怎样利用营养钵育西瓜苗０６３０３００唐山市新区科协刘炳文０６３０３００唐山市新区农业局姚克祥用营养钵育西瓜苗必须注意选在背风向阳处，挖好阳畦，宽１．５米，深３２厘米，长可根据需苗量而定，用直径９～１０厘米、高１３厘米、底部有直径０．５厘米小孔的塑料营... How to use nutrition bowl to raise watermelon seedlings 0630300 New District, Tangshan City Association for Science and Technology Liu Bingwen 0630300 New District, Tangshan City Bureau of Agriculture Yao Kexiang nutrition bowl with watermelon seedlings must be selected at leeward sunny place, dug Yang Yang, 1.5 meters wide and 32 cm deep, long According to the amount of seedlings may be required, with a diameter of 9 ~ 10 cm, 13 cm high, the bottom diameter of 0.5 cm holes plastic camp ...