冬季大棚栽培,阳光的多少直接影响植株的生长和棚温,为让棚内多进光,可采取以下措施: 合理布局在塑料大棚内遵循“北高南低”的原则,使植株高矮错落有序,尽量减少互相遮挡现象。保持棚膜洁净棚膜上的水滴、尘土等杂物,会使透光率下降30%左右。要经 Winter greenhouse cultivation, how much the sun directly affects the plant growth and shed temperature, in order to shed more into the light, can take the following measures: a reasonable layout in the plastic greenhouse to follow the “North High South” principle, the plant height Scattered and orderly, minimize the occlusion of each other. Keep the membrane clean film on the greenhouse drops, dust and other debris, will reduce the transmittance of about 30%. To go through