Tiwari K N.Mal P.K.Singh R.M Response of okra to drip irrigation under mulch and non-mulch conditions 1998(2是什么意思_Tiwari K N.Mal P.K.Singh R.M Response of okra to drip irrigation under mulch and non-mulch conditions 1998(2在线翻译_英语_读音_用法_例句