Wheat-cotton-mung bean three-crop-per-year, three-harvest planting model

For the cotton variety, select a marker hybrid insect-resistant cotton with a loose plant type, chicken-claw-shaped leaves, good ventilation and light penetration, and strong boll-setting ability. @#@245@#@ For the variety, select the high-yield, disease-resistant variety Han 4564. For the mung bean variety, select Zhonglu 1. Choose a plot with good water and fertility conditions for the planting pattern, harvest the autumn crops in time to clear the stubble, and sow while there is soil moisture; if there is no moisture, irrigate the land to create moisture. Apply more than 4 cubic meters of high-quality farmyard manure, 25 kg of diammonium phosphate, 20 kg of potash fertilizer, and 15 kg of urea per mu. Plow deeply to 25 cm and harrow 3-4 times. Make beds 200 cm wide, with a bed ridge width of 60 cm and a bed surface width of 140 cm. In early October, sow 9 rows of wheat on the bed surface, using a uniform row spacing of 16.7 cm. In mid-April of the following year, cover the bed ridges with plastic film, using film 45 cm wide and 0.005 cm thick, with a film surface width of 25 cm after covering. Dibble 1 row of cotton in the middle of the film, with a cotton row spacing of 200 cm and a plant spacing of 20 cm, leaving 1667 plants per mu. The cotton is 33 cm from the wheat. After the wheat is harvested in mid-June, interplant 4 rows of mung beans between the cotton rows. The mung beans use a uniform row spacing of 40 cm and a plant spacing of 10 cm, leaving 13340 plants per mu. The mung beans are 40 cm from the cotton. The mung beans are harvested in late August, and the cotton is completely harvested by the end of October.