The intercropping of corn should be unified and ploughed, and the planting ditch should be opened in a unified manner. The distance between the trenches is 1.2 m, the double ridges are ridged, and the double ridges are wide and narrow.
The corn interplanting tomato double ridge is a web. First, 4 rows of corn are planted in a wide and narrow row on the first strip. The plant spacing is 30 cm (40+80) cm, the double plant stays in the seedling, and the 1852 seed is planted in 1852, that is, 3704 strains. Then plant 2 rows of tomatoes on the second strip, with a row spacing of 40 cm and 120 cm, and planting 1390 tomatoes per acre.
The spacing between the intercropped corn and the corn plant was the same as that of the interplanted tomato. Then, 4 rows of Chaotian pepper were planted on the second strip. The row spacing was 50 cm (40+80) cm, and 1110 strains of Chaotian pepper were planted in acre.
The intercropping of peanuts and maize plants was the same as that of interplanting tomato. Four rows of peanuts were planted on the second belt, with a row spacing of 20 cm (40+80) cm and 2,780 peanuts planted in acre.
The interplanting of sweet potato corn plants in maize was the same as that of interplanting tomato. Four rows of sweet potatoes were planted on the second belt, with a row spacing of 20 cm (50+70) cm and a planting of 1850 sweet potatoes.
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Black and White Ultrasound Scanner
"Black and White Ultrasound Scanner" is to emit ultrasonic waves, so that the ultrasonic waves encounter barriers to generate echoes, use the computer to collect these echoes, convert them into corresponding images and display them on the screen, and the images measured by the ultrasonic probe are black and white, so it is called " Black and White Ultrasound Scanner" is also the earliest diagnostic technology adopted by b-ultrasound.
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