论文部分内容阅读
高效节能型日光温室黄瓜干物质和氮、磷、钾的积累都呈“S”形曲线 ;氮、磷、钾吸收最大期为盛瓜初期至盛瓜后期 ,占总吸收量的 80 %以上 ;每形成 10 0kg黄瓜需吸收N量0 .2 0 0 2kg ,P2 O50 .0 92 1kg ,K2 O 0 .2 32 2kg ,其比例为 1∶0 .4 6∶1.16 ;每 6 6 7m2 产 130 0 0kg黄瓜 ,在盛瓜期氮、磷、钾吸收速率分别为N 190~ 2 70、P2 O577~ 135、K2 O 199~ 347g·(d·6 6 7m2 ) - 1。
The accumulation of dry matter and nitrogen, phosphorus and potassium of cucumber in energy-efficient solar greenhouse were all “S” shaped curve; the maximum absorption period of nitrogen, phosphorus and potassium was above 80% Each formation of 10kg cucumber need to absorb N amount 0.2202kg, P2O50 .092 1kg, K2O0 .2 32 2kg, the ratio of 1: 0. 4 6: 1.16; every 6 6 7m2 production 130 0 0kg cucumber, N, P and K absorption rates at full melon stage were N 190-270, P2 0577-135, K2 O 199-3 347 g · (d 6 6 7m2) -1, respectively.