,500 yuan.
Technical points and parameters:
1. After sowing of wheat, 2 meters is the area, wheat is sown by 1 meter and reserved space is 1 meter.
2, watermelon in mid-February plastic shed gourd root grafting seedlings to solve the problem of double wilting blight; from late March to early April ridge large seedlings transplanted 1 line watermelon, spacing 50 cm, covering the film, on the buckle small arch shed. Watermelon harvest in late June.
3, cotton in the late March nutritional seedlings nursery, in late April to early May in the watermelon seedlings on both sides of the hole transplanting 2 rows of cotton, plant spacing of 33 cm, acres planted about 1,500.
4, wheat, watermelon symbiotic period of 50 to 55 days; watermelon, cotton symbiotic period of 55 to 60 days.
5. For watermelon and cotton before or during colonization, apply 45,000 kilograms of manure per hectare, 1,500 kilograms of cake fertilizer, 750 kilograms of superphosphate, 450 kilograms of 45% potassium sulfate ternary compound fertilizer, and 60% of conventional daiwa base fertilizer. Into the base fertilizer. Watermelon stretched before applying osmanthus fertilizer can be applied thinly, can be applied by spraying 0.3% urea plus 0.2% potassium dihydrogen phosphate and trace element fertilizer or marsh; watermelon swollen fertilizer and cotton bud fertilizer in accordance with the expansion of melon Fertilizer application amount 1 application.
6, watermelon Seedling seedlings can be sprayed 800 times the seedling Ling or 3000 times the 802 and other auxin to promote seedling growth, melon vines grow to more than 70 centimeters when there is an appetite, 735 ml per hectare can be used 250 liters of water sprayed 2 times to control its vegetative growth, promote sitting vines. Double vine pruning, timely eradication of growth points, to prevent excessive growth of melons.
Typical application examples:
In 2009, Babao Town of Songzi City demonstrated the cultivation of intercropping of 22,000 mu of cotton and melon intercropping cotton. In addition to maintaining a stable yield of cotton, more than 87,000 tons of melons were added, and the total output value was 66 million yuan. Only watermelon achieved average increase of 1700 mu. Yuan, Huping income increased more than 2,000 yuan.
(Recommended unit: Wuhan Agricultural Research Institute)
Expert Reviews:
Reserve winter wheat and cotton fields before the closure of the line is rich in light and heat resources, this model uses light and heat resources and land space to plant watermelons to improve the economic benefits of cotton fields without affecting the production of wheat and cotton. This model is suitable for all Provincial cotton interplanting two mature cotton area.

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